ASTM D4177 - 16e1

    Standard Practice for Automatic Sampling of Petroleum and Petroleum Products

    Active Standard ASTM D4177 | Developed by Subcommittee: D02.02

    Book of Standards Volume: 05.02

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    Significance and Use

    4.1 Representative samples of petroleum and petroleum products are required for the determination of chemical and physical properties, which are used to establish standard volumes, prices, and compliance with commercial terms and regulatory requirements. This practice does not cover sampling of electrical insulating oils and hydraulic fluids. This practice does not address how to sample crude at temperatures below the freezing point of water.

    PART I—General

    This part is applicable to all petroleum liquid sampling whether it be crude oil or refined products. Review this section before designing or installing any automatic sampling system.

    1. Scope

    1.1 This practice describes general procedures and equipment for automatically obtaining samples of liquid petroleum and petroleum products, crude oils, and intermediate products from the sample point into the primary container. This practice also provides additional specific information about sample container selection, preparation, and sample handling. If sampling is for the precise determination of volatility, use Practice D5842 (API MPMS Chapter 8.4) in conjunction with this practice. For sample mixing and handling, refer to Practice D5854 (API MPMS Chapter 8.3). This practice does not cover sampling of electrical insulating oils and hydraulic fluids.

    1.2 Table of Contents: 







    Referenced Documents




    Significance and Use




    Representative Sampling Components


    Design Criteria


    Automatic Sampling Systems


    Sampling Location


    Mixing of the Flowing Stream




    Sample Extractor Grab Volume




    Sample Handling and Mixing


    Control Systems


    Sample System Security


    System Proving (Performance Acceptance Tests)


    Performance Monitoring




    Crude Oil




    Refined Products








    Calculations of the Margin of Error based on Number of Sample Grabs

    Annex A1

    Theoretical Calculations for Selecting the Sampler Probe Location

    Annex A2

    Performance Criteria for Portable Sampling Units

    Annex A3

    Profile Performance Test

    Annex A4

    Sampler Acceptance Test Data

    Annex A5



    Design Data Sheet for Automatic Sampling System

    Appendix X1

    Comparisons of Percent Sediment and Water versus Unloading Time Period

    Appendix X2

    1.3 Units—The values stated in either SI units or US Customary (USC) units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Except where there is no direct SI equivalent, such as for National Pipe Threads/diameters, or tubing.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D4007 Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure)

    D4840 Guide for Sample Chain-of-Custody Procedures

    D4928 Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration

    D5842 Practice for Sampling and Handling of Fuels for Volatility Measurement

    D5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products

    API Standards

    MPMS Chapter 10 Sediment and Water

    MPMS Chapter 13 Statistical Aspects of Measuring and Sampling

    MPMS Chapter 20 Production Allocation Measurement for High Water Content Crude Oil Sampling

    MPMS Chapter 21 Flow Measurement Using Electronic Metering Systems

    MPMS Chapter 4 Proving Systems

    MPMS Chapter 5

    MPMS Chapter 8.3 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products (ASTM Practice )

    MPMS Chapter 8.4 Practice for Manual Sampling and Handling of Fuels for Volatility Measurement (ASTM Practice )

    ISO Standards

    ISO 1998

    ICS Code

    ICS Number Code 75.080 (Petroleum products in general); 75.100 (Lubricants, industrial oils and related products)

    Referencing This Standard
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    DOI: 10.1520/D4177-16E01

    Citation Format

    ASTM D4177-16e1, Standard Practice for Automatic Sampling of Petroleum and Petroleum Products, ASTM International, West Conshohocken, PA, 2016,

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