English to Russian Tech/Engineering Metrology

Вот в таком контексте (текст из стандарта ASTM по определению кинематической вязкости):

A4. Calculation of acceptable tolerance zone (band) to determine conformance with a certified reference material

A4.1 Determine the standard deviation for SITE UNCERTAINTY, σsite, from a laboratory quality control program.

A4.2 Determine the combined extended uncertainty (CEU) of the accepted reference value (ARV) of the certified reference material (CRM) from the supplier's label or included documentation.

A4.3 Calculate the standard error of the accepted reference value (SEARV) by dividing the CEU by the coverage factor, k, listed on the supplier's label or included documentation.

A4.3.1 If the coverage factor, k, is not known, use the value 2.

A4.4 Construct the acceptable tolerance zone: