EN ISO 11612
information
EN ISO 11612 Protective clothing against heat and flame
EN ISO 11612 is an internationally recognized standard for thermal protection performance of protective clothing. Through a scientific A to F letter coding system, it breaks down the protective ability into six independent dimensions: limited flame spread, convective heat, radiant heat, contact heat, and molten aluminum and molten iron splashing. This allows companies to accurately select protective equipment based on the actual risks of their positions. Whether it is the risk of flash fire in petrochemicals, high temperature radiation in casting workshops, or metal splashing during welding operations, this standard can provide graded and verifiable protection to ensure that protective clothing can maintain reliable flame retardant and thermal insulation performance after repeated use and cleaning. As a coordinated standard within the framework of EU personal protective equipment regulations, it is not only a mandatory pass for products to enter the international market, but also a solid “thermal protection shield” to safeguard the life safety of every worker in high-temperature industrial environments.
haiyuan certification
EU TYPE-EXAMINATION CERTIFICATE Regulation (EU) 2016/425, MODULE B0598/PPE/24/2269 Issue 1
Product:Protective clothing against heat and flame
Model:TZ161-QM217
Trademark:henglu
Certificate Holder /Manufacturer:Shijiazhuang Haiyuan Labor Security Supplies Co.,Ltd
Yuanshi County (Equipment Manufacturing Base), South Of Yingli New Village, Macun Town, Shijiazhuang City, Hebei Province, China
Product complies with the applicable essential health and safety requirements of Regulation (EU)2016/425 and standard(s) mentioned below
Standard(s)：EN ISO 11612:2015 A1,C1 EN 17353:2020 Type B2 EN ISO 13688:2013 +A1:2021
Other Information –
Validity：This cerfificate is valid until 2029-02-01.
Date of issue：2024-02-01
SGS Fimko Ltd
Signature Kelvin Shepherd
SGS Fimko Ltd is a Notified Body (0598) according to the Personal Protective Equipment Regulation (EU)
This document is issued by the Company under its General Conditions of Service accessible at http://www.sgs.com/terms_and_conditions.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein.
Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerateparties to a transaction from exercising all their rights and obligationsunder the transaction documents. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawfuland offenders may be prosecuted to the fullest extent of the law.
SGS Fimko Ltd
Takomotie 8, FI-00380 Helsinki, Finlandt. +358 9 696 361 www.sgs.fi
Business ID 0978538-5
Member of the SGS Group (SGS SA)
certification standard
EN ISO 11612 is a thermal and flame protection standard for protective clothing jointly developed by the International Organization for Standardization and the European Committee for Standardization. Its full name is “Protective Clothing – Thermal and Flame Protection – Minimum Performance Requirements”. It specifically targets various hot air hazards that may occur in high-temperature industrial environments, providing a unified evaluation framework for the design, material properties, and testing methods of protective clothing.
Ⅰ、 Core coding system
The standard adopts a letter coding system from A to F, where each letter represents a specific type of thermal protection performance. This code is directly labeled on the clothing label, allowing security management personnel and wearers to quickly identify which specific hot air risk scenarios the clothing is suitable for.
| coding | Protection type | Test Method Overview | Performance grading |
|---|---|---|---|
| A | Limited flame spread | After the material is exposed to a flame, measure the flame spread range and residual flame and residual combustion time | A1 (surface ignition) or A2 (edge ignition), both must meet specific limits |
| B | Convective heat | Place the sample above the flame and measure the time required for the inner surface temperature to rise by 24 ° C | B1:4 to<10 seconds B2:10 to<20 seconds B3: 21 seconds and above |
| C | radiant heat | Expose the sample to an infrared radiation source and measure the time required for the internal surface temperature to rise by 24 ° C | C1:7 to<20 seconds C2:20 to<50 seconds C3: 50 to<95 seconds C4: 95 seconds or more |
| D | Molten aluminum splashing | Pour molten aluminum at 780 ° C onto the fabric, and place a thin film that simulates skin underneath the fabric, based on whether the film is intact | D1: 100 g to<200 g D2: 200 g to<350 g D3: 350 g and above |
| E | Splashing of molten iron | Pour molten iron at approximately 1400 ° C onto the fabric and place a PVC film underneath it, based on whether the film is intact | E1: 60 g to<120 g E2: 120 g to<200 g E3: 200 g and above |
| F | Contact heat | Contact the fabric with a heating element at 250 ° C and measure the time required for the inner surface temperature to rise by 10 ° C | F1: 5.0 to<10.0 minutes F2: 10.0 to<15.0 minutes F3: 15.0 minutes and above |
Ⅱ、 Detailed explanation of each testing item
Class A – Limited Flame Spread This is the basic test that all protective clothing certified by EN ISO 11612 must meet. After brief exposure to flames, the flame spread range, residual flame time, and residual combustion time of the material must be controlled within the specified limits. This test ensures that clothing does not continue to burn or spread when accidentally exposed to flames, giving the wearer time to escape danger.
Class B – convective heat protection Evaluate the material’s ability to block high-temperature gas or flame convective heat transfer. During testing, fix the sample above the flame and record the time required for the internal surface temperature to rise by 24 ° C using a calorimeter. The longer the time, the higher the level of protection. B1 level is suitable for low-intensity brief exposure, while B3 level is suitable for more severe convective heat environments.
Class C – Radiation Heat Protection Evaluate the material’s ability to block infrared radiation heat. During testing, expose the sample to a controlled radiation heat source and measure the time required for the internal surface temperature to rise by 24 ° C. C1 is the lowest level and C4 is the highest level, suitable for work scenarios with strong radiation heat sources such as casting and steel smelting.
Class D – Molten Aluminum Splash Protection Regarding the risk of molten aluminum splashing in industries such as aluminum processing, automotive manufacturing, and aerospace. During testing, pour 780 ° C molten aluminum onto the fabric and place a thin film underneath to simulate human skin. The criterion for judgment is whether the film remains intact after testing. The grading of D1 to D3 depends on the amount of molten metal that the fabric can withstand.
Class E – Molten Iron Splash Protection Regarding the risk of molten iron splashing in steel casting and heavy metal processing. The testing method is similar to Class D, but using molten iron at approximately 1400 ° C and PVC film as a simulated skin layer. The level of E1 to E3 also depends on the amount of metal it can withstand.
Class F – Contact Thermal Protection Evaluate the protective ability of materials against direct contact with high-temperature objects. During testing, the fabric is in contact with a heating element at 250 ° C and the time required for the inner surface temperature to rise by 10 ° C is measured. F1 level can provide protection for 5 to 10 minutes, while F3 level can provide protection for more than 15 minutes, suitable for operating environments that may come into contact with high-temperature pipelines, equipment, or tools.
Ⅲ、 Certification and Market Access
EN ISO 11612 is a coordinated standard under the framework of the European Union’s Personal Protective Equipment Regulation (EU) 2016/425. Protective clothing must pass the various tests specified in this standard in order to enter the EU market and bear the CE mark. The certification process usually includes: determining the product type and applicable level, preparing technical documents, selecting EU notified bodies for type testing, establishing an internal production control system, and signing a declaration of conformity. Only by completing the above steps can the product be legally launched in the European market.
Ⅳ、 Usage and maintenance
Certified protective clothing must be worn, cleaned, and maintained according to the manufacturer’s instructions. Improper cleaning methods or excessive use may reduce protective performance. Some tests may require samples to undergo a specified cleaning cycle before testing to verify the performance retention ability of the clothing after repeated use. Users should regularly check the integrity of their clothing and replace it promptly if any damage, severe contamination, or performance degradation is found.
