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BS ISO 6145-5:2001

$102.76

Gas analysis. Preparation of calibration gas mixtures using dynamic volumetric methods – Capillary calibration devices

Published By Publication Date Number of Pages
BSI 2001 20
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PDF Pages PDF Title
3 Gas analysis�— Preparation of calibration gas mixtures using dynamic volumetric methods�—
5 Contents Page
6 Foreword
7 Introduction
9 Gas analysis�— Preparation of calibration gas mixtures using dynamic volumetric methods�—
1��� Scope
2��� Normative references
3��� Singular or multiple capillary combinations
3.1��� Principle
10 3.2��� Apparatus
3.2.1��� Two-capillary system
3.2.1.1��� Capillaries
11 3.2.1.2��� Two-stage pressure regulator
3.2.1.3��� Differential manometer
3.2.1.4��� Gas manifold
3.2.1.5��� Gas filters
3.2.1.6��� Thermostatic controller
3.3��� Procedure
3.4��� Calculations
3.4.1��� Capillary flow rate
12 3.4.2��� Volume fraction
3.4.3��� Uncertainty
13 4��� Multiple capillary devices using gas dividers
4.1��� Gas dividers
4.2��� Principle
4.2.1��� A gas divider contains a combination of capillary tubes of exactly the same lengths and …
4.2.2��� The flow rates of a component gas and a dilution gas are controlled by the capillary tub…
14 4.3��� Operating controls
4.4��� Sources of errors in generating calibration gases
4.4.1��� Temperature
4.4.2��� Viscosity
4.4.3��� Calibration of the gas divider
15 4.4.4��� Pressure
16 Numerical example
A.1��� Calibration of a gas analyser using a gas divider
A.2��� Calibration of a gas divider (assessment of traceability procedure)
BS ISO 6145-5:2001
$102.76