YB 4009-1991 Abolished Industry standards-Black metallurgy

YB 4009-1991 The chemical analysis method for high-quality magnesite, determination of silicon dioxide content using molybdenum blue photometry

Publish Date: 1991-05-04 Implement Date: 1992-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: YB 4009-1991

Standard Type: Industry standards

Standard Status: Abolished

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1991-05-04

Implement Date: 1992-01-01

Publisher: The Ministry of Metallurgical Industry of the People's Republic of China

Pages: 8 pages

Development Information

Drafting Units:

Liaoning Magnesium Mining Company

Drafting Persons:

Gao Xuekui

Word Count: 5 Thousand words Pages: 8 pages

Referenced Standards

GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values

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