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Recommended practice for spectrophotometric measurement of concentrations of the disodium salt of 1-hydroxy-2-phenylazo-3,6-disulfo-7-(4´-nitrophenylazo)-8-aminonaphthalene (acid black dye N) in the air of the working zone
Translate name
STANDARD published on 31.12.1999
Designation standards: MUK 4.1.823-99
Publication date standards: 31.12.1999
SKU: NS-907331
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: Russian technical standard
Category: MUK
Latest update: 2026-06-15 (Number of items: 2 282 497)
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