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Laborglasgeräte & Laborbedarf von Gebr. Rettberg: Destillationstechnik, Normschliffgeräte, Volumetrie und mehr. Über 150.000 Artikel für Labor und Forschung. Laboratory Glassware & Supplies High-quality laboratory equipment – generations of expertise Gebr. Rettberg GmbH is your your reliable partner for laboratory glassware, supplies, and equipment. With decades of experience, we supply companies, research institutions, and universities with high-quality products. LabStore Fast 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 Woulfe 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 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 Full Product Range | Lab Catalog Access to over 150,000 laboratory products from the association catalog! ✓ Comprehensive product range Over 150,000 products for laboratory and research

Kontaktieren Sie Rettberg für Fragen zu Laborbedarf, Laborglas und Serviceleistungen. Unser Team berät Sie persönlich und kompetent – telefonisch, per E-Mail oder über das Kontaktformular. connect now Contact Do you have questions about our products, need individual advice, or a specific quote? Our team is here to help with expertise and many years of experience. Contact us – we look forward to hearing from you. Contact Gebr. Rettberg GmbH | Göttingen Rudolf-Wissell-Str. 17 37079 Göttingen +49 (0)551 / 50 50 3-12 info@rettberg.biz 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! Contact person Our experienced team is here to answer your questions about products, orders, and technical solutions. Contact us directly – we're happy to help. Jan Rettberg Managing Director T : +49 551/50503-0 jan.rettberg@rettberg.biz Claudia Möbs Sales & Service T : +49 551/50503-16 claudia.moebs@rettberg.biz Carsten Lichtblau Sales Management & Field Service M : +49 151/59076534 carsten.lichtblau@rettberg.biz Matthias Görres Procurement T : +49 551/50503-15 matthias.goerres@rettberg.biz Stefan Stankiewicz Sales & Export T : +49 551/50503-12 stefan.stankiewicz@rettberg.biz Susanne Rettberg Accounting & Finance T : +49 551/50503-22 accounting@rettberg.biz

Hersteller von Laborglasgeräten und B2B-Vollversorger für Laborbedarf, Laborgeräte, Sicherheit und Sonderanfertigungen für Forschung und Industrie. Rettberg – Precision in Glass, Excellence in Laboratory Solutions Your partner for precision laboratory glassware , equipment, and comprehensive safety solutions About Us Gebr. Rettberg GmbH is an owner-managed company with extensive experience in the laboratory sector. As a manufacturer of high-quality laboratory glassware and a trusted partner, we offer companies in research, industry, and technology a comprehensive product range. Our aim is to sustainably support laboratory processes through high-quality products, expert advice, and efficient procurement. Reliability, precision, and partnership are central to everything we do. Learn more Our core competencies Manufacture of laboratory glassware 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. Laboratory equipment We supply a comprehensive selection of laboratory equipment for research, industry, and technology. We partner with leading manufacturers to deliver reliable technology and practical solutions for everyday laboratory use. Laboratory Supplies & Safety 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 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 Topic Select topic Company First name Last name Address Email Message Thank you for your message! Send 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 Rettberg Play Video Facebook Twitter Pinterest Tumblr Copy Link Link Copied

Starten Sie Ihre Karriere bei Rettberg. Informieren Sie sich über offene Jobs in einem spezialisierten Unternehmen für Laborbedarf und Laborglas mit persönlicher Atmosphäre und langfristiger Perspektive. 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: Office Administrator (m/f/d) – Part-time 30 hours/week Your Responsibilities Processing daily correspondence via email and telephone Supporting customer service and order processing Maintaining and managing master data Preparing and creating quotes, invoices, and other documents General administrative and organizational tasks Close collaboration with other departments Your Profile Completed commercial training or comparable qualification Structured, diligent, and reliable working style Confident use of MS Office (Word, Excel) Communicative, team-oriented, and service-minded Enjoy diverse tasks in a familiar environment We Offer Permanent part-time position with 30 hours/week Secure workplace with short decision-making processes Fair compensation and valued work environment Pleasant working atmosphere in an experienced team Opportunities for professional development Flexible working hours and partial home office by arrangement Application We look forward to receiving your application! Please send your documents with CV to: jobs@rettberg.biz

Informationen zum Datenschutz, zur Verarbeitung personenbezogener Daten und zu Ihren Rechten bei der Gebr. Rettberg GmbH. Privacy Policy Protecting your personal data is important to us. The following information provides an overview of what happens to your personal data when you visit our website. Data processing on this website is carried out by the website operator. The responsible party within the meaning of data protection laws is Gebr. Rettberg GmbH, [insert address], telephone [phone number], email info@rettberg.biz . The responsible party is the natural or legal person who, alone or jointly with others, decides on the purposes and means of processing personal data. This website is operated using the website builder Wix.com Ltd., 40 Namal Tel Aviv St., Tel Aviv 6350671, Israel. Wix stores data on servers in the European Union, the USA, and Israel. The European Union has issued an adequacy decision for Israel. Further information on data protection at Wix can be found at https://de.wix.com/about/privacy . The processing of personal data is based on the General Data Protection Regulation (GDPR), in particular on the basis of Article 6(1)(a) GDPR (consent), Article 6(1)(b) GDPR (contract or pre-contractual measures), and Article 6(1)(f) GDPR (legitimate interest). Personal data is stored only as long as is necessary to fulfill the respective purpose or as required by statutory retention periods. When you visit this website, Wix automatically collects data in so-called server log files. This includes, among other things, the browser type and version used, the operating system, the referrer URL, the IP address, and the date and time of the server request. This data is used for the technical provision of the website and for system security and is not combined with other data sources. When you submit inquiries to us via our contact or quote request form, your information, including the contact details you provide, will be stored to process your request and for any follow-up questions. Specifically, we process your first name, last name, email address, subject, and message. This processing is based on Article 6(1)(b) GDPR. If a newsletter is offered on the website and you subscribe to it, your email address will be used exclusively for sending the relevant information. You can withdraw your consent at any time. This processing is based on Article 6(1)(a) of the GDPR. If you do not subscribe to the newsletter, this section can be omitted. Our website uses cookies. Cookies are small text files that are stored on your device. We use technically necessary cookies, which are essential for the website to function. Optional cookies, such as those used for analytics, are only set with your explicit consent. You can manage cookies via the Wix cookie banner. The legal basis for this is Article 6(1)(a) GDPR in conjunction with Section 25 TTDSG. If analytics or tracking tools are used, this only occurs after prior consent has been obtained via the cookie banner. Currently, no further tracking tools are used without consent. You have the right to request information about your stored personal data, to correct inaccurate data, to have your data deleted, to restrict processing, to data portability, and to object to processing at any time. You also have the right to lodge a complaint with the competent data protection supervisory authority. Many data processing operations are only possible with your explicit consent. You can revoke this consent at any time informally by email. The legality of the data processing carried out until the revocation remains unaffected. We implement appropriate technical and organizational security measures to protect your data against loss, destruction, manipulation and unauthorized access. This privacy policy is currently valid and was last updated on January 20, 2026. Changes due to legal or technical adjustments are reserved.

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 conditions apply to all offers and contracts of Gebr. Rettberg GmbH for deliveries and services. By accepting these conditions without objection, they are expressly approved. Deviating General Terms and Conditions of the customer are hereby expressly rejected. They shall not become part of the contract even if they are not expressly rejected in individual cases. Conclusion of Contract / Offer All offers from Gebr. Rettberg GmbH are subject to change. Orders are only binding for Gebr. Rettberg GmbH if Gebr. Rettberg GmbH confirms them or fulfills them by delivering the goods. Changes and oral agreements only become effective when Gebr. Rettberg GmbH confirms them in writing. Offers from Gebr. Rettberg GmbH that do not contain an acceptance period may be revoked by Gebr. Rettberg GmbH if the customer's written acceptance is not received by Gebr. Rettberg GmbH within 3 weeks of the offer date. The documents belonging to the offer/contract as well as catalog and brochure information such as illustrations, drawings and dimensions are only approximately authoritative and are understood with the usual tolerances (e.g. of the glass tubes and hollow bodies used for production). Drawings and illustrations remain the property of Gebr. Rettberg GmbH. Gebr. Rettberg GmbH reserves the right to make changes to the products in the course of further development without prior notice, provided this is reasonable for the customer. Price / Shipping / Packaging / Scope of Delivery / Delivery Quantity All prices are in euros, EXW (Incoterms 2020), plus statutory domestic VAT or comparable foreign tax and packaging costs. Customers within the EU are obliged to provide their VAT identification number. Gebr. Rettberg GmbH selects the packaging for the delivery items and charges the customer for the packaging. If the customer requests shipment, this is done at the customer's expense and risk. The customer assumes responsibility for disposal of the packaging unless Gebr. Rettberg GmbH reclaims the packaging. Delivered equipment and tools are assembled by the customer. Deviations in the delivery quantity of up to 10% (more or less) compared to the order cannot be ruled out due to production and must be accepted by the customer. Delivery Period / Force Majeure The stated delivery periods are non-binding due to the dangers and special characteristics of glass processing. They begin upon receipt of all documents and any components to be provided by the customer, or upon final technical clarification, and end with the dispatch of the delivery for shipment. Compliance with the delivery period presupposes fulfillment of the customer's contractual obligations, including those from previous transactions independent of the current order. The delivery period is extended appropriately in the event of measures within the framework of industrial 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, delays in the delivery of essential materials, insofar as such obstacles demonstrably have a significant influence on the completion or delivery of the delivery item. This also applies if the circumstances occur with subcontractors of Gebr. Rettberg GmbH. The aforementioned circumstances are not attributable to Gebr. Rettberg GmbH even if they arise during an already existing delay. Gebr. Rettberg GmbH will notify the customer of the beginning and end of such obstacles as soon as possible in important cases. Partial deliveries are permitted within the delivery periods specified by Gebr. Rettberg GmbH, provided this does not result in any disadvantages for the customer. If Gebr. Rettberg GmbH has exceptionally undertaken an installation obligation, deadlines promised by Gebr. Rettberg GmbH only have to be met if the delivery items to be installed are provided by the customer in good time. Should Gebr. Rettberg GmbH culpably exceed an agreed delivery period, delivery delay is only given after setting a grace period of 4 weeks. After this 4-week period has expired without result, the customer may withdraw from the contract. In the event of delivery delay, except in cases of intent or gross negligence, Gebr. Rettberg GmbH's liability for damage caused by delay is excluded. Payment / Due Date / Payment Security / Payment Default Payment is made before delivery. Other payment terms and cash discounts may be agreed upon in individual cases. Payment default begins upon due date. From the due date, every amount owed is subject to interest at 9% above the base rate of the European Central Bank. The assertion of further damages is not excluded. If partial payment is agreed and the customer defaults on one installment, the remaining amount is immediately due. If doubts arise about the customer's ability to pay, Gebr. Rettberg GmbH is entitled to demand, at its discretion, either cash payment before delivery, payment before production or comparable security deposits or to withdraw from the contract. Confidentiality The customer must keep confidential information of Gebr. Rettberg GmbH (e.g. drawings, product developments, intellectual property) secret and in particular not pass it on to third parties. Cancellation Costs If the customer withdraws from an order without justification, Gebr. Rettberg GmbH may, without prejudice to the possibility of asserting a higher actual damage, demand 15% of the sales price, but at least €15, for the costs incurred in processing the order and for lost profit. The customer reserves the right to prove lesser damage. This does not involve Gebr. Rettberg GmbH waiving claims provided for by law. Warranty The customer may only rely on property guarantees if Gebr. Rettberg GmbH has expressly and in writing given them to him. The customer must check the goods for defects immediately upon receipt within the scope of commercial due diligence and, if applicable, complain about existing defects immediately in writing. In the case of hidden defects, a written complaint must be made immediately after discovery. Gebr. Rettberg GmbH is only liable for defects that demonstrably already existed when the goods were dispatched. Gebr. Rettberg GmbH is basically liable for defects for a period of one year. Third-party products that are resold by Gebr. Rettberg GmbH without its own processing are excluded. The related claims of Gebr. Rettberg GmbH against the third-party manufacturer are assigned to the customer. If there is a defect that has been complained about in the correct form and within the deadline, Gebr. Rettberg GmbH is entitled to choose between replacement or substitute performance and defect removal through repair, improvement or rectification within the framework of subsequent performance. This liability does not extend to normal wear and tear. Gebr. Rettberg GmbH does not assume any warranty for custom-made products according to customer specifications. If there is a legal defect, Gebr. Rettberg GmbH is entitled to modify the delivery item in a manner reasonable for the customer in order to eliminate the legal defect. The customer only has claims for damages instead of performance if there is an intentional or grossly negligent breach of duty by Gebr. Rettberg GmbH. If modification is not possible under economically reasonable conditions or within a reasonable period in the case of a legal defect, both the customer and Gebr. Rettberg GmbH are entitled to withdraw from the contract. Insofar as Gebr. Rettberg GmbH assumes a durability guarantee, the customer must prove that the material defect existed when the risk passed, unless this is unreasonable for the customer in individual cases. Otherwise, the provisions mentioned under "Liability" also apply to the 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 is liable without limitation. Liability In the event of intent, gross negligence on the part of legal representatives or executives and in the event of culpable breach of essential contractual obligations by these or other employees, Gebr. Rettberg GmbH is liable in accordance with statutory provisions. Gebr. Rettberg GmbH is not liable for the breach of non-essential contractual obligations by other employees. Gebr. Rettberg GmbH is not liable for atypical and therefore hardly foreseeable damages. The Product Liability Act applies without restriction to claims under the Product Liability Act. Claims for damages arising from positive breach of contract and consequential damages, in particular damages arising from the goods supplied by Gebr. Rettberg GmbH to the customer or third parties through storage, transport, processing or further processing and resale, are excluded. Claims for damages arising from tort only exist in the case of intentional or grossly negligent causation. This also applies to acts by vicarious agents of Gebr. Rettberg GmbH. Gebr. Rettberg GmbH is liable within the framework of statutory provisions in the event of culpable injury to life, body and health. When commissioning, the customer must satisfy himself of the perfect condition of the goods. The customer is responsible for the professional and proper use of the goods. If fault is a prerequisite for a customer's claim, the customer bears the burden of proof, unless the law provides otherwise and the burden of proof is also unreasonable for the customer. Gebr. Rettberg GmbH can only carry out repairs sent in on devices of its own manufacture. Gebr. Rettberg GmbH will carry out repairs with the greatest care. However, due to the special properties of glass as a material, Gebr. Rettberg GmbH excludes assuming a guarantee for the success of the repair. Such repair is expressly carried out at the sender's risk. Gebr. Rettberg GmbH assumes no liability or obligation to replace damage or loss of the subject of repair. The customer is liable for culpable injury to life, body and health of Gebr. Rettberg GmbH employees and for damage to Gebr. Rettberg GmbH's buildings and facilities from the processing of repairs (e.g. due to contamination or improperly packaged broken glass parts). Retention of Title Gebr. Rettberg GmbH reserves ownership of all delivery items until the complete payment has been received irrevocably and is entitled to withdraw from the contract if the customer is in default with payment. The retention of title also extends to claims that Gebr. Rettberg GmbH subsequently acquires against the customer in connection with the delivery items. If Gebr. Rettberg GmbH has other claims against the customer from other legal transactions, the retention of title exists until these claims are also settled. The customer is entitled to resell the delivery items in the ordinary course of business; he hereby assigns all claims 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 statutory domestic VAT or comparable foreign tax) to Gebr. Rettberg GmbH, regardless of whether the resale takes place before or after processing of the goods subject to retention of title. The customer is authorized to collect the claims from the third party as long as he fulfills his payment obligations to Gebr. Rettberg GmbH and insolvency proceedings have not been opened over his assets. The authority of Gebr. Rettberg GmbH to collect the claim itself remains unaffected. However, Gebr. Rettberg GmbH undertakes not to collect the claims as long as the customer properly fulfills his payment obligations, is not in default with payment and insolvency proceedings have not been opened over his assets. If this is the case, however, Gebr. Rettberg GmbH may demand that the customer disclose the assigned claim and its debtor, provide all information required for collection, hand over the associated documents and notify the debtors (third parties) of the assignment. Processing and treatment are carried out for Gebr. Rettberg GmbH. In the event of connection, mixing or blending with other goods not belonging to Gebr. Rettberg GmbH, Gebr. Rettberg GmbH acquires co-ownership of the new item according to the ratio of the value of the goods supplied by Gebr. Rettberg GmbH to that of the other goods at the time of connection, 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 not pledge the delivery items or transfer them as security. In the event of third-party access, in particular in the event of seizure, the customer must notify Gebr. Rettberg GmbH immediately in writing and immediately point out to the third party that Gebr. Rettberg GmbH has retention of title. The customer bears all costs that must be incurred to lift the access or retrieve the goods or delivery items. The customer has the obligation to keep the goods or delivery items in proper condition during the retention of title and as long as the customer has not yet resold them in the ordinary course of business and to have all maintenance work provided for by Gebr. Rettberg GmbH and necessary repairs carried out immediately by Gebr. Rettberg GmbH or by a company recognized by Gebr. Rettberg GmbH for the care of the goods or delivery items. In addition, the customer must mark the goods or delivery items as property of Gebr. Rettberg GmbH as long as he has not yet resold them in the ordinary course of business and transferred possession. Obligation to Cooperate with Advice, Use and Processing Instructions Gebr. Rettberg GmbH requests express notification if the customer bases his own behavior on advisory and application-technical instructions whose effects are not obviously recognizable to Gebr. Rettberg GmbH. The information provided by Gebr. Rettberg GmbH or its employees on processing and application possibilities of products, technical advice and other information is given to the best of our knowledge, but is non-binding and is given to the exclusion of any liability. Foreign Trade Regulations Gebr. Rettberg GmbH is responsible for compliance with German regulations insofar as products manufactured in Germany are exported. Compliance with and implementation of the relevant foreign trade regulations (e.g. import licenses, foreign exchange transfer permits, etc.) and other laws applicable outside the Federal Republic of Germany fall exclusively within the customer's area of responsibility. Export Regulations The buyer undertakes to comply with the valid export regulations of Germany, as well as EU and US export regulations when exporting goods. This applies in particular to goods of American origin. The buyer must comply with these regulations even if his court seat and/or the delivered goods are located outside the spatial scope of the aforementioned export regulations. Protective Rights For the products, constructions, forms, 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), Gebr. Rettberg GmbH reserves all industrial property and copyrights. Offers, illustrations, including in schematic form, and all information serving product design may not be reproduced or passed on to third parties without the express consent of Gebr. Rettberg GmbH. Upon request, all documents must be returned to Gebr. Rettberg GmbH. The customer is responsible for ensuring that, due to his instructions and specifications regarding forms, colors, designs, special features, etc. of goods (in particular apparatus to be manufactured), third-party protective rights are not infringed. The customer will indemnify Gebr. Rettberg GmbH against all third-party claims for infringement of the aforementioned industrial property rights, including all judicial and extrajudicial costs, and support them in any legal dispute if requested. Limitation Period All claims of the customer – for whatever legal reasons – become statute-barred in one year. The statutory periods apply to intentional or fraudulent behavior and to 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 supplied software including its documentation. It is provided for use on the delivery item intended for this purpose. Use on more than one system is prohibited. The customer may only reproduce, edit, translate or convert the software from object code to source code to the extent permitted by law (§§ 69 a ff. UrhG). The customer undertakes not to remove manufacturer information, in particular copyright notices, or to change them without the prior express consent of Gebr. Rettberg GmbH. All other rights to the software and documentation, including copies, remain with Gebr. Rettberg GmbH or the software supplier. The granting of sublicenses is not permitted. Place of Performance , Jurisdiction and Applicable Law The business relationship is governed exclusively by the law of the Federal Republic of Germany. The UN Convention on Contracts for the International Sale of Goods (CISG) does not apply. The place of performance for all deliveries and services as well as the place of jurisdiction is Göttingen. In addition, Gebr. Rettberg GmbH is entitled to assert its own claims at the customer's place of jurisdiction at its discretion. The customer is not permitted to file a counterclaim before courts other than the court of action or to set off his claim against the action claim before courts other than the court of action. Severability Clause Should a provision be or become invalid, the validity of the other provisions shall remain unaffected. Language These General Terms and Conditions for Deliveries and Services of Gebr. Rettberg GmbH are written in German. All documents (e.g. order confirmations, delivery papers, invoices, payment transactions, etc.) are also written in German. In case of doubt, the German text is authoritative.

Entdecken Sie die Messen und Veranstaltungen, auf denen Rettberg vertreten ist. Informieren Sie sich über aktuelle Termine, Fachmessen und persönliche Austauschmöglichkeiten rund um Laborbedarf und Laborglas. 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. 🔬LAB SUPPLIES & 🧪CHEMISTRY LECTURER'S CONFERENCE 2026 🧪 CHEMISTRY LECTURERS' CONFERENCE 2026 The Chemiedozententagung is the central forum for university lecturers in chemistry in German-speaking countries. Here we present our solutions for research and teaching. University of Duisburg-Essen 📍 Essen 📅 Monday, March 2, 2026, 11:00 AM to Wednesday, March 4, 2026, 3:00 PM 🔬 LAB SUPPLY 2026 Germany's leading trade fair for laboratory technology 📍 Hannover 📅 Wednesday, May 20, 2026 Hall/Stand: to be announced 📍 Berlin 📅 Tuesday, June 16, 2026 Hall/Stand: to be announced 📍 Dresden 📅 Tuesday, September 8, 2026 Hall/Stand: to be announced

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 level of comfort and functionality as other users. This is achieved through the technical capabilities of the system used and through assistive technologies. Accessibility measures on this website This website was created in accordance with the guidelines of Web Content Accessibility Guidelines (WCAG) 2.1 – Compliance Level AA designed. The following points, among others, were implemented as part of the accessibility measures: Using the Wix Accessibility Wizard to identify and resolve potential barriers Setting the correct page language Clear and consistent heading structures Logical order of the contents Alternative text for images Color contrasts according to 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 value barrier-free communication. Should you require support or have any 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 are usually by prior appointment. Should you require assistance regarding accessibility during your visit, please contact us in advance so that we can explore individual solutions and, where possible, make appropriate arrangements. Access to our premises and possible 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.

Der Service von Rettberg unterstützt Sie zuverlässig bei Wartung, Reparatur und Kalibrierung von Laborgeräten und Pipetten. Profitieren Sie von fachkundiger Beratung und persönlichem Support für Laborbedarf und Laborglas. 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. Pipette service & calibration Calibration and replacement of pipettes and dispensers from nearly all manufacturers. Testing according to ISO 8655, with optional DAkkS calibration certificate. Repair & Restoration — Laboratory Glass Professional repair and refurbishment of laboratory glassware and components. Preserving functionality and extending the service life of your equipment. Custom-made stainless steel frame construction Design and manufacture of laboratory furniture and racks according to your technical specifications — robust, precise and easy to assemble. Regeneration of ion exchangers Collection in the Göttingen region, regeneration with pure resin, and on-site delivery. Fast turnaround to guarantee consistent demineralized water quality. 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 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!

Rechtliche Informationen und Anbieterkennzeichnung der Gebr. Rettberg GmbH – transparent und gesetzeskonform. Imprint Full company name: Gebr. Rettberg GmbH Legal form: GmbH Address: Rudolf-Wissell-Straße 17, 37079 Göttingen, Germany Telephone: +49 (0)551 / 50 50 30 Email: info@rettberg.biz Responsible chamber: Chamber of Skilled Crafts for Hildesheim and South Lower Saxony VAT ID: DE177343680 Tax ID: 20/220/00972 Place of registration: Göttingen District Court Register court: HRB 1475 Managing Director: Mr. Jan Rettberg