
Analytical methods for boiler water and cooling water—Determination of iron in prefilming liquid containing phosphorus and zinc—Sulphosalicylic acid spectrophotometry
NORMA vydaná dňa 22.3.1989
Designation standards: GB/T 10658-1989
Note: NEPLATNÁ
Publication date standards: 22.3.1989
Country: Chinese technical standard
Kategória: Technické normy GB