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Database: 189760 (2 Jul 2022)
HG 21600-1999
HG 21600-1999_English: PDF (HG21600-1999)
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HG 21600-1999
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(Oval stainless steel quick opening manhole)
HG 21600-1999
Obsolete
HG 21600-1999
BASIC DATA
Standard ID
HG 21600-1999 (HG21600-1999)
Description (Translated English)
(Oval stainless steel quick opening manhole)
Sector / Industry
Chemical Industry Industry Standard
Classification of Chinese Standard
G91
Classification of International Standard
71.12
Word Count Estimation
5,588
Date of Issue
1999/12/10
Date of Implementation
2000/4/1
Older Standard (superseded by this standard)
HGJ 509-1986
Quoted Standard
GB 91; GB 880; HG 21594
Regulation (derived from)
Ministry of Industry and Information Technology Bulletin No. 47 of 2014; Industry-Science (2010) No. 77
Summary
This standard specifies the type of stainless steel oval quick open manhole, the basic parameters, size, technical requirements and regulations on the use.