ⅠClass (coal mine) issuing agency:

National Mining Product Safety Mark Center:

AAdministrative division: under the jurisdiction of the State Administration of Work Safety.

BJob responsibilities: Undertake all work related to the management of safety signs for mining products, including certification, technical review, on-site evaluation, product sampling inspection, and supervision and management after certification.

ⅠClass testing agency:

 Currently, there are22The home testing unit has been awarded Class A qualification and can independently carry out product testing work. Institutions are not listed here, and can be found on the safety standard website. Common ones include coal science institutes in Shanghai, Fushun, Chongqing, Changzhou, etc.

Certification process:

Online application--Acceptance by the Safety Standard Center--Distribute inspection tasks to the testing unit--The testing unit uploads materials and test reports to the Safety Standards Center--Safety Standard Center Audit--On site evaluation--Certificate issuance

 Note: The first application for safety certification must undergo on-site safety evaluation. After obtaining evidence, it is necessary to follow1second/Annual supervision and review. If the newly applied product cannot be covered, an on-site review will also be conducted during the application process.

 For example, intrinsic safety class cannot cover explosion-proof class, and on-site evaluation is required when applying for certification.

ⅡClassⅢClass issuing agency:

CQST :National Explosion proof Certification Electrical Product Quality Supervision and Inspection Center

 Abbreviation: Nanyang Explosion proof Institute

Location: Nanyang City, Henan Province

Qualification: It is a Class A institution authorized earlier by the country and can also carry outⅠInspection of similar products.

PCECExplosion proof Quality Supervision and Inspection Center for Electrical Products in Petroleum and Chemical Industry

Abbreviation: TianjinPCEC

Location: Tianjin City

Qualification: Administratively affiliated with CNOOC Corporation, also one of the earliest in China to obtain itⅡClass IIIOne of the issuing units authorized for explosion-proof testing.

NEPSINational Explosion proof Safety Supervision and Inspection Station for Instruments and Meters

Abbreviation: Shanghai Institute of Instruments and Meters

Location: Shanghai

Qualification: Established in1960In the year, in2003Becoming an independent registered legal entity in the year, it has a high reputation in China.

CHEMMechanical Industry Explosion proof Electrical Equipment Quality Supervision and Inspection Center

 Abbreviation: Jiamusi Explosion proof Institute

Location: Jiamusi City, Heilongjiang Province

qualifications:2011The Ministry of Science and Technology issued a document approving the construction in, and has helped many enterprises in northern China obtain explosion-proof certificates to date.

CQCExNational Explosion proof Equipment Quality Supervision and Inspection Center (Guangdong)

Abbreviation: Guangdong Special Inspection Institute

Location: Guangzhou, Guangdong Province

qualifications:2016Authorized by the General Administration of Quality Supervision, Inspection and Quarantine in, it fills the gap in the current situation of no anti explosion certificate institutions in southern China, and has developed rapidly in recent years.

 Note: Provincial and municipal quality supervision bureaus will conduct irregular quality supervision and spot checks on explosion-proof equipment in circulation on the market, as well as on enterprises producing explosion-proof equipment. The products sampled will be sent to relevant explosion-proof institutions for testing. Once a test fails, it will more or less affect the production and operation of the enterprise.