EN ISO 3171:1999

0 Introduction
1 Scope and field of application
2 References
3 Definitions
4 Principles
5 Selection of sampling point (including stream
    conditioning)
6 Profile testing
7 Sampling design and installation
9 Control equipment
10 Flow measurement
11 Sample receivers and containers
12 Sample handling
13 Safety precautions
14 Operating procedures
15 Proving the sampling system
16 Estimation of overall sampling system uncertainty
17 Bibliography
Annex A Estimating water-in-oil dispersion
Annex B Example of water concentration profile tests at a
        crude oil terminal
Annex C Guide for initial screening of potential sampling
        locations

Recommends procedures for crude oil and liquid petroleum products being conveyed by pipeline. Does not apply to liquefied petroleum gases and liquefied natural gases. The principal purpose ist to give guidelines for specifying, testing, operating, maintaining and monitoring crude oil samples.