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BS ISO 19230:2020

BS ISO 19230:2020

$198.66

Gas analysis. Sampling guidelines

Published By Publication Date Number of Pages
BSI 2020 52
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This document specifies the general provisions and gives the basic definitions of terms relating to sampling for gas analysis, including sampling devices, sampling methods, sampling technical considerations, and sampling safety.

This document applies to both direct and indirect sampling of gas in pressure receptacles and pipelines, including pure gases and gas mixtures. Compressed and liquefied gases are both considered.

This document applies to the sampling of processed gases and does not involve gas treatment processes.

The sampling procedures specified are not intended for the sampling of special products which are the subject of other International Standards, such as liquefied petroleum gases (see ISO 4257) and gaseous natural gases (see ISO 10715).

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
13 4 Sampling plan
14 5 Sampling classification
5.1 Sampling classification of gases
15 5.2 Sampling classification of liquefied gas
16 6 Technical specifications
6.1 Overview
6.2 General considerations for gas sampling
6.2.1 Adsorption, reaction and permeation of sampling system
6.2.2 Leaks and atmospheric diffusion in the sampling system
6.2.3 Leak testing of the sampling system
17 6.2.4 Purging of the sampling system
19 6.2.5 Homogeneity of gas
20 6.2.6 Inert-gas purging
6.3 Possible condensation during compressed gas sampling
21 6.4 Main considerations for liquefied gas sampling
6.5 Samples that are not feasible in containers or cannot be used for analysis directly
7 Safety guidance in sampling
7.1 Overview
7.2 General recommendation
22 7.3 Specific recommendation for sampling a certain substance
8 Sampling devices
8.1 General provision
8.2 Sample container
8.2.1 Sample container material
24 8.2.2 Structure of sample container
26 8.2.3 Volume of sample container
8.3 Sample probe
27 8.4 Pressure reducer and flow controller
8.5 Sample pump
8.6 Sample line
8.6.1 Material of sample line
28 8.6.2 Length and diameter of sample line
8.7 Connecters and seals
8.8 Cleaning and drying of the sampling device
8.9 Connection of sampling devices
29 9 Sampling
9.1 Sampling method block diagram
9.1.1 Overview
9.1.2 Block diagram of compressed gas sampling method
9.1.3 Block diagram of liquefied gas sampling method
30 9.2 Quality assessment of the sampling system
9.3 Sampling from the gaseous phase and sampling after evaporation of liquefied gas
31 9.4 Direct sampling
9.4.1 General provisions
9.4.2 Direct sampling of gas in pressure receptacles
9.4.3 Direct sampling of gas in pipelines
9.5 Indirect sampling
9.5.1 Indirect sampling of gas in pressure receptacles
32 9.5.2 Indirect sampling of gas in pipelines
33 9.5.3 Leakage test of sample container
9.5.4 Storage of samples
9.6 Sampling records
34 Annex A (informative) Examples of estimation of the purging time and purging cycles for sampling system
35 Annex B (informative) Direct sampling for gas in pressure receptacles
38 Annex C (informative) Direct sampling of gas in pipelines
40 Annex D (informative) Fill-empty sampling method
42 Annex E (informative) Evacuated-container sampling
47 Annex F (informative) Evacuated-system sampling
49 Annex G (informative) Indirect sampling using floating piston cylinders
51 Bibliography

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BS ISO 19230:2020
$198.66