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1. GOST R 8.641-2013
State system for ensuring the uniformity of measurements. State verification scheme for measuring instruments of the water
solutions ion content by electrochemical methods (pX measuring instruments)
ГОСТ Р 8.641-2013
Государственная система обеспечения единства измерений. Государственная поверочная схема для средств измерений
электрохимическими методами ионного состава водных растворов (средств измерений рХ)
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