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Copper concentrates. Determination of lead, zinc, cadmium. Flame atomic absorption method

Document status: Replaced by GOST 32221-2013

Reagents. Silicic acid aqueous. Specifications

Document status: Active

Fuel for engines. Research method for determination of octane number

Document status: Replaced by GOST 8226-2022

Chalk. General requirements for methods of analysis

Document status: Active

Coal-chemical naphthalene. Specifications

Document status: Replaced by GOST 16106-2019

Turbodimetric and nephelometric analyzers of liquid. General technical requirements and testing methods

Document status: Active