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EVS-EN ISO 6145-4:2008

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method

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Kehtiv alates 07.10.2008
Alusdokumendid
ISO 6145-4:2004; EN ISO 6145-4:2008
Tegevusala (ICS grupid)
71.040.40 Keemiline analüüs
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Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
07.10.2008
Põhitekst
This part of ISO 6145 specifies a method for continuous production of calibration gas mixtures, containing twoor more components, from pure gases or other gas mixtures by continuous injection of the calibrationcomponent(s) into a complementary gas stream by means of a syringe.If pre-mixed gases are used instead of pure gases (see Annex A), much lower volume fractions can beobtained. The volume flow rates, from which the volume fractions are determined, can be calculated from theindividual flow rates and can be independently measured by a suitable method given in ISO 6145-1.

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EVS-EN ISO 6145-8:2008

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