ASTM D3914-02 (2016) PDF

Full title and description

ASTM D3914-02 (2016) — Standard Practice for Liquid Hydrocarbon Sampling for On- and Offshore Production Operations and Petroleum Refineries. This practice provides procedures and guidance for obtaining representative liquid hydrocarbon samples in production, storage, and transfer operations, with emphasis on methods to minimize sample bias and contamination for accurate laboratory analysis.

Abstract

This standard practice describes recommended techniques for sampling liquid hydrocarbons (including crude oils, condensates, fuel oils, and related petroleum streams) in onshore and offshore production operations and at petroleum refineries. It covers personnel, equipment, sampling locations, sample containers, preservation, labeling, handling, and documentation to ensure samples are representative of the bulk material and suitable for subsequent laboratory testing. The 2016 designation indicates reaffirmation or editorial update of the original 2002 practice.

General information

• Status: Active (reaffirmed/editorial update in 2016)
• Publication date: Original 2002; edition reference 2016 (reaffirmed/updated)
• Publisher: ASTM International
• ICS / categories: 75.160 (Petroleum and related technologies); petroleum sampling and testing
• Edition / version: D3914-02 with 2016 reaffirmation/edition note
• Number of pages: Typically a short practice (approximately 6–12 pages) — exact pagination varies by published document

Scope

Provides recommended practices for collecting representative liquid hydrocarbon samples from production, storage, and transfer points in oil and gas field and refinery operations. It addresses selection of sampling points, sampling devices and methods, sample handling, preservation, and documentation to reduce sampling errors and ensure that laboratory results reflect the true properties of the bulk fluid. It is intended for use where routine physical and chemical analyses of liquid hydrocarbons are required for custody transfer, quality control, process monitoring, and troubleshooting.

Key topics and requirements

• Selection of proper sampling locations to obtain representative material (in-line, tank, truck, ship, wellstream points).
• Recommended sampling equipment and devices (probes, bailers, pumps, piston samplers) and their proper use to avoid contamination or fractionation.
• Procedures for obtaining spot, composite, and incremental samples depending on the service and objectives.
• Guidance on sample containers, seals, and closure materials suitable for various hydrocarbon types to prevent loss of volatiles and ingress of air or water.
• Sample preservation, temperature control, and special precautions for volatile or light-end components.
• Labeling, chain-of-custody, documentation, and documentation of field conditions affecting sample integrity.
• Safety considerations and recommended personal protective equipment during sampling operations.

Typical use and users

Used by petroleum engineers, field sampling technicians, quality control laboratories, refinery operations staff, custody transfer personnel, inspection and compliance teams, and consultants involved in hydrocarbon sampling and analysis. Common applications include routine quality checks, custody transfer sampling, process troubleshooting, regulatory compliance testing, and forensic investigation of off-spec or contaminated products.

Related standards

Often used alongside other ASTM liquid hydrocarbon sampling and testing standards such as those for crude oil sampling, petroleum products analysis, and custody transfer (for example, ASTM D4057, ASTM D4177, ASTM D7466, and related practices and test methods). It also complements industry and API sampling guidance commonly used in upstream and downstream operations.

Keywords

liquid hydrocarbon sampling, crude oil, condensate, petroleum sampling, sampling practice, sample containers, preservation, chain-of-custody, refinery, onshore, offshore

FAQ

Q: What is this standard?

A: ASTM D3914-02 (2016) is a standard practice published by ASTM International that provides guidance for sampling liquid hydrocarbons in production and refinery operations to obtain representative samples for laboratory analysis.

Q: What does it cover?

A: It covers selection of sampling points, sampling equipment and methods, container selection and preservation, handling and transport, documentation, and safety practices to minimize sampling errors and contamination.

Q: Who typically uses it?

A: Petroleum engineers, sampling technicians, laboratory personnel, refinery and production operators, custody transfer staff, and consultants involved in hydrocarbon quality control and testing.

Q: Is it current or superseded?

A: The document is cited as D3914-02 with a 2016 notation indicating reaffirmation or editorial update. Users should verify the latest status with ASTM International for any subsequent revisions or replacements.

Q: Is it part of a series?

A: It is part of a family of ASTM standards and practices addressing sampling and testing of petroleum products and crude oils, and is typically used in conjunction with standards such as ASTM D4057 and ASTM D4177.

Q: What are the key keywords?

A: liquid hydrocarbon sampling, crude oil, condensate, sampling practice, sample preservation, chain-of-custody