Feedstuffs, compound feeds, feed raw materials. Method for determination of soluble nitrogen fraction of total mass after treatment with pepsin in dilute hydrochloric acid
Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 031. Safety requirements for hand-held probe assemblies for electrical measurement and test
State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring the content of components in liquid and solid substances and materials. Transfer of the units from the state primary standard based on coulometric titration
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