BS ISO 8943:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Outline of sampling system
  4.1 General
  4.2 Continuous sampling
  4.3 Intermittent sampling
5 Precautions
  5.1 Precautions to be taken in handling LNG
  5.2 Partial evaporation of the LNG sample
  5.3 Supervision during sampling
6 Apparatus
  6.1 Materials used
  6.2 Sample probe
  6.3 LNG sample vaporizer
  6.4 Compressor for transferring gasified LNG
  6.5 Pressure regulator
  6.6 Gas sample holder
  6.7 Gas sample compressor
  6.8 Gas sample container or CP/FP sample container
  6.9 Piping arrangement
  6.10 Sample filter
7 Sampling procedure
  7.1 Sampling period
  7.2 Consecutiveness of sampling
  7.3 Suspension of sampling
  7.4 Continuous sampling
  7.5 Intermittent sampling
8 Test report
Annex A (informative) Example of calculation of degree
        of sub-cooling
Annex B (informative) Constant pressure (CP)/floating piston
        (FP) sample container with technical specifications

Describes methods for the continuous and the intermittent sampling of LNG while it is being transferred through an LNG transfer line.

This International Standard specifies methods for the continuous and the intermittent sampling of LNG while it is being transferred through an LNG transfer line.