Measurement of radioactivity — Determination of beta emitters activities — Test method using liquid ...
This document applies to the determination of beta emitters activity concentration using liquid scintillation counting. The method requires the preparation of a scintillation source, which is obtained by mixing the test sample and a scintillation cocktail. The test sample can be liquid (aqueous or organic), or solid (particles or filter or planchet).
NOTE           Planchet are samples,…
Plastics piping systems for the supply of gaseous fuels — Unplasticized polyamide (PA-U) piping syst...
This document specifies the characteristics of valves made from unplasticized polyamide (PA-U) in accordance with ISOÂ 16486-1, intended to be buried and used for the supply of gaseous fuels.
NOTE 1       For the purpose of this document the term gaseous fuels include for example natural gas, methane, butane, propane, hydrogen, manufactured gas, biogas, and mixtures of these gases. Additional…