ASTM WK71892

    Revision of C1728 - 17 Standard Specification for Flexible Aerogel Insulation

    (What is a Work Item?)

    Active Standard: C1728 - 17

    Developed by Subcommittee: C16.23 | Committee C16 | Contact Staff Manager



    WK71892


    Keywords

    aerogel; blanket; composite; flexible; insulation; pipe insulation; sheet; thermal conductivity; water retention;;

    Rationale

    There a two revisions outstanding, 1) Prior to the October 2019 Task Group and Subcomtitee meeting representatives from Armacell requested the Type I Grade 1 Category B material called out in the specification have its thermal conductivity values increased. The measure was balloted and five negative votes were received and were found persuasive at the Task group and Sub Committee level. After the meeting Aramacell representatives requested a new Category C be proposed for the Type 1 Grade 1 group of products citing the thermal conductivity values proposed for the modified Category B product. It was widely suggested at the Task Group that incorporating a new category into the standard was the appropriate way to have their material represented. 2) At the same meeting (Fall 2019) a ballot to clarify the test procedures for maximum use temperature and maximum exothermic temperature rise received three negative votes that were found persuasive.! The measure to clarify those procedures will be reworded incorporating the content from the negative voters and re-balloted.

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    Work Item Status

    Date Initiated:
    02-11-2020

    Technical Contact:
    Mark Krajewski

    Item:
    011

    Ballot:
    C16 (20-01)

    Status:
    In Balloting