ASTM WK71322

    Revision of D6273 - 14 Standard Test Methods for Natural Gas Odor Intensity

    (What is a Work Item?)

    Active Standard: D6273 - 14

    Developed by Subcommittee: D03.05 | Committee D03 | Contact Staff Manager



    WK71322


    Keywords

    compressed natural gas (CNG); natural gas; odor; odorant; sensory evaluation;

    Rationale

    3.1 Definitions: See D4150 for definitions of terms for use with gaseous fuels. 3.2 Definitions: See E253 for definitions of terms for use with sensory evaluation of materials and products. 3.3 Definitions of terms specific to this standard: 3.3.1 high pressure, nfor the purpose of these test methods, high pressure refers to natural gas pressure greater than the maximum inlet pressure specified by the manufacturer of the gas dilution apparatus. 3.3.2 intensity, nthe magnitude of odor perceived by the operator. 3.3.3 low pressure, nfor the purpose of these test methods, low pressure refers to natural gas pressure less than or equal to the maximum inlet pressure specified by the manufacturer of the gas dilution apparatus. 3.1.1 odorant, nsulfur-bearing compound that gives natural gas a distinctive odor. For the purpose of these test methods, natural gas odorants may be compounds that are present at the wellhead or commercial mixtures that are added to the gas stream, or both. 3.3.41.2 olfactory fatigue, ndesensitization of the sense of smell through either prolonged exposure or repeated exposure over a short period of time to an odor, a mixture of odors, or series of odors. 3.3.5 operator(s), nthe person(s) performing the testing described in these test methods. Because of the nature of the testing described herein, the operator shall be qualified to perform this work (see 5.2). 3.3.6 readily detectable level, nthe concentration of natural gas and odorant mixture in air at which the operator is able to detect and identify natural gas odor. 3.3.71.3 sniff, vismell or snuff with short, audible inhalations. 3.2 Definitions of Terms Specific to This Standard: 3.2.1 high pressure, nfor the purpose of these test methods, high pressure refers to natural gas pressure greater than the maximum inlet pressure specified by the manufacturer of the gas dilution apparatus. 3.2.2 intensity, nthe magnitude of odor perceived by the operator. 3.2.3 low pressure, nfor the purpose of these test methods, low pressure refers to natural gas pressure less than or equal to the maximum inlet pressure specified by the manufacturer of the gas dilution apparatus. 3.2.4 operator(s), nthe person(s) performing the testing described in these test methods. Because of the nature of the testing described herein, the operator shall be qualified to perform this work (see 5.2). 3.2.5 readily detectable level, nthe concentration of natural gas and odorant mixture in air at which the operator is able to detect and identify natural gas odor. 3.2.6 threshold detection level, nthe concentration of natural gas and odorant mixture in air at which the operator is barely able to detect an odor. 3.3 For definitions of terms related to natural gas that are used in these test methods, refer to Practice D5287. 3.4 For definitions of terms related to olfactory testing that are used in these test methods, refer to Terminology E253.

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    Work Item Status

    Date Initiated:
    01-07-2020

    Technical Contact:
    Christina Daniels

    Item:
    001

    Ballot:
    D03 (20-01)

    Status:
    Negative Votes Need Resolution