DIN EN ISO 3171 2000-11 PDF

Full title and description

STB DIN EN ISO 3171 2000-11 — Petroleum liquids — Automatic pipeline sampling. German adoption of EN ISO 3171:1999 (identical to ISO 3171:1988). Specifies requirements and procedures for automatic sampling systems used to obtain representative samples of petroleum liquids transported in pipelines.

Abstract

This standard sets out principles, equipment requirements, installation and operating practices for automatic pipeline sampling of petroleum liquids. It covers design and siting of sampling points, sampler types and performance, sample handling and preservation, and checks and maintenance needed to ensure representative, reproducible samples for quality control and custody transfer.

General information

• Status: Current as published by DIN (adoption of EN ISO 3171:1999 / ISO 3171:1988).
• Publication date: 1 November 2000 (DIN edition: 2000-11).
• Publisher: Deutsches Institut für Normung e. V. (DIN) — as DIN EN ISO adoption.
• ICS / categories: 75.080 (Petroleum products in general).
• Edition / version: DIN EN ISO 3171:2000-11 — German version of EN ISO 3171:1999 (identical to ISO 3171:1988).
• Number of pages: 47 pages.

Scope

The standard applies to automatic sampling systems for crude oil and other liquid petroleum products conveyed in pipelines. It gives general rules for selection, installation, operation and maintenance of automatic samplers and sampling stations so that samples are representative of the flowing product. The standard does not apply to gaseous hydrocarbons (LPG, LNG) and may exclude special sampling arrangements for extremely viscous or particulate-laden streams unless specifically referenced.

Key topics and requirements

• Definitions and terminology related to pipeline sampling and automatic samplers.
• Design requirements for sampling probes, take-off points and sampling lines to avoid bias and contamination.
• Types of automatic samplers (continuous, intermittent/composite) and performance criteria for representativeness.
• Procedures for sample extraction, reduction, conditioning, preservation and transfer to containers.
• Requirements for sampler calibration, verification, and acceptance testing.
• Site installation, access, safety, and environmental controls for sampling stations.
• Maintenance, routine checks and documentation to ensure long-term reliability of sampling results.
• Quality assurance and record-keeping for custody transfer and contractual applications.

Typical use and users

Used by pipeline operators, oil and gas companies, refineries, terminals, laboratories, inspection bodies and purchasers/sellers engaged in custody transfer, quality control, compliance testing and process monitoring of liquid petroleum products. Also used by designers and manufacturers of automatic sampling equipment to meet industry practice.

Related standards

Relevant companion standards include ISO/EN standards on manual sampling and laboratory test methods for petroleum products (for example ISO 3170 on manual sampling, ISO 3735 on sediment determination, ISO 10336 on water determination methods, and other ISO/EN standards covering sampling of specific petroleum fractions and handling procedures). National and industry custody-transfer codes and local regulations may also reference or supplement this standard.

Keywords

automatic sampling, pipeline sampling, petroleum liquids, crude oil, sampler design, sample representativeness, custody transfer, sampler calibration, sampling station, sample preservation

FAQ

Q: What is this standard?

A: DIN EN ISO 3171:2000-11 is the German adoption of EN ISO 3171 (identical to ISO 3171:1988) that specifies requirements for automatic pipeline sampling of petroleum liquids.

Q: What does it cover?

A: It covers design, installation, operation, and maintenance of automatic sampling systems for pipelines carrying liquid petroleum products, including sampler types, probe placement, sample handling, calibration and quality assurance to obtain representative samples.

Q: Who typically uses it?

A: Pipeline operators, refiners, terminals, laboratories, equipment manufacturers, inspection and certification bodies, and commercial parties involved in custody transfer and product quality control.

Q: Is it current or superseded?

A: The document is the DIN publication dated 1 November 2000 adopting EN ISO 3171:1999 / ISO 3171:1988. Users should check national and international catalogs for any later revisions or replacements before applying the standard in regulatory or contractual contexts.

Q: Is it part of a series?

A: It sits among other ISO/EN standards on sampling and test methods for petroleum products (for example manual sampling standards and specific test-method standards). It is commonly used in conjunction with related ISO methods for laboratory analysis and sediment/water determination.

Q: What are the key keywords?

A: Automatic sampling, pipeline sampling, petroleum liquids, representative sample, custody transfer, sampler calibration, sampling probe.