GOST 13586.6-1993 Grain. Methods for determination of infested grain*, 1993-04-19 Update
GOST 2263-1979 Sodium hydroxide for industrial use. Specifications
GOST 24104-1988 General purpose laboratory balances and comparison balances. Performance. Specifications*, 1988-04-19 Update
GOST 25706-1983 Magnifiers. Types, basic parameters. General technical requirements
GOST 30483-1997 Grain. Methods for determination of general and fractional content of extraneous matter and damaged grains; content of small grains and grain size; content of grains attacked by pests; content of metallic particles*, 1997-04-19 Update