Gas detection threshold for market access

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foreign certification
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inspection certification units are: Shanghai Electric Explosion Inspection Station in Shanghai;
National Quality Supervision and Inspection Center (CQST), explosion-proof electrical Nanyang Institute,
compulsory certification (mainly the three major certification CCCF / measurement / explosion-proof certification):
explosion-proof electrical products
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system of standards:
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, the fastest 1 month certification period.
Shenyang, product assessment center testing, the fastest 3 month certification period, the new one-time entry of the businesses are more difficult to pass.
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also carbon monoxide,[link widoczny dla zalogowanych], hydrogen sulfide and other gases, verification procedures,[link widoczny dla zalogowanych], access to the Internet to check.
difficult intrinsically safe, explosion-proof simple.
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GB15322.1-2003 series of standards are 1-5, you can access the relevant information first.
Supervision is responsible for around
ATEX (Explosion-proof, explosion and the safety key separated into two categories,[link widoczny dla zalogowanych],[link widoczny dla zalogowanych], basically all the international recognition of the flag)
domestic certification
Non-Compulsory Certification:
CE (EU basic authentication of electronic products)

UL / GS (the United States, many Western countries have recognized)
FCC U.S. electromagnetic compatibility of electronic products certificate
ROSH EU environmental certification