GOST R 50685-1994
Soils. Determination of mobile compounds of manganese by Krupsky and Alexandrova method modified by CINAO

Standard No.

GOST R 50685-1994

Release Date

1994

Published By

RU-GOST R

Latest

GOST R 50685-1994

Scope

This standard establishes a method for determining mobile manganese compounds in chernozems, chestnut and other steppe soils, semi

GOST R 50685-1994 Referenced Document

• GOST 12.0.004-1990 Occupational safety standards system. Organization of training for labour safety. General rules
• GOST 12026-1976 Laboratory filter paper. Specifications
• GOST 1625-1989 Formalin for industrial use. Specifications
• GOST 1770-1974 Laboratory volumetric glassware. Cylinders, beakers, measuring flasks, test tubes. General specifications
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• GOST 24104-1988 General purpose laboratory balances and comparison balances. Performance. Specifications
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• GOST 4140-1974 Reagents. Strontium chloride, 6-aqueous. Specifications
• GOST 4204-1977 Reagents. Sulphuric acid. Specifications
• GOST 435-1977 Reagents. 5-aqueous manganese sulphate (II). Specifications
• GOST 5456-1979 Reagents. Hydroxilamine hydrochloride. Specifications
• GOST 5457-1975 Dissolved acetylene and gaseous acetylene for technical purposes. Specifications*， 2024-04-18 Update
• GOST 61-1975 Reagents. Acetic acid. Specifications
• GOST 6709-1972 Distilled water. Specifications
• GOST 8.315-1991 State system for ensuring the uniformity of measuring. Reference materials. Basic principles, ways of development, certification, approval, registration and use
• GOST 9147-1980 Laboratory porcelain ware and apparatus. Specifications*， 2024-04-18 Update

GOST R 50685-1994 history

• 1994 GOST R 50685-1994 Soils. Determination of mobile compounds of manganese by Krupsky and Alexandrova method modified by CINAO