Tuhá biopaliva - Stanovení charakteristik odplynění a úbytku kyslíku - Část 1: Laboratorní metoda pro stanovení odplynění a úbytku kyslíku v uzavřených nádobách (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.11.2022
Označenie normy: ČSN P CEN ISO/TS 20048-1
Rozlišovací znak: 838235
Katalógové číslo: 515399
Dátum vydania normy: 1.11.2022
Počet strán: 36
Približná hmotnosť: 108 g (0.24 libier)
Krajina: Česká technická norma
Kategória: Technické normy ČSN
This document defines a method for determination of off-gassing (permanent gases) and oxygen depletion from woody as well as non-woody biomass, including densified materials such as pellets and briquettes, as well as non-densified materials such as chips. The method is also applicable for thermally treated materials, including torrefied and carbonized materials. The emission and depletion factor and emission and depletion rate for various gas species emitted from sample within a closed test container is determined by means of gas chromatography. The emission and depletion factor and emission and depletion rate provide guidance for ventilation requirements to keep gas concentrations below Permissible Exposure Levels (PEL) in spaces where workers can be exposed to the enclosed atmosphere