Gas detection threshold for market access -

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National Quality Supervision and Inspection Center (CQST), explosion-proof electrical Nanyang Institute,
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system of standards:
UL / GS (the United States, many Western countries have recognized)
FCC U.S. electromagnetic compatibility of electronic products certificate
ROSH EU environmental certification
Non-Compulsory Certification:
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inspection certification units are: Shanghai Electric Explosion Inspection Station in Shanghai;
domestic certification
difficult intrinsically safe, explosion-proof simple.

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

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