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Discover the trade fairs and industry events where Rettberg is represented. Find upcoming exhibition dates, conferences and opportunities to meet our laboratory glass experts. Trade Shows & Events Personal contact is important to us. At the most important industry trade shows, we present our product portfolio, provide individual consultation, and show you the latest developments in laboratory glass and specialty glass technology. Feel free to arrange an appointment with us in advance. Trade Shows 2026 🔬 LAB SUPPLY Germany's leading trade fair for laboratory technology 📍 Berlin 📅 Tuesday, June 16, 2026 📍 Dresden 📅 Tuesday, September 8, 2026

Explore career opportunities at Rettberg. Join a specialized company for laboratory glassware and laboratory equipment with a collaborative working environment. Careers at Rettberg Tradition meets innovation – work with us on precise solutions for laboratories and industry. For decades, Gebr. Rettberg GmbH has stood for quality, reliability, and technical expertise in the field of laboratory and specialty glass. As a medium-sized family business, we combine technical know-how with an appreciative corporate culture. What sets us apart Short paths, clear communication Flat hierarchies and quick decisions ensure efficient work. Family-oriented culture People matter to us – we work in partnership and at eye level. Security and perspective Long-term collaboration, fair compensation, and individual development. Flexibility Modern working time models and home office options where appropriate. Job Posting: Scientific Glassblower (f/m/d) Your Responsibilities Manufacturing and processing of glass apparatus according to technical drawings or customer requirements Repair and modification of laboratory glass equipment Working with borosilicate and quartz glass Ensuring high quality and precision in production Collaborating with our sales team and customers on custom projects Your Profile Completed training as a scientific glassblower or comparable qualification Experience working with technical glass Precise, careful, and independent working style Strong manual skills and technical understanding Team-oriented and reliable What We Offer A secure position in a growing company Varied and challenging tasks Modern working environment and high-quality equipment Flat hierarchies and quick decision-making Opportunities for professional growth Application We look forward to receiving your application via email: info@rettberg.biz

Professional service for laboratory equipment and pipettes – maintenance, repair and calibration. Reliable laboratory service by Gebr. Rettberg. Service – Precision. Quality. Reliability. Fully demineralized water, calibrated pipettes, and professionally repaired equipment ensure your process quality. We offer a complete service from collection to return delivery—transparent and tailored to your requirements. Available exclusively in Germany! Our service Pipette service We handle the calibration, maintenance, and functional testing of pipettes and dispensers. This ensures precise measurement results and reliable performance in the laboratory. Repair of laboratory glassware We professionally repair and refurbish laboratory glassware and equipment. Through expert repair, we maintain functionality and extend the lifespan of your devices. Stainless steel frame construction We manufacture custom-made stainless steel tanks and laboratory furniture according to your technical specifications. Our solutions combine robust construction with the highest precision for laboratory and production applications. Regeneration of ion exchangers We regenerate ion exchangers and mixed bed systems professionally and efficiently. This extends the service life of your products and ensures cost-effective laboratory operations. Request a quote Please briefly describe your request, and we will get back to you immediately with an offer. Gebr. Rettberg GmbH | Göttingen Rudolf-Wissell-Str. 17 37079 Göttingen +49 (0)551 / 50 50 3-12 info@rettberg.biz Services & Costs Pipetten-Service Regenerations-Service Service Request Service Select service Company First name Last name Address Email Inquiry I have read and acknowledged the privacy policy Send Thank you for your message! Downloads & Datenblätter Water Monitor LWW 20 – Operating Instructions Download Installation, commissioning and functional description for monitoring cooling water flow. Pressure / Check Valve – Commissioning Download Instructions regarding transport lock, barrier liquid filling and correct adjustment. High Vacuum Valves with Glass Spindle – Technical Notice Download Information on sealing position and proper handling of the PTFE sealing system. High Vacuum PTFE Grease TF 100 HV – Data Sheet Download Product properties, application areas and safety-related information. Ion Exchanger – Regeneration Service Download Service overview, regeneration process and handling conditions. Pipette Service – Service & Calibration Order Form Download Order form for maintenance, repair and ISO 17025 calibration including service and data options. PTFE Valves – Adjustment Instructions Download Guide for readjusting the packing gland using the integrated Allen screw. Silica Gel Orange – Product Data Sheet Download Technical properties, adsorption values and colour indicator characteristics. Laboratory Glass Coating – Technical Information Download Properties, temperature resistance and chemical durability of the protective coating. Pipette Service & Calibration Download Repair, maintenance and calibration services including optional DAkkS certification. Repair Form – Health and Safety Clearance Download Form for requesting repairs including a health and safety declaration. Required for safe handling and acceptance of returned equipment.

Laboratory glassware for wine analysis in wineries and wine laboratories. Precision glassware for alcohol determination, acidity analysis and SO₂ testing – quality by Gebr. Rettberg. Procurement & Full-Range Supply System procurement, project coordination and full-range supply from a single source. Efficient purchasing structures, project sourcing and access to our extended product portfolio. Laboratory Glassware for Wineries Precision glassware for wine analysis and quality control in viticulture. Our laboratory glassware supports wineries and wine laboratories in the analysis of must and wine – from alcohol determination and acidity analysis to the control of sulfur dioxide levels. Typical Analyses in Wine Laboratories Laboratory glassware supports precise analyses of must and wine in wineries and wine laboratories. Alcohol Determination To determine the alcohol content, distillation methods and precise measuring instruments are used. Laboratory glassware such as distillation apparatus, volumetric flasks, and condensers enable reliable analyses in wine laboratories. Acidity Analysis The determination of total acidity and volatile acidity is one of the most important analyses in viticulture. Burettes, pipettes, and Erlenmeyer flasks are regularly used in titration processes. Sulfur Dioxide Analysis Monitoring the sulfur dioxide content (SO₂) is essential for the stability and quality of wine. Precise glassware ensures safe and reproducible laboratory analyses. Typical Laboratory Glassware for Wineries Distillation apparatus Volumetric flasks Graduated cylinders Burettes Pipettes Erlenmeyer flasks Test tubes Condensers and distillation accessories Your Partner for Laboratory Glassware in Wine Laboratories As a manufacturer and specialist supplier of laboratory glassware, Gebr. Rettberg GmbH supports wineries and wine laboratories in selecting suitable glassware for analytical applications. Thanks to many years of experience in the laboratory sector, we offer reliable products, short delivery times, and expert advice. Contact us

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. Laboratory Glassware & Lab Supplies High-quality laboratory equipment – expertise built over generations Gebr. Rettberg GmbH is your reliable partner for laboratory glassware, lab supplies, and laboratory equipment. With decades of experience, we supply companies, research institutions, and universities with high-quality products . LabStore – Directly Available. Ready to Order. Standard products for laboratories, industry and technical operations – fast, reliable and available online. LabStore Fast and convenient online ordering · selected products! OUR LABORATORY GLASSWARE Distillation and extraction technology Distillation apparatus – Complete systems for laboratory and research applications Components for distillation apparatus – cooling coils, distillation bridges, feed adapters and intermediate pieces Extraction apparatus – Soxhlet apparatus and Kutscher-Steudel extractors Adapters and transition joints – standard ground glass adapters between different ground glass sizes Reaction vessels and accessories – reaction flasks with standard ground joint and magnetic stir bars Glass vessels and standard ground glass joints Standard ground components – cores, sleeves and accessories – Flexible assembly options according to DIN standards Glass filter devices – glass filter funnels and filter crucibles in porosities P1 to P5 Flasks with standard ground joint and thread – round-bottom flasks, flat-bottom flasks, three-neck flasks (NS 14/23 to NS 45/40) Schlenk lines and Schlenk technology – For gentle concentration and sample preparation Sublimation apparatus – Thermal separation of temperature-sensitive substances Dosing and filling funnels – dropping funnels, separating funnels, powder funnels Cold traps and Woulff bottles – For vacuum applications and as safety bottles Gas washing bottles – Drechsel bottles and absorption bottles Gas distribution systems – Controlled gas supply with check valves Desiccator systems – drying and storage of moisture-sensitive substances Chromatography – Columns , fraction collectors and separation columns Eudiometer units – precision measuring instruments for gas volume determination Weighing bottles, impinger bottles and hybridization bottles – special glassware for scientific applications Centrifuge tubes – pointed tubes and centrifuge tubes according to DIN Accessories for rotary evaporators – evaporating flasks, receiving flasks, cooling coils Full-Range Shop – Extended Portfolio. Centralized Access. Our Full-Range Shop expands the LabStore assortment with thousands of additional products for industry, laboratories and technical operations. Manufacturer-independent sourcing, consolidated supplier structures and efficient purchasing processes – all managed centrally by Rettberg. Full Product Range | Lab Catalog Complete product range with individualized pricing! LABORATORY SUPPLIES & LABORATORY EQUIPMENT Basic equipment Containers – storage containers, wide-mouth bottles, dropper bottles made of glass and plastic General laboratory supplies – beakers, graduated cylinders, Erlenmeyer flasks, test tubes Laboratory glassware – precision instruments for volumetry, titration and analysis Safety and technology Volumetrics – Pipettes, burettes, volumetric pipettes, volumetric flasks – highest precision instruments Pump technology – vacuum pumps, diaphragm pumps, peristaltic pumps Sample preparation – mortar, pestle, sieves, homogenizers Temperature control equipment – heating plates, heating baths, thermostats, drying cabinets Stirring and shaking technology – magnetic stirrers, overhead shakers, orbital shakers Separation technology – centrifuges, filters, filtration equipment Biotechnology – fermenters, bioreactors, incubators Measurement technology – pH meters, conductivity meters, thermometers Optical examination – microscopes, spectrometers, refractometers Laboratory equipment – laboratory trolleys, racks, drying stands ✓ Comprehensive product range Over 150,000 products for laboratory and research

Laboratory glassware and laboratory equipment from Gebr. Rettberg. Distillation technology, ground-glass joints, volumetric glassware and more – over 150,000 products for laboratories and research. Vacuubrand Vacuum Technology & Laboratory Pumps Authorized Vacuubrand Dealer – Expertise Across Generations Gebr. Rettberg GmbH is your authorized partner for vacuum pumps, vacuum systems and vacuum controllers by VACUUBRAND® . With decades of experience, we supply companies, research institutions and universities with certified original products. LabStore – Directly Available. Ready to Order. VACUUBRAND pumps and accessories for laboratory, industry and technical applications – fast, reliable and available online. VACUUBRAND in the LabStore Fast and convenient online ordering · selected products! Our Vacuubrand Products Vacuum Systems Complete pump stands with integrated control for demanding processes Diaphragm Pumps Oil-free, chemical-resistant – ideal for lab and analytics Vacuum Controllers Precise pressure control for distillation, filtration and evaporation Accessories & Spare Parts Original diaphragms, cold traps, filters and fittings by VACUUBRAND® Vacuubrand – Product Inquiry Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message!

Allgemeine Geschäftsbedingungen der Gebr. Rettberg GmbH für Lieferungen und Leistungen im B2B-Laborumfeld. Terms and Conditions General Terms and Conditions of Gebr. Rettberg GmbH – Göttingen The following terms and conditions shall apply to all offers and contracts of Gebr. Rettberg GmbH concerning deliveries and services. By accepting these terms and conditions without objection, the customer expressly approves them. Any differing general terms and conditions of the customer are hereby expressly rejected in advance. They shall not become part of the contract even if no express objection is raised in an individual case. Conclusion of Contract / Offer All offers made by Gebr. Rettberg GmbH are non-binding. Orders shall only be binding on Gebr. Rettberg GmbH insofar as Gebr. Rettberg GmbH confirms them or fulfills them by delivering the goods. Amendments and oral agreements shall only become effective once confirmed in writing by Gebr. Rettberg GmbH. Offers of Gebr. Rettberg GmbH that do not contain an acceptance period may be revoked by Gebr. Rettberg GmbH unless the customer’s written acceptance is received by Gebr. Rettberg GmbH within 3 weeks from the date of the offer. The documents belonging to the offer / contract as well as catalogue and brochure details such as illustrations, drawings and dimensions are only approximate and are subject to customary tolerances (e.g. those resulting from the glass tubes and hollow bodies used in production). Drawings and illustrations remain the property of Gebr. Rettberg GmbH. Gebr. Rettberg GmbH reserves the right to make changes to its products in the course of further development without prior notice, provided this is reasonable for the customer. Technical modifications, design changes, material substitutions and changes to product specifications remain reserved insofar as they become necessary due to technical developments, changes in legal requirements, improvements in manufacturing processes or the availability of materials and do not materially impair the agreed functionality or suitability for the intended purpose. In the case of custom-made products and customer-specific designs, deviations resulting from manufacturing processes shall be permissible provided they are reasonable for the customer and do not impair the contractually intended use. Price / Shipment / Packaging / Scope of Delivery / Delivery Quantity All prices are stated in euros, EXW (Incoterms® 2020), plus applicable domestic VAT or comparable foreign taxes and packaging costs. Customers within the EU are obliged to provide their VAT identification number. Gebr. Rettberg GmbH shall choose the packaging for the delivery items and charge the packaging to the customer. If the customer requests shipment, this shall be effected at the customer’s expense and risk. The customer shall be responsible for disposal of the packaging unless Gebr. Rettberg GmbH requests its return. Delivered devices and auxiliary equipment shall be assembled by the customer. Deviations in the delivery quantity of up to 10% (over- or under-delivery) compared to the order cannot be ruled out for production reasons and must be accepted by the customer. Delivery Period / Force Majeure The stated delivery periods are non-binding due to the risks and special characteristics of glass processing. They begin upon receipt of all documents and, where applicable, components to be provided by the customer, or upon final technical clarification, and end when the delivery is handed over for shipment. Compliance with the delivery period requires fulfillment of the customer’s contractual obligations, including those arising from previous legal transactions unrelated to the current order. The delivery period shall be extended appropriately in the event of measures taken in connection with labor disputes, in particular strikes and lockouts, as well as in the event of unforeseen obstacles beyond the control of Gebr. Rettberg GmbH, e.g. operational disruptions or delays in the delivery of essential materials, insofar as such obstacles demonstrably have a substantial effect on the completion or delivery of the delivery item. This shall also apply if such circumstances occur at suppliers of Gebr. Rettberg GmbH. The aforementioned circumstances shall not be attributable to Gebr. Rettberg GmbH even if they arise during an existing delay. In important cases, Gebr. Rettberg GmbH shall inform the customer as soon as possible of the beginning and end of such obstacles. Partial deliveries shall be permissible within the delivery periods specified by Gebr. Rettberg GmbH insofar as this does not result in any disadvantages in use for the customer. If, by way of exception, Gebr. Rettberg GmbH has undertaken an installation obligation, dates promised by Gebr. Rettberg GmbH shall only be binding if the delivery items to be installed are provided in due time by the customer. If Gebr. Rettberg GmbH culpably exceeds an agreed delivery period, delay in delivery shall only exist after the setting of a grace period of 4 weeks. After expiry of this 4-week grace period without result, the customer may withdraw from the contract. In the event of delay in delivery, except in cases of intent or gross negligence, liability of Gebr. Rettberg GmbH for damage caused by delay shall be excluded. Payment / Due Date / Security for Payment / Default in Payment Payment shall be made prior to delivery. Other payment terms and cash discount deductions may be agreed in individual cases. Default in payment shall commence upon due date. From the due date, each amount owed shall bear interest at 9% above the base interest rate of the European Central Bank. The assertion of further damages shall not be excluded. If installment payment has been agreed and the customer defaults on one installment, the remaining amount shall become due immediately. If doubts arise as to the customer’s solvency, Gebr. Rettberg GmbH shall be entitled, at its option, either to require cash payment prior to delivery, payment prior to production or comparable security, or to withdraw from the contract. Confidentiality The customer shall keep confidential any confidential information of Gebr. Rettberg GmbH (e.g. drawings, product developments, intellectual property) and in particular shall not disclose it to third parties. Cancellation Costs If the customer unjustifiably withdraws from an order placed, Gebr. Rettberg GmbH may, without prejudice to the possibility of claiming higher actual damages, demand 15% of the sales price, but at least €15.00, for the costs incurred in processing the order and for lost profit. The customer reserves the right to prove lower damage. This shall not constitute a waiver by Gebr. Rettberg GmbH of any claims provided for by law. Warranty The customer may only rely on assurances of characteristics if Gebr. Rettberg GmbH has expressly given them to the customer in writing. The customer shall inspect the goods immediately upon receipt with due commercial care for defects and, if applicable, notify any existing defects in writing without undue delay. Hidden defects must be notified in writing without undue delay after discovery. Gebr. Rettberg GmbH shall only be liable for defects that can be proven to have already existed at the time of dispatch of the goods. As a rule, Gebr. Rettberg GmbH shall be liable for defects for a period of one year. Excluded from this are third-party products resold by Gebr. Rettberg GmbH without its own processing. In this respect, the claims of Gebr. Rettberg GmbH against the third-party manufacturer shall be assigned to the customer. If a defect has been notified in due form and time, Gebr. Rettberg GmbH shall be entitled, within the framework of subsequent performance, to choose between replacement or substitute delivery and remedying the defect by repair, reworking or restoration. This liability shall not extend to normal wear and tear. Gebr. Rettberg GmbH assumes no warranty whatsoever for custom-made products manufactured according to the customer’s specifications. If there is a defect in title, Gebr. Rettberg GmbH shall be entitled to modify the delivery item in a manner reasonable for the customer in order to remedy the defect in title. The customer shall only be entitled to claims for damages in lieu of performance insofar as Gebr. Rettberg GmbH has intentionally or with gross negligence breached a duty. If, in the case of a defect in title, modification is not possible under economically reasonable conditions or within a reasonable period, both the customer and Gebr. Rettberg GmbH shall be entitled to withdraw from the contract. Insofar as Gebr. Rettberg GmbH assumes a durability guarantee, the customer shall bear the burden of proving that the material defect existed at the time of transfer of risk, unless this is unreasonable for the customer in the individual case. In all other respects, the provisions under “Liability” shall also apply to warranty. Insofar as a defect has been fraudulently concealed or a guarantee for the quality has been assumed by Gebr. Rettberg GmbH, Gebr. Rettberg GmbH shall be liable without limitation. Intended Use The products, apparatus, devices, glassware and other items supplied by Gebr. Rettberg GmbH are intended exclusively for professional use in companies, laboratories, research institutions, universities, public authorities and comparable organizations. Prior to commissioning, the customer shall independently verify that the delivered products are suitable for their intended purpose and comply with all legal, regulatory, safety-related and operational requirements applicable at the place of use. Compliance with all applicable regulations, in particular those relating to occupational safety, hazardous substances, environmental protection and operational safety, shall be the sole responsibility of the customer. Gebr. Rettberg GmbH shall not be liable for damages resulting from improper use, incorrect installation, operation, storage, maintenance, modification or further processing of the delivered products, unless mandatory statutory liability provisions provide otherwise. Liability In cases of intent, gross negligence by legal representatives or senior employees, and culpable breach of essential contractual obligations by these or other employees, Gebr. Rettberg GmbH shall be liable in accordance with the statutory provisions. Gebr. Rettberg GmbH shall not be liable for breach of non-essential contractual obligations by other employees. Gebr. Rettberg GmbH shall not be liable for atypical contractual damages that are therefore hardly foreseeable. Claims for damages arising from positive breach of contract and consequential damages, in particular such damages caused by the goods delivered by Gebr. Rettberg GmbH at the customer’s or third parties’ premises through storage, transport, processing, further processing or resale, shall be excluded. Claims for damages arising from tort shall exist only in the event of intentional or grossly negligent causation. This shall also apply to acts of vicarious agents of Gebr. Rettberg GmbH. Gebr. Rettberg GmbH shall be liable within the framework of the statutory provisions for culpable injury to life, body and health. Upon commissioning, the customer shall satisfy itself of the proper condition of the goods. The customer alone shall be responsible for the proper and appropriate use of the goods. If fault is a prerequisite for a claim by the customer, the burden of proof shall lie with the customer, unless the law provides otherwise and such burden of proof is unreasonable for the customer. Gebr. Rettberg GmbH can only carry out repairs sent in on devices of its own manufacture. Gebr. Rettberg GmbH shall perform repairs with the utmost care. However, due to the characteristics of the material glass, Gebr. Rettberg GmbH excludes any guarantee for the success of the repair. Such repair shall expressly be carried out at the sender’s risk. Gebr. Rettberg GmbH shall bear no liability and no obligation to provide compensation for damage to or destruction of the item submitted for repair. Liability for culpable injury to life, body and health of employees of Gebr. Rettberg GmbH and for damage to buildings and facilities of Gebr. Rettberg GmbH arising from the processing of repairs (e.g. due to contamination or improperly packaged broken glass) shall lie with the customer. Retention of Title Gebr. Rettberg GmbH retains title to all delivery items until irrevocable receipt of full payment and shall be entitled to withdraw from the contract if the customer defaults on payment. The retention of title shall also extend to claims that Gebr. Rettberg GmbH subsequently acquires against the customer in connection with the delivery items. If Gebr. Rettberg GmbH has further claims against the customer arising from other legal transactions, the retention of title shall remain in force until these claims have also been settled. The customer shall be entitled to resell the delivery items in the ordinary course of business; the customer hereby assigns to Gebr. Rettberg GmbH all claims arising from the resale of the delivery items to third parties in the amount of the purchase price agreed between Gebr. Rettberg GmbH and the customer (including applicable domestic VAT or comparable foreign tax), irrespective of whether the resale takes place before or after processing of the reserved goods. The customer shall be authorized to collect the claims against the third party as long as the customer complies with its payment obligations towards Gebr. Rettberg GmbH and no insolvency proceedings have been opened over its assets. The authority of Gebr. Rettberg GmbH to collect the claim itself shall remain unaffected. However, Gebr. Rettberg GmbH undertakes not to collect the claims as long as the customer duly complies with its payment obligations, is not in default of payment, and no insolvency proceedings have been opened over its assets. If this is the case, however, Gebr. Rettberg GmbH may demand that the customer disclose the assigned claim and its debtors, provide all information necessary for collection, hand over the relevant documents, and notify debtors (third parties) of the assignment. Processing and treatment shall be carried out for Gebr. Rettberg GmbH. If the goods are combined, mixed or blended with other goods not belonging to Gebr. Rettberg GmbH, Gebr. Rettberg GmbH shall acquire co-ownership of the new item in the proportion of the value of the goods delivered by Gebr. Rettberg GmbH to the value of the other goods at the time of combination, mixing or blending. Gebr. Rettberg GmbH undertakes to release the securities to which it is entitled at the customer’s request insofar as their value exceeds the claim to be secured by more than 20%. The customer may neither pledge the delivery items nor assign them by way of security. In the event of third-party access, in particular attachment, the customer must notify Gebr. Rettberg GmbH immediately in writing and immediately inform the third party of Gebr. Rettberg GmbH’s retention of title. The customer shall bear all costs incurred for lifting the attachment or recovering the goods or delivery items. The customer shall be obliged to keep the goods or delivery items in proper condition during the period of retention of title and, as long as the customer has not yet resold them in the ordinary course of business, to have all maintenance work provided for by Gebr. Rettberg GmbH and all necessary repairs carried out without delay by Gebr. Rettberg GmbH or by a company recognized by Gebr. Rettberg GmbH for servicing the goods or delivery items. In addition, as long as the customer has not yet resold the goods or delivery items in the ordinary course of business and transferred possession, the customer must mark them as the property of Gebr. Rettberg GmbH. Duty to Cooperate in the Case of Advisory, Usage and Processing Instructions Gebr. Rettberg GmbH requests express notice if the customer aligns its own conduct with technical advice and application instructions whose effects are not obviously recognizable to Gebr. Rettberg GmbH. Information provided by Gebr. Rettberg GmbH or its employees regarding processing and application possibilities of products, technical advice and other statements is given to the best of its knowledge, but is non-binding and provided to the exclusion of any liability. Foreign Trade Regulations Gebr. Rettberg GmbH shall be responsible for compliance with German regulations insofar as products manufactured in Germany are exported. Compliance with and implementation of the relevant foreign trade law provisions (e.g. import licences, foreign exchange transfer permits, etc.) and other laws applicable outside the Federal Republic of Germany shall fall exclusively within the customer’s area of responsibility. Export Regulations The buyer undertakes to comply with the applicable export regulations of Germany, the EU and US export control regulations when exporting goods. This applies in particular to goods of American origin. The buyer must comply with these provisions even if its place of jurisdiction and/or the delivered goods are outside the territorial scope of the aforementioned export regulations. Sanctions Lists / Embargo Gebr. Rettberg GmbH is legally obliged to comply with the sanctions lists and embargo regulations published by the European Union, the Federal Republic of Germany and other competent authorities. Offers, orders and deliveries are therefore subject to the express proviso that their execution is not prevented by any national or international foreign trade regulations, in particular embargoes or other sanctions. Gebr. Rettberg GmbH shall be entitled to reject offers and to terminate existing contracts with immediate effect if the customer, its beneficial owners, subsidiaries, shareholders or business partners are listed on relevant sanctions lists (in particular the EU sanctions list, the US SDN list of OFAC or comparable national or international lists) or if there is a sufficiently justified suspicion of such listing. In such cases, mutual claims for damages shall be excluded. The customer warrants that neither the customer itself nor any third parties involved in the transaction (in particular end customers, intermediaries or carriers) are listed on such sanctions lists. The customer undertakes to inform Gebr. Rettberg GmbH without undue delay if this changes or if any indications of such listing become known. Upon request, the customer shall provide the information and documents required to carry out a sanctions screening. Gebr. Rettberg GmbH shall be entitled to request information from the customer regarding the end user, intended end use and destination country of the delivered goods. The customer undertakes to provide such information truthfully and completely and, upon request, to submit end-user certificates or other appropriate supporting documentation. If the customer refuses to cooperate or if there are justified doubts regarding the legality of the delivery, Gebr. Rettberg GmbH shall be entitled to suspend performance of the order or withdraw from the contract. Industrial Property Rights Gebr. Rettberg GmbH reserves all industrial property rights and copyrights in respect of the products, constructions, shapes, product developments, samples, services, illustrations and other documents provided by Gebr. Rettberg GmbH (in particular insofar as they contain intellectual property of Gebr. Rettberg GmbH). Offers, illustrations, including schematic illustrations, and all information serving the design of products may not be reproduced or passed on to third parties without the express consent of Gebr. Rettberg GmbH. All documents must be returned to Gebr. Rettberg GmbH upon request. The customer is responsible for ensuring that no third-party industrial property rights are infringed as a result of its instructions and specifications regarding shapes, colors, designs, special features, etc. of goods (in particular apparatus to be manufactured). The customer shall indemnify Gebr. Rettberg GmbH against all third-party claims arising from infringement of the aforementioned industrial property rights, including all court and out-of-court costs, and upon request support Gebr. Rettberg GmbH in any legal dispute. Limitation Period All claims of the customer – on whatever legal grounds – shall become time-barred after one year. The statutory limitation periods shall apply in cases of intentional or fraudulent conduct and for claims under the Product Liability Act. Software Insofar as software is included in the scope of delivery, the customer is granted a non-exclusive right to use the delivered software, including its documentation. It is provided for use on the designated delivery item. Use on more than one system is prohibited. The customer may reproduce, revise, translate or convert the object code into source code only to the extent permitted by law (§§ 69 a et seq. German Copyright Act). The customer undertakes not to remove or alter manufacturer information, in particular copyright notices, without the prior express consent of Gebr. Rettberg GmbH. All other rights to the software and the documentation, including copies, shall remain with Gebr. Rettberg GmbH or the software supplier. The granting of sublicences is not permitted. Place of Performance, Place of Jurisdiction and Applicable Law The business relationship shall be governed exclusively by the laws of the Federal Republic of Germany. The UN Convention on Contracts for the International Sale of Goods (CISG) shall not apply. The place of performance for all deliveries and services as well as the place of jurisdiction shall be Göttingen. In addition, Gebr. Rettberg GmbH shall be entitled, at its option, to assert its own claims at the customer’s place of jurisdiction. The customer shall not be permitted to bring a counterclaim before courts other than the court hearing the action or to set off its claims against the claim asserted in the action before courts other than the court hearing the action. Severability Clause Should any provision be or become invalid, the validity of the remaining provisions shall remain unaffected. Language These General Terms and Conditions for deliveries and services of Gebr. Rettberg GmbH are drafted in the German language. All documents (e.g. order confirmations, delivery papers, invoices, payment transactions, etc.) are also drafted in German. In case of doubt, the German text shall prevail.

Bestellen Sie Laborbedarf, Laborglasgeräte, Verbrauchsmaterialien und Herstellerartikel schnell und unkompliziert. Auch nicht im Rettberg LabStore gelistete Produkte können direkt angefragt werden. Quick Order for Laboratory Supplies Use our Quick Order service to request laboratory supplies, consumables, laboratory equipment, and manufacturer-specific products directly. Products that are not currently listed in the Rettberg LabStore can also be requested through this form. Our team will review availability, delivery times, and pricing and, if required, provide a tailored quotation. Laboratory Supplies Quick Order Company / Institute Contact Person Customer Number (optional) E-Mail Phone Number (optional) Requested Items Upload File (optional) Choose File Optionally, you can upload Excel files, PDFs, or item lists. I accept the privacy policy Send Thank you for your request.

Hersteller von Laborglasgeräten und B2B-Vollversorger für Laborbedarf, Laborgeräte, Sicherheit und Sonderanfertigungen für Forschung und Industrie. Rettberg – Precision Laboratory Glassware. Reliable Laboratory Technology. Manufacturer of laboratory glassware and partner for dependable laboratory equipment in research, industry, and technical applications. About Us Gebr. Rettberg GmbH is an owner-managed company with many years of experience in the laboratory sector. We stand for quality, reliability, and practical solutions. As a manufacturer of high-quality laboratory storage equipment and a trusted partner for laboratory technology, we support customers from research, industry, and technical fields with tailored products and personal consultation. Our focus is on sustainably optimizing laboratory workflows and delivering real added value – from planning to implementation. Our Goal: To make laboratory processes more efficient, safer, and more cost-effective. Learn more Our core competencies Manufacture of laboratory glassware Laboratory Technology We manufacture laboratory glassware for professional use – from standard products to custom-designed special applications. Our glassware impresses with precise workmanship, exceptional quality, and long service life. We offer high-quality laboratory technology for research, industry, and technical applications. Our range includes proven equipment from well-known manufacturers as well as reliable solutions for everyday professional laboratory work. Laboratory Supplies Custom-made products in glass apparatus construction We offer a comprehensive range of laboratory consumables, safety equipment, and protective gear for professional use. Our solutions ensure safe, standards-compliant, and efficient work in laboratories and industry. We produce tailor-made laboratory glassware and apparatus exactly according to your technical specifications – from planning and precise manufacturing to on-time delivery. Our Onlineshops LabStore Fast and convenient online ordering · selected products! Lab Catalog Complete product range with individualized pricing! Our service We handle the calibration, maintenance, and functional testing of pipettes and dispensers. This ensures precise measurement results and reliable performance in the laboratory. Pipette service Discover more We professionally repair and refurbish laboratory glassware and equipment. Through expert repair, we maintain functionality and extend the lifespan of your devices. Repair of laboratory glassware Discover more We manufacture custom-made stainless steel tanks and laboratory furniture according to your technical specifications. Our solutions combine robust construction with the highest precision for laboratory and production applications. Stainless steel frame construction Discover more We regenerate ion exchangers and mixed bed systems professionally and efficiently. This extends the service life of your products and ensures cost-effective laboratory operations. Regeneration of ion exchangers Discover more Contact Gebr. Rettberg GmbH | Göttingen Rudolf-Wissell-Str. 17 37079 Göttingen +49 (0)551 / 50 50 3-12 info@rettberg.biz Contact Form Topic Select topic Company First name Last name Address Email Message I have read and acknowledged the privacy policy Senden Thank you for your message! Careers at Rettberg An innovative work environment, technical challenges, and long-term prospects – at Rettberg, we combine tradition with the future. Strengthen our team as an expert in laboratory and industrial technology. Job Openings

Informationen zur Barrierefreiheit dieser Website: Hier erfahren Sie, inwieweit die Inhalte von Rettberg barrierefrei zugänglich sind, welche Maßnahmen umgesetzt wurden und wie Sie Barrieren melden können. Accessibility statement This accessibility statement was last updated on 18.01.2026. Gebr. Rettberg GmbH strives to improve its website. https://www.rettberg.biz | https://www.rettberglab.com to make it accessible to all users, including people with disabilities. What does web accessibility mean? An accessible website enables people with disabilities to use content with the same or a similar degree of comfort and functionality as other users. This is achieved through the technical capabilities of the system used as well as through assistive technologies. Accessibility measures on this website This website has been designed in accordance with the Web Content Accessibility Guidelines (WCAG) 2.1 – Conformance Level AA. As part of our accessibility measures, the following points, among others, have been implemented: Use of the Wix Accessibility Wizard to identify and resolve potential barriers Setting the correct page language Clear and consistent heading structures Logical order of content Provision of alternative texts for images Color contrasts in accordance with the requirements for good readability Reduction of animated effects Ensuring the accessibility of videos, audio content, and documents Restrictions due to third-party content As a B2B company, we attach great importance to barrier-free communication. If you require assistance or have questions regarding the accessibility of our content, please contact us. Accessibility in our premises Our business premises are primarily geared towards B2B operations and are not designed as publicly accessible customer areas. On-site visits generally take place by prior appointment only. Should assistance regarding accessibility be required during a visit, we kindly ask you to contact us in advance so that we can review individual solutions and, as far as possible, make appropriate arrangements. Access to our premises and potential support measures will be coordinated on a case-by-case basis. Contact us if you have questions about accessibility If you encounter any barriers on our website or require assistance, please feel free to contact us: Gebr. Rettberg GmbH Email: info@rettberg.biz Telephone: +49 (0) 551 50 50 3-0 We will endeavor to review your request promptly and find a solution.

Antworten auf häufige Fragen zu Bestellung, Produkten, Online-Shops und Lieferung. Rettberg beliefert Unternehmen, Labore und Forschungseinrichtungen. FAQ Order & Purchase Products & Services Our online shops Shipping & Delivery Can private individuals also order from Rettberg? No. Our offer is exclusively for businesses, public institutions, universities, and research institutions. We do not deliver to private individuals. How can I request a quote? You can contact us via our contact form, by email at info@rettberg.biz , or by phone. For products from our online shops, the inquiry function in the LabStore and full-range shop is also available. Which payment methods are accepted? For business customers, we offer payment by invoice after a successful credit check. Further payment options can be found in the LabStore, the full-range shop, or by contacting us directly.

Informationen zum Datenschutz, zur Verarbeitung personenbezogener Daten und zu Ihren Rechten bei der Gebr. Rettberg GmbH. Privacy Policy The protection of your personal data is an important concern for us. The following information provides an overview of what happens to your personal data when you visit our website. Our offer and this website are directed exclusively at commercial customers, companies, public institutions, authorities, universities, and other professional end-users (B2B). Delivery to private individuals (consumers within the meaning of § 13 BGB) is excluded. Accordingly, we process personal data of visitors and contact persons within the scope of business relationships. 1. Controller The data processing on this website is carried out by the website operator: Gebr. Rettberg GmbH Rudolf-Wissell-Straße 17 37079 Göttingen Germany Phone: +49 (0) 551 / 50 50 30 Email: info@rettberg.biz The controller is the natural or legal person who alone or jointly with others determines the purposes and means of the processing of personal data. 2. Hosting and Infrastructure (Wix) This website is operated using the website builder of Wix.com Ltd., 40 Namal Tel Aviv St., Tel Aviv 6350671, Israel (hereinafter "Wix"). Wix stores and processes data on servers in the European Union, the USA, and Israel. For Israel, there is an adequacy decision by the European Commission, which certifies an adequate level of data protection. For the USA and Wix companies in the USA (such as Wix.com Inc.), the transfer takes place on the basis of the EU-US Data Privacy Framework (DPF) or via standard contractual clauses of the EU Commission to ensure an equivalent level of data protection. Further information on data protection at Wix can be found at wix.com . The processing of data by Wix is based on Art. 6 (1) (f) GDPR (our legitimate interest in a bug-free, technically secure, and visually appealing provision of our online offer). 3. Collection of Data When Visiting the Website (Server Log Files) When you access this website, Wix automatically collects data and stores it in so-called server log files. This includes: Browser type and browser version Operating system used Referrer URL (the previously visited page) Host name of the accessing computer (IP address) Time and date of the server request This data is technically necessary to display the website stably and securely. It is not merged with other data sources. The legal basis for this processing is Art. 6 (1) (f) GDPR (legitimate interest in system security and technical optimization of the website). 4. Contact Forms and Requests for Quotations If you send us inquiries via the contact form, request form, or directly by email, your details, including the contact details you provide there (in particular first name, last name, email address, company name, subject, and the content of your message), will be stored by us for the purpose of processing the inquiry and in the event of follow-up questions. Since our offer is aimed exclusively at B2B customers, the processing of this data is based on the following legal bases: If you inquire as a sole proprietor or direct contractual partner: Art. 6 (1) (b) GDPR (performance of pre-contractual measures or fulfillment of a contract). If you inquire as an employee, representative, or contact person of a company, an authority, or a university: Art. 6 (1) (f) GDPR. Our legitimate interest lies in efficient communication and the processing of business inquiries with our commercial partners. 5. Newsletter (if offered) If a newsletter is offered on our website and you subscribe to it, we process your email address and, if applicable, your name exclusively for the regular dispatch of the newsletter. The processing is based on your explicit consent (Art. 6 (1) (a) GDPR). You can withdraw this consent and thus the subscription to the newsletter at any time with effect for the future (e.g., via the unsubscribe link in the newsletter or informally by email to info@rettberg.biz ). If no newsletter is offered or used, this section does not apply. 6. Cookies and Tracking Tools Our website uses cookies. Cookies are small text files that are stored on your device and saved by your browser. Technically necessary cookies: These are absolutely necessary for the safe and proper operation of the website. The legal basis for storing and reading these cookies is § 25 (2) No. 2 TDDG. The subsequent data processing is carried out in accordance with Art. 6 (1) (f) GDPR (legitimate interest in providing basic website functions). Optional cookies (e.g., analysis and marketing): Optional cookies and comparable technologies are only set after your explicit consent via our cookie banner. The legal basis for storage and access to this data is § 25 (1) TDDG, and the subsequent data processing is based on Art. 6 (1) (a) GDPR. You can adjust or withdraw your settings in the cookie banner at any time. 7. Your Rights as a Data Subject Within the framework of the statutory provisions, you have the right at any time to: Access to your personal data processed by us (Art. 15 GDPR) Rectification of incorrect or completion of incomplete data (Art. 16 GDPR) Erasure of your data stored by us, provided that no statutory storage obligations prevent this (Art. 17 GDPR) Restriction of processing (Art. 18 GDPR) Data portability in a structured, commonly used, and machine-readable format (Art. 20 GDPR) Object to the processing of your data based on Art. 6 (1) (f) GDPR (Art. 21 GDPR) You also have the right to lodge a complaint with a competent data protection supervisory authority in accordance with Art. 77 GDPR. 8. Withdrawal of Consent Many data processing operations are only possible with your explicit consent. You can withdraw consent once given at any time with effect for the future, for example by sending an informal email to info@rettberg.biz . The lawfulness of the data processing carried out up to the withdrawal remains unaffected by the withdrawal. 9. Data Security We use modern technical and organizational security measures (TOMs) to protect your data against accidental or intentional manipulation, partial or complete loss, destruction, or against unauthorized access by third parties. 10. Validity and Changes This privacy policy is currently valid and is status as of June 12, 2026. Due to the further development of our website or due to changed legal or regulatory requirements, it may become necessary to adapt this privacy policy.