Foreword
Co-operating organizations
Specification
Section one. General
1 Scope
2 References
3 General considerations
Section two. Sampling plan
4 Introduction
5 Types of sample that may be required
6 Compressed or liquefied gases in cylinders
7 Gas in storage tanks
8 Gas flowing in pipes
9 Toxic or polluted atmospheres
Section three. Sampling apparatus
10 Introduction
11 Sampling probes
12 Sampling lines
13 Pressure regulators and flow controllers
14 Sample containers
15 Aspirators and exhaust pumps
Section four. Sampling techniques
16 Introduction
17 Sources of error
18 Leak testing
19 Metering
20 Methods for taking a spot sample
21 Methods for taking a continuous sample
22 Method for taking an intermittent sample
23 Method for taking a composite sample
24 Automatic method for taking intermittent and
continuous samples
Section five. Special applications of gas sampling
25 Cryogenic liquids and liquefied gases stored under
pressure
26 Permanent gases compressed in cylinders
27 Sampling for moisture determination at very low
moisture content
28 Isokinetic sampling for determination of dust burden
29 Hazardous atmospheres
Appendix
A Bibliography
Table
1 Solubility of gases in water
Figures
1 Typical water-cooled sampling probe
2 Typical heated probe unit with water-cooled jacket
3 Two designs of dust filter
4 Cartridge filter
5 Types of condensate trap
6 Edwards bottle
7 General design of glass gas sampling tubes
8 Sampling vessels for use under reduced pressure
9 Waterless gas holder
10 Typical aspirator and exhaust pumps
11 Apparatus for taking a continuous sample
12 Apparatus for control of sampling rate in taking a
continuous sample
13 Apparatus for taking a continuous sample (modified
Pexton-Hutchinson sampling apparatus)
14 Apparatus for taking an intermittent sample (Dudden
sampling device)
15 Block diagram of assembly for isokinetic sampling