GB/T 7494-1987 Active National standards

GB/T 7494-1987 Water quality—Determination of anionic surfactants—Methylene blue 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 7494-1987

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: 8 pages

Development Information

Drafting Units:

The Institute of Environmental Protection, Ministry of Light Industry

Drafting Persons:

Wang Jusheng

Word Count: 14 Thousand words Pages: 8 pages

Adopt standards

ISO 7875-1:1984

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

Publish Date: 1986-10-10

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GB/T 7466-1987 Active

GB/T 7466-1987 Water quality—Determination of total chromium

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GB/T 7467-1987 Active

GB/T 7467-1987 Water quality—Determination of chromium (Ⅵ)—1,5 Diphenylcarbohydrazide spectrophotometric method

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GB/T 7468-1987 Abolished

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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