GB/T 7493-1987 Active National standards

GB/T 7493-1987 Water quality—Determination of nitrogen (nitrite)—Spectrophotometric method

Publish Date: 1987-03-14 Implement Date: 1987-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 7493-1987

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Analysis methods for toxic substances in water environments

ICS Name: \nWater quality

Publish Date: 1987-03-14

Implement Date: 1987-08-01

Publisher: The State Environmental Protection Administration

Technical Committee: \n

Pages: 6 pages

Development Information

Drafting Units:

Hubei Provincial Environmental Monitoring Center Station

Drafting Persons:

Jin Guanlian and Wang Zhida

Word Count: 10 Thousand words Pages: 6 pages

Adopt standards

ISO 6777:1984

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GB/T 6816-1986 Water quality—Vocabulary—Part 1 and part 2

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GB/T 7467-1987 Active

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GB/T 7468-1987 Water quality—Determination of total mercury—Cold atomic absorption spectropho to metry

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GB/T 7469-1987 Active

GB/T 7469-1987 Water quality—Determination of total mercury—Potassium permanganate-potassium persalfate decomposed method—Dithizone spectrophotometric method

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