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Our testing facilities for NSS salt spray tests, alternating corrosion tests, climate tests, and customer-specific tests for industry and research. Testing standards and their significance in the field of corrosion Testing standards in the field of corrosion testing are standardized procedures according to which materials, coatings, or components are tested for their corrosion resistance under defined conditions. They ensure that tests are comparable, reproducible, and internationally recognized. Purpose of testing standards Uniform testing methods for all users Comparability of results between manufacturers, customers and testing laboratories Quality assurance in the development, production and approval of products Excerpt from the testing standards in the field of corrosion Search Enter the desired testing standard here to receive a suggestion for a suitable system. DIN EN ISO 9227 Norm Beschreibung Prüfzeit °C / % rF DIN EN ISO 9227 NSS Salznebel mit 5% NaCl kontinuierlich 35 ± 2°C (alte Norm DIN 50 021 SS) DIN EN ISO 9227 ASS Salznebel mit 5% NaCl (pH = 3,3) kontinuierlich 35 ± 2°C (alte Norm DIN 50 021 ESS) DIN EN ISO 9227 CASS Salznebel mit 5% NaCl und Kupferchlorid (pH = 3,3) kontinuierlich 50 ± 2°C (alte Norm DIN 50 021 CASS) DIN EN ISO 6270-2 Norm Beschreibung Prüfzeit °C / % rF DIN EN ISO 6270-2 CH Kondenswasser Konstantklima kontinuierlich 40 ± 3°C (alte Norm DIN 50 017 KK) DIN EN ISO 6270-2 AT Kondenswasser Konstantklima 8 h 40 ± 3°C (alte Norm DIN 50 017 KTW) Heizstopp mit Bodenwasser ohne Belüftung 16 h DIN EN ISO 6270-2 AHT Kondenswasser Konstantklima 8h 40 ± 3°C (alte Norm DIN 50 017 KFW) Belüftung ohne Bodenwasser 16h 18 - 28°C ISO 22479 Norm Beschreibung Prüfzeit °C / % rF ISO 22479 Zyklische Korrosionsprüfungen 40 ± 3°C (alte Norm DIN 50 018 +DIN EN ISO 6988) mit Schadgas Kodenswasser 8 h Konstantklima mit SO² mit Belüftung 16 h 18 - 28°C DIN EN ISO 11997-1 Zyklus B Norm Beschreibung Prüfzeit °C / % rF DIN EN ISO 11997-1 Zyklus B Zyklische Korrosionsprüfung (alte Norm VDA 621-415) Salznebel nach DIN EN ISO 9227 NSS 24 h (1 Tag) 35 ± 2°C 4 Zyklen nach DIN EN ISO 6270 AHT 96 h (4 Tage) 40°C / (18 - 28°C) Belüftung (typisch 23°C / 50%r.F. + 20%) 48 h (2 Tage) 23 ± 2°C PV 1210 Norm Beschreibung Prüfzeit °C / % rF PV 1210 Zyklische Korrosionsprüfung Salznebel nach DIN EN ISO 9227 NSS 4 h 35 ± 2°C Normklima 4 h 23°C / 50 %r.F. Kondenswasser nach DIN EN ISO 6270-2 CH 16 h 40 ± 2°C Nach 5 Tagen: Normklima 48 h 23°C / 50 %r.F. DIN EN 60068-2-11 Norm Beschreibung Prüfzeit °C / % rF DIN EN 60068-2-11 Salznebel mit 5% NaCl kontinuierlich 35 ± 2°C (alte Norm IEC 68-2-11) DIN EN 60068-2-52 Norm Beschreibung Prüfzeit °C / % rF DIN EN 60068-2-52 Zyklische Korroionsprüfung (alte Norm IEC 68-2-52) Schärfegrad 1 Salznebel (5% NaCl) 2 h 35 ± 2°C Feuchtelagerung 6 Tage 22 h 40 ± 2°C / 93%r.F. Schärfegrad 2 Salznebel (5% NaCl) 2 h 35 ± 2°C Feuchtelagerung 22 h 40 ± 2°C / 93%r.F. Schärfegrad 3 Salznebel (5% NaCl) 2 h 35 ± 2°C Feuchtelagerung 22 h bis 1 Tag 40 ± 2°C / 93%r.F. Schärfegrad 4 2 Zyklen nach Schärfegrad 3 Schärfegrad 5 4 Zyklen nach Schärfegrad 3 Schärfegrad 6 8 Zyklen nach Schärfegrad 3 Schärfegrad 7 Salznebel (5% NaCl) 2 h 35 ± 2°C Warmtrocknung 4 h 60 ± 2°C <= 30%r.F. Feuchtelagerung 2 h 50 ± 2°C >= 95%r.F. Schärfegrad 8 wie Schärfegrad 7 jedoch angesäuerte Salzlösung SWAAT / PV 1208 Norm Beschreibung Prüfzeit °C / % rF SWAAT / PV 1208 Zyklische Korrosionsprüfung ASTM G85 A3 Salznebel (5% NaCl) (pH = 2,8 bis 3) 30 min 50 ± 2°C Heizen ohne Salznebel 90 min 50 ± 2°C DIN EN ISO 11997-3 Norm Beschreibung Prüfzeit °C / % rF DIN EN ISO 11997-3 Zyklische Korroionsprüfung (alte Norm DIN 55635) Zyklus A Salznebel (1% NaCl) 3 h 35 ± 2°C Temperatur (35°C - 50°C) 21 h 35 - 50°C / 50 - 95%r.F. mit Feuchtewechsel 50-90 %r.F. Zyklus B Temperatur (35°C - 50°C) 24 h 35 - 50°C / 70 - 95%r.F. mit Feuchtewechsel 70-95 %r.F. Zyklus C Tiefkühler (-15°C bis +50°C) 9 h - 15°C Temperatur (35°C - 50°C) 15 h 35 - 50°C / 70 - 95%r.F. mit Feuchtewechsel 70-95 %r.F.

Over 75 years of experience in corrosion testing technology – from the first testing facilities to today's innovative stainless steel and polypropylene testing rooms.

HK front-loading salt spray chamber for DIN EN ISO 9227 NSS tests – reliable salt spray testing in durable polypropylene test chambers for simple to complex corrosion testing. Corrosion testing device Frontloading disc Our corrosion testing system panels are made of transparent PMMA and allow a clear view into the testing chamber at all times while offering high resistance. Test room Our plastic test chambers, made from high-quality polypropylene, offer maximum resistance to chemicals and moisture. They are robust, durable, and ideal for safe and reliable testing environments. frame construction Our frame construction consists of V2A stainless steel profiles and offers excellent protection against corrosion. Our systems are clad with aluminum composite panels, which are available in various colors. steering Our control system impresses with its ease of use, precise regulation, integrated measurement data acquisition, and maximum reliability. It enables intuitive operation and ensures efficient, safe testing processes. Interested? Testing standards The following list provides a small selection of the testing standards that can be implemented. Is the testing standard you need not included? Contact us and we will find a suitable solution. Regarding the testing standards DIN EN ISO 9227 NSS/AASS/CASS DIN EN ISO 6270-2 CH/AT/AHT DIN EN ISO 11997-1 and 2 PV 1210 PV 1078 DIN EN 60068-2-52 severity level 1-6 Our HK series The HK series is designed as a front-loading system and is conveniently loaded from the front. It is particularly suitable for test specimens that are frequently changed, as well as for applications where quick and direct access to the test chamber is required. Your advantages at a glance: Convenient front loading for quick test item changes Optimal accessibility of the test room for assembly and cleaning ergonomic working without lifting or crane technology ideal for serial testing and high testing frequencies clear view and easy control of the examinees during the examination Space-saving integration into existing laboratory and production environments The HK series stands for efficient front loading, high ease of use and reliable corrosion testing technology in daily use. Datasheet Salt spray Spray function of a brine solution with test chamber heating Condensation* Water bath with test chamber heating for condensation formation up to 50°C Temperature* Temperature control from room temperature up to 70°C Humidity* Humidity control from 40 to 95 RH. *Optional with test standard extension. The basic configuration can be mapped to DIN EN ISO 9227 NSS.

FAQs about our corrosion testing systems – answers about testing equipment, NSS tests, environmental simulation, service, and technical solutions for industry and research. Frequently asked questions about corrosion testing systems Selecting a suitable corrosion testing system requires a fundamental understanding of the terminology, test types, and application areas used. Different materials, test requirements, and standards each place specific demands on the equipment employed. This FAQ is aimed at users and decision-makers who want to gain an overview and better understand the interrelationships. The terms and principles explained here are intended to help clearly define requirements, classify differences between testing systems, and select the appropriate product for the respective application. Decision aid: Selecting the right corrosion testing equipment 1. Standards & Testing Requirements Which standard(s) do I have to meet? e.g. B. DIN EN ISO 9227 (NSS/AASS/CASS), VDA, ASTM, OEM specifications What types of tests do I need? Salt spray, condensation, fluctuating climate, cyclical testing, special tests How reproducible and compliant with standards must the results be (auditability)? 2. Test Item & Capacity Which components are being tested? Size, weight, geometry, material How many samples can be processed simultaneously (number of samples / throughput)? How often is testing performed (occasionally, regularly, as part of a series)? 3. Plant size & modularity What chamber size makes sense – today and in the future? Can the system be expanded or converted (e.g., from NSS to cyclic)? Does the system fit in the available space (door width, ceiling height, installation location)? 4. Operation & Automation How easy is it to use in everyday life? Are there automated programs, recipe management, and user rights? Documentation & data export (e.g. for quality assurance, audits, customer reports)? 5. Quality, reliability & maintenance What materials are used (corrosion resistance of the system itself)? How maintenance-intensive is the system? Calibration, spare parts, long-term availability? 6. Service & Support Is there fast service and competent contact persons? Response times, maintenance contracts, training? Manufacturer experience specifically in the field of corrosion testing? 7. Costs & Efficiency Investment costs vs. scope of services Operating costs (media consumption, energy, maintenance) Lifespan and Total Cost of Ownership (TCO) In short: Standard → Test item → Capacity → Future-proofing → Operation → Service → Costs

Metal block thermostats – precise temperature control for laboratory, industrial, and testing applications. Reliable, durable, and easy to use. Our portfolio

Warehouse sale – high-quality corrosion testing systems heavily discounted and available immediately. Fast delivery, top quality, and tested testing equipment. Warehouse sale – Heavily discounted systems with short delivery times In our warehouse sale, we offer selected equipment at particularly attractive prices. Thanks to immediately available stock, you benefit not only from significantly reduced prices but also from very short delivery times. Ideal for anyone who needs high-quality testing equipment quickly and cost-effectively. Feel free to contact us for our current offers – it's worth it! -25% In stock: 1 piece Inquire now 1000-TL Configuration selectable from: Salt spray condensation Switch test -25% In stock: 1 piece Inquire now ClimaCORR CC 1000-TL FR Datasheet -10% In stock: 1 piece Inquire now KV-T 3000 Datasheet

Sales of corrosion testing systems – individual consultation, customized testing equipment, and reliable solutions for industry, research, and development. Our worldwide sales Thanks to our international sales network, we are represented in numerous countries and always close to our customers. Whether in Europe or the rest of the world – we ensure that our products and services are reliably available worldwide and offer the same high quality standard everywhere. Domestic sales Köhler-VLM Testing Technologies GmbH info@koehler-vlm.de +49 (0) 2942 98492 0 Mühlenbreite 17, 59590 Geseke, Germany www.koehler-vlm.de ThermoTEC Weilburg GmbH & Co. KG info@ttwe.de +49 (0) 6471-6293-0 Friedenbachstraße 18, D-35781 Weilburg www.ttwe.de Distribution in Europe Amitronic Oy sales@amitronic.fi +358 (0) 10 231 8800 Tarmontie 2, 15860 Hollola, Finland www.amitronic.fi BARTELT Gesellschaft mbH. office@bartelt.at +43 (0) 316 475328 0 Neufeldweg 42, 8010 Graz, Austria www.bartelt.at Brant Industry infos@brant-industrie.fr +33 (0) 3 20 50 45 53 Place de la Republique, Paris, France www.brant-industrie.fr Citrotek ApS salg@citrotek.dk +45 4824 3656 Jespervej 50A, 3400 Hillerød, Denmark www.citrotek.dk Climatronix bvba Belgium, Netherlands and Luxembourg info@climatronix.eu +32 9 329 00 29 Honderdweg 10, 9230 Wetteren, Belgium www.climatronix.org CTS Climate Test Systems AB info@cts.se +46 8 388292 DÄCKIA JÄRFÄLLA, Datavägen 5, 175 43 Järfälla, Sweden www.cts.se CLIMATE TEST SPÓŁKA JAWNA klimatest@klimatest.eu +48 71 354 06 80 ul. Obrońców Poczty Gdańskiej 5C, 52 – 204 Wrocław www.klimatest.eu Meri.ch AG info@meri.ch +41 71 747 49 49 Rosenbergsaustrasse 7, 9434 Au, Switzerland www.meri.ch Worldwide distribution Euroair, SA de CV euroair@gemtel.com.mx +52 222 246 63 70 72440 Puebla, Pue. Mexico - Hedef Kimya İth. Her. San. Ve Tic. Ltd. Şti hedef@hedefkimya.com +90 216 469 28 69 Kelebek Sk. No:02, Esentepe, 34846 Kartal/İstanbul, Türkiye www.hedefkimya.com Votech (China) Company Limited info@votech-china.com +852 2389 5558 418 Kwun Tong Rd, Kwun Tong, Hong Kong www.votech-group.com

HK toploading salt spray chamber for DIN EN ISO 9227 NSS tests – reliable salt spray testing in durable polypropylene test chambers for simple to complex corrosion testing. Corrosion testing device Toploading Our HK series Top-loading systems of the HK series are loaded from above and are particularly suitable for test items with higher weight, larger volume, or irregular geometry. The vertical loading allows for ergonomic and safe insertion of test pieces, often with the aid of cranes or lifting equipment. Advantages of toploading systems: simple and safe loading of heavy or bulky test specimens optimal use of space in the test room robust design for industrial applications High flexibility for different test specimen dimensions Minimal space required in front of the unit, as no side door is needed. Toploading systems are therefore particularly suitable for demanding testing tasks in corrosion and environmental simulation. Datasheet Salt spray Spray function of a brine solution with test chamber heating Condensation* Water bath with test chamber heating for condensation formation up to 50°C Temperature* Temperature control from room temperature up to 70°C Humidity* Humidity control from 40 to 95 RH. *Optional with test standard extension. The basic configuration can be mapped to DIN EN ISO 9227 NSS. frame construction Our frame construction consists of V2A stainless steel profiles and offers excellent protection against corrosion. Our systems are clad with aluminum composite panels, which are available in various colors. hood Our hoods for corrosion testing systems are made of transparent acrylic and allow a clear view into the test chamber at all times while offering high resistance. Test room Our plastic test chambers, made from high-quality polypropylene, offer maximum resistance to chemicals and moisture. They are robust, durable, and ideal for safe and reliable testing environments. steering Our control system impresses with its ease of use, precise regulation, integrated measurement data acquisition, and maximum reliability. It enables intuitive operation and ensures efficient, safe testing processes. Interested? Testing standards The following list provides a small selection of the testing standards that can be implemented. Is the testing standard you need not included? Contact us and we will find a suitable solution. Regarding the testing standards DIN EN ISO 9227 NSS/AASS/CASS DIN EN ISO 6270-2 CH/AT/AHT DIN EN ISO 11997-1 and 2 PV 1210 PV 1078 DIN EN 60068-2-52 severity level 1-6

The latest news from the field of corrosion testing technology – news about testing equipment, standards, innovations, and developments in industry, research, and testing technology. Our products you can touch We regularly present our products at trade fairs and are there in person to meet you. Take this opportunity to experience our solutions live and talk directly with our experts. We look forward to welcoming you at one of our upcoming trade fairs! Our trade fair dates 10.02.26 LAB SUPPLY The Hague (NL) Event location: Fokker Terminal The Hague (NL) 04.03.26 LAB-SUPPLY Frankfurt Myticket Jahrhunderthalle Frankfurt 28.04.26 LAB-SUPPLY Münster Exhibition and Congress Center Halle Münsterland 16.06.26 LAB SUPPLY Vienna (AUT) VIECON - Vienna Congress & Convention Center 12.05.26 LAB SUPPLY Vienna (AUT) VIECON - Vienna Congress & Convention Center 03.11.26 LAB-SUPPLY Hamburg MesseHalle Hamburg-Schnelsen

Your partner for high-quality corrosion testing systems: ISO 9227 salt spray tests, cyclic corrosion tests, and standard and custom salt spray equipment for industry, research, and development. Corrosion in sight Quality inside We are manufacturing the technology for tomorrow's quality assurance . For over 75 years, we have stood for competence, precision and reliability in corrosion testing technology. As an experienced expert in corrosion testing systems and salt spray chambers, we combine decades of know-how with innovative technology – for durable, standard-compliant and practical testing solutions that our customers worldwide rely on. Are you looking for a specific testing standard or product? Then you can search for it using this button. Search Corrosion testing systems Whether top-loading or front-loading, compact systems or walk-in installations – we manufacture corrosion testing systems precisely to your specifications. We offer standardized sizes as well as customized solutions tailored to your individual needs. Our portfolio SALT FOG SYSTEMS Metal block thermostats & evaporators Metal block thermostats and evaporators are essential components in state-of-the-art laboratories and testing facilities. Special samples? No problem. We manufacture according to your specifications. Our portfolio LABORATORY SUPPLIES Köhler, VLM and external systems We offer a comprehensive service for our corrosion testing systems – from maintenance and overhauls to calibration. Simply contact us and we'll be happy to assist you. For the service SERVICE Normal use Out of test panels in stock? No problem. We'll deliver the necessary supplies so you can continue testing the reproducibility of your corrosion testing system. Our portfolio TEST SHEETS Salt The most important component of a corrosion test is sodium chloride. We supply our certified SaliCORR® in three different grades and four packaging sizes. Our portfolio SODIUM CHLORIDE Why are corrosion testing systems and salt spray chambers needed? Many products and their materials are freely exposed to today's environmental influences. Since product quality assurance and reproduction play an increasingly important role, very high demands must also be placed on testing systems. To accelerate the corrosion process, so-called corrosion testing systems are used. These systems can depict the progression of corrosion in fast motion using various methods. To help with decision-making

Careers with us—exciting opportunities in corrosion testing technology, test system development, and environmental simulation. Help shape the future! JOBS FOR THE FUTURE. Unfortunately, we currently have no further job openings. However, we are always open to unsolicited applications. Just get in touch! Apply now

Our partners – strong partnerships with leading companies in testing technology, corrosion testing, and environmental simulation for industry and research. Setting new standards together ThermoTEC Weilburg GmbH & Co. KG and Köhler-VLM Testing Technologies are joining forces and launching a groundbreaking collaboration. Together, they aim to offer customers comprehensive and future-proof solutions for demanding corrosion tests – from planning and state-of-the-art testing technology to reliable all-round service. All from a single source. With over 70 years of experience, Köhler-VLM stands for high-precision and innovative corrosion testing systems made in Germany. The technologically leading systems are precisely tailored to the complex requirements of research, development, and quality assurance, setting standards in terms of accuracy and performance. ThermoTEC, a specialist in environmental simulation for over 30 years, complements this technological expertise with a strong sales and service portfolio. From individual consultation and commissioning to regular maintenance, calibration, and repair – ThermoTEC ensures the long-term performance and reliability of the systems. This partnership creates genuine added value for customers in the automotive industry, coating technology, materials research, and many other sectors: a reliable, comprehensive solution that guarantees maximum process reliability, smooth operations, and sustainable support. The result: maximum efficiency, minimal downtime, and proven quality at the highest level. Extensive information about our partner can be found at www.ttwe.de To our partner