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Guidelines for Applying for Changes in the Mark of Coal Safety MA and Coal Safety KA

If the products of the enterprise are within the validity period of the safety mark, but there are changes in the business registration information, production conditions, or product technical documen……

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Guidelines for Continuing the Application of Coal Safety MA and Coal Safety KA Marks

For products that have obtained safety signs, if the validity period of the safety sign expires and there are no changes to the standards, drawings, main components, and important raw material lists o……

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Requirements of Coal Safety Certification for Primary Batteries

1、 Lithium primary batteries (1) with a capacity not exceeding (including) 10Ah. 1. The safety perfo……

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First application process for Coal Safety and Mining Safety (MA, KA) logo certification

Coal Mine Mark Certification (MA, KA certification for short) is a mandatory certification implemented by the National Coal Mine Safety Mark Office for underground coal mine supplies. All products lis……

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Related standards for coal safety certification (partial)

Coal Mine Mark Certification (MA, KA certification for short) is a mandatory certification implemented by the National Coal Mine Safety Mark Office for underground coal mine supplies. All products lis……

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Dust removal equipment installation and explosion-proof renovation construction

Working principle of pulse dust removal equipment: Pulse dust collector refers to the method of removing dust attached to the filter medium (bag or filter cartridge) by spraying compressed air; Depend……

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Construction of Anti explosion and Explosion Relief Workshop Renovation

（1） Explosion resistant wall 1. Explosion resistant wall: Explosion resistant wall refers to a wall ……

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Explosion proof electrical installation engineering

Explosion proof plug: Explosion proof plug is composed of socket and plug, mainly used in chemical industry, separated by mines, petroleum and other places in need. The socket is connected to the powe……

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List of Submission Documents for SIL Certification Level Pre Assessment

List of Documents for SIL Certification Level Pre Assessment Submission 1, Product User Manual 2, Product Safety Function List 3, Product Safety Manual 4, Failure Mode Analysis (FMEDA) Excel File 5, Q……

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SIL certification Q&A

1. What is SIL? SIL stands for Safety Integrity Level. SIL is a measure of the probability of failur……

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