Shenzhen Zhongnuo Testing Technology Co., Ltd. specializes in consulting services for explosion-proof certification and coal safety certification.
What is the Coal Safety Certification Mark?
Coal Mine Mark Certification (abbreviated as MA, KA Certification) is a mandatory certification implemented by the Coal Mine Safety Mark Office for items used underground in coal mines.
Products listed in the mining product safety certification directory must obtain a certification certificate.
Individuals and organizations are prohibited from selling, purchasing, or using mining products listed under the safety marking management directory that have not obtained a safety marking.
Manufacturers applying for a safety mark need to go through several steps, including filling out an application form, preliminary review and qualification registration, assessment, and certificate issuance.

The domestic coal safety certification system is still relatively strict. It combines type testing with factory production system review.
To ensure that the applicant company is capable of ensuring product production and capability. Even after obtaining the coal safety certification,
The company must also undergo annual supervision and evaluation by the ANSI Center.

How long is the validity of the Coal Safety/Mineral Safety Mark? -- Shenzhen Zhongnuo Inspection Technology Co., Ltd.
Currently, the valid period for the coal safety/mining safety mark on regular products is 5 years, and a new certificate must be obtained upon expiration.
The validity of the coal mine safety certification marks for industrial trial products and new products varies, with options of 1 year, 2 years, or 3 years.
Imported products applying for the Coal Safety/Mineral Safety Mark per batch are not subject to an expiration date; they are only valid for the specific batch of imported products.

Coal Safety/Mineral Safety Certification Differences
1. Distinctions in definitions. Coal safety certification, abbreviated as MA certification, as the name implies, is used in underground coal mines. Mine safety certification, or KA certification, is for non-coal mines, including other metallic or non-metallic mines; this is the fundamental difference.
2. The Testing process differs. During the type Testing phase, their Testing methods are also distinct. In terms of performance, both coal safety-certified products and mine safety-certified products undergo Testing based on the same industry standards. However, when it comes to safety performance, coal safety certification requires explosion-proof Testing according to the explosion-proof standard GB/T 3836, while mine safety certification requires Testing based on relevant industry standards. Coal safety certification is more inclined to prevent explosions, while mine safety certification focuses more on the safety performance of the product. This is the difference in their type Testing.
Coal Safety Certification and Mine Safety Certification Consultancy Services - Shenzhen Zhongnuo Testing Technology Co., Ltd.