Standard
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AS/NZS 3580.2.2:2016
[Current]Methods for sampling and analysis of ambient air, Method 2.2: Preparation of reference test atmospheres - Compressed gas method
Sets out a method for the preparation of reference test atmospheres containing known concentrations of determinand(s), using a calibration gas dilution method.
Published: 06/05/2016
Pages: 12
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Referenced documents
3 Definitions
4 Principle
5 Apparatus
5.1 Certified reference material cylinder
5.2 Zero air
5.3 Dilution apparatus
5.4 Gas transfer lines
5.5 Reference flow meter
5.6 Reference thermometer
5.7 Reference barometer
6 Use of apparatus
6.1 General
6.2 Certified Reference Material (CRM)
6.2.1 General
6.2.2 Low temperature
6.2.3 Elevated temperature
6.2.4 Water
6.2.5 Storage and handling
6.2.6 Minimum pressure
6.2.7 Storage life
6.2.8 Pressure reduction and flow
6.3 Regulators, transfer lines and dilution apparatus materials
6.4 Zero air
6.5 Analyser
6.6 Manifold
6.7 Dilution apparatus
6.8 Reference flow meter
7 Flow verification
8 Procedure
8.1 Calculation of compressed gas CRM flow rate
8.2 Preparation of reference test atmospheres
9 Measurement uncertainty
Appendix A
A1 General
A2 Procedure
A3 Calibration record
Cited references in this standard
[Current]
Valves for compressed gas cylinders, Part 1: Specifications, type testing, and manufacturing tests and inspections
[Current]
Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - SUPPLEMENT 2: Extension to any number of output quantities
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