Safety clothing with the EN ISO 11612 standard protects workers (except welders and firefighters) who are exposed to heat, flames and molten metals.
EN ISO 11612 is a standard that uses various tests to determine the extent to which clothing is capable of enduring industrial heat. Testing is carried out on the cloth and clothing. The results of these tests are represented by the letters A, B, C, D, E and F in combination with a number indicating the degree of protection. In addition to the tests, the clothing must also meet specific design requirements such as flaps on all cases with the letters D and or E, properly constructed seams and sufficient overlap of a jacket with respect to a pair of trousers.
If the clothing has been tested and meets all the specific design requirements, it will receive a classification. This consists of one or more letters in combination with the corresponding protection level, expressed in a number. If a certain type of protection is not achieved, this will be indicated with a number 0 or the late letter.
The following types of protection, their letter code and possible number codes are possible in EN ISO 11612:
11612-A FLAME SPREADING
During this test the fabric and seams are flamed for 10 seconds. In the result, the after-lamp time, afterglow time and hole formation must remain within the values of the set standard. The test can be carried out in two different ways:
- Procedure A (delivers A1) This is the surface flames.
- Procedure B (delivers A2) This is the edge ignition.