State system for ensuring the uniformity of measurements. State verification schedule for measurement means of tristimulus values, chromaticity coordinates, index whiteness and gloss
Foodstuffs. Determination of nitrate and/or nitrite content. Part 3. Spectrophotometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
System of national standards in the field of quality of a telecommunication service. Evaluation of the quality of communication services on the basis of consumer views
