EN ISO 10715:2000

Foreword
Introduction
1 Scope
2 Definitions
3 Principles of sampling
4 Safety precautions
5 Technical considerations
6 Materials used in sampling
7 General preparation of equipment
8 Sampling equipment
9 Spot sampling
10 Direct sampling
11 Incremental sampling
Annex A (informative) Use of a block valve in direct sampling
Annex B (informative) Cleaning of steel sampling cylinders
Annex C (informative) Procedure for low-pressure sampling into
        glass cylinders
Annex D (informative) Procedure for sampling by the fill-and-empty
        method
Annex E (informative) Procedure for sampling by the controlled-rate
        method
Annex F (informative) Procedure for sampling by the evacuated-cylinder
        method
Annex G (informative) Guidelines for the calculation of the residence
        time
Annex H (informative) Student's t-table
Annex J (informative) Bibliography

Gives concise guidelines for the collecting, conditioning and handling of representative samples of processed natural gas streams. Also gives guidance for sampling strategy, probe location and the handling and design of sampling equipment. Useful for custody transfer measurement systems and allocation measurement systems.