State system for ensuring the uniformity of measurements. Reference systems for certification reference materials composition of magistral natural gas and substitute natural gas. The method of verification

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with Nitrogen oxide, Nitrogen dioxide, Hydrogen sulfide, Sulfur dioxide, Ammonia. Procedure of determining the metrological characteristics

Norma vydána dne 1.2.2017

State system for ensuring the uniformity of measurements. Certified reference materials of natural gas magistral and substitute natural gas. Procedure of determining the metrological characteristics

Norma vydána dne 1.2.2017

State system for ensuring the traceability of measurements. Gas analyzers and gas alarm devices for determination of combustible gases and vapors in working zone air. Testing method

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Gas generators vapor ethanol in the air. Verification procedure

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Ozone analyzers. Verification procedure

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with Hydrogen, Nitrogen, Oxygen, Carbon Oxide, Carbon Dioxide, Methane, Propane, Hexane. Procedure of determining the metrological characteristics

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with halocarbons. Procedure of determining the metrological characteristics

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Solid mineral fuels. Gross and net calorific value. Accuracy parameters

Norma vydána dne 1.7.2017

State system for ensuring the uniformity of measurements. Expert evaluation of test results obtained from different laboratories

Norma vydána dne 1.7.2017