Polyacrylamide Cost-Performance Analysis: High Efficiency at Direct Factory Rates
Explosion proof certification and explosion-proof qualification certificate are two concepts that many people easily confuse.
From the explanation on the encyclopedia, explosion-proof certification is the work of determining whether equipment meets the requirements of explosion-proof standards, conducting type tests and routine tests for adaptation, and issuing relevant certificates of conformity. The certificate can be for Ex devices or Ex components.
Explosion proof certificate: a document used to determine whether the equipment meets the requirements of the standard, undergoes type testing, and is suitable for routine testing by Zhongnuo Testing. The certificate can be for Ex devices or Ex components.
It is obvious that this is the distinction between process and result, explosion-proof certification is the process, and explosion-proof qualification certificate is the result. Explosion proof products can obtain an explosion-proof certificate after passing the explosion-proof certification. At present, China's explosion-proof certification models are divided into explosion-proof qualification certificate system, explosion-proof 3C certification system, and coal safety certification system.













