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Contact us – your partner for corrosion testing systems, testing technology, NSS systems, and customized test bench solutions for industry and research. Contact details Location Mühlenbreite 17 59590 Geseke Germany Business hours Monday to Thursday: 7:00 AM - 4:00 PM Friday: 7:00 AM - 1:00 PM e-mail info@koehler-vlm.de phone +49 (0) 2942 98492 0

Our catalogs – comprehensive overview of corrosion testing systems, testing technology, NSS systems, and customer-specific testing solutions for industry and research. Our catalogs Our catalogs offer you a structured and practical overview of our entire portfolio in the field of corrosion testing technology. From compact standard systems to customized solutions, you will find all technical details, equipment variants, and options clearly presented. This allows you to quickly obtain the most important information for your project planning – clear, transparent, and to the point. 2026 Laboratory supplies DE EN 2025 Product Portfolio DE EN 2025 Laboratory Supplies Price List DE EN 2026 KV-T Brochure DE EN

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

KV series made of stainless steel – innovative corrosion testing systems for salt spray testing DIN EN ISO 9227 NSS, cyclic corrosion testing, and customer-specific testing solutions. Precise & durable. Corrosion testing device Toploading Our KV series With the KV series, we have found a way to combine proven quality with an attractive price point. Standardized, practical design allows us to offer short delivery times without compromising on reliability, functionality, or durability. The KV series is designed as a top-loading system and is loaded from above – ideal for heavy, large-volume, or bulky test specimens. The stainless steel test chamber ensures high corrosion resistance, consistent testing conditions, and a long service life. Thanks to modern adhesive joining technology, the KV series does without traditional welds. This reduces potential weak points, increases tightness, and minimizes maintenance. Advantages of the KV series: ergonomic and safe loading from above Durable stainless steel test chamber for reproducible test conditions Adhesive joining technology for high tightness and reduced corrosion risks Robust industrial design for continuous operation efficient use of space with minimal space requirements in front of the system The KV series stands for reliable corrosion testing, modern design and maximum operational safety. 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. Joining technology Our adhesive joining technology enables a permanent, corrosion-resistant bond without thermal or mechanical influence on the components. It ensures high tightness, reduced stresses, and maximum process reliability – ideal for demanding applications in corrosion testing technology. Test room Our test chamber, constructed from special stainless steel, boasts exceptional corrosion resistance, a long service life, and maximum process stability. The smooth surfaces enable rapid heating and cooling times, as well as consistent testing conditions – even under extreme loads. 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

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

Battery test chamber for hazard levels 0–7 – safe testing, customized test systems, and precise test bench solutions for battery safety and research. Corrosion testing device Battery test Security Package I electropneumatic door locking mechanism independent safety temperature limiters Achievable Hazard Level: 0-3 Note: If the gas or liquid (electrolyte) escaping from the cell is flammable, then Hazard Level 5 applies. Security Package II electropneumatic door locking mechanism independent safety temperature limiters Pressure relief via reversible pneumatic valve Achievable Hazard Level: 0-4 Note: If the gas or liquid (electrolyte) escaping from the cell is flammable, then Hazard Level 5 applies. Security Package III electropneumatic door locking mechanism independent safety temperature limiters Pressure relief via reversible pneumatic valve Fire detection through carbon monoxide measurement Flushing system CO2/ N2 / LN2 (Optional: Water sprinkler) Achievable Hazard Level: 0-5 Security Package IV electropneumatic door locking mechanism independent safety temperature limiters Pressure relief via reversible pneumatic valve Fire detection through carbon monoxide measurement Flushing system CO2/ N2 / LN2 (Optional: Water sprinkler) Overpressure relief via rupture disc Achievable Hazard Level: 0-6 (7) Note: Level 7 may only be operated with a very small risk, as a tolerable residual risk. Salt spray systems for battery testing and more Quality assurance, for example for batteries used in electric vehicles, is becoming increasingly important. The safety of people and the environment plays a crucial role here. To guarantee long-term safety, the batteries must be tested under a wide variety of weather conditions. We offer a corrosion testing system for battery testing that can meet various testing standards. Through precisely tailored safety measures and close customer consultation, we can find a solution for all customer requirements. All existing Hazard Levels (HL) 0-7 can be implemented. Simply contact us to see which testing standards are feasible and what requirements are needed for your project. 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

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

Evaporators – efficient and precise evaporation solutions for corrosion testing, climate testing, and environmental simulation in industry and research. Our portfolio

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.

Test panels for corrosion and salt spray tests (NSS) – durable, precise, and ideal for testing facilities in industry, research, and development.

Sodium chloride for salt spray testing (NSS) – high-purity test medium for precise, reliable corrosion testing in industry and research. Would you like a pinch of salt? Those who know it swear by it: SaliCORR® Sodium Chloride for Corrosion Testing High purity, with quality certificate Free-flowing, guaranteed without anti-caking agents Ready-to-use packages with precise weighing SaliCORR® Sodium Chloride NaCl special grade for corrosion testing according to ISO 9227 Packaging sizes PE bag 5kg PE bucket 10kg PE bucket 20kg PE bucket 25kg SaliCORR® ASTM sodium chloride NaCl, special grade for corrosion testing according to ISO 9227, ASTM B 117, EN 60068-2-11 Packaging sizes PE bag 5kg PE bucket 10kg PE bucket 20kg PE bucket 25kg SaliCORR® SP Sodium Chloride NaCl, special grade for corrosion testing according to ISO 6353-2, DIN EN ISO 9227:2017, ASTM B117, EN 60068-2-11, RSA 36-00-802CH/09, Nissan MO158 Packaging sizes PE bag 5kg PE bucket 10kg PE bucket 20kg PE bucket 25kg

Corrosion cycle tests according to DIN EN ISO 11997-3 with Deepfreeze systems – reliable environmental simulation, durable test chambers, and customized test bench solutions. Corrosion testing device Deep Freeze Our Deep Freeze variants Our DeepFreeze variants enable testing at temperatures down to -20 °C and are ideal for applications according to the testing standard DIN EN ISO 11997-3. The systems are available in front-loading and walk-in versions. Frontloading: convenient loading from the front for quick test item changes Walk-in: individually adaptable to customer requirements; size, equipment and testing environment are precisely tailored to the test specimens and requirements. Advantages: constant minimum temperatures down to -20 °C suitable for test standard DIN EN ISO 11997-3 stable and durable construction optimal control for reproducible test results Flexible, customer-specific adaptation for walkable versions The DeepFreeze systems offer precise temperature control, ergonomic handling and maximum adaptability for demanding cryogenic and corrosion testing. 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 50°C Humidity Humidity control from 40 to 95 RH. frost Frost phase down to -20°C *Optional with test standard extension. The basic configuration can be mapped to DIN EN ISO 11997-3. Frontloading Walkable 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 DIN EN ISO 6270-2 CH/AT/AHT DIN EN ISO 11997-1 and 2 PV 1210 DIN EN ISO 11997-3 (old VDA 233-102) DIN EN 60068-2-52 severity level 1-6