ASTM C945 - 05(2012)

    Standard Practice for Design Considerations and Spray Application of a Rigid Cellular Polyurethane Insulation System on Outdoor Service Vessels

    Active Standard ASTM C945 | Developed by Subcommittee: C16.40

    Book of Standards Volume: 04.06


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    Significance and Use

    This practice facilitates the selection and application of an insulation system for use at service temperatures between 30 and + 107°C (22 and + 225°F). Although the successful installation of spray-applied PUR/PIR is influenced by many factors, this practice treats those four areas found to be of major importance:

    (1) Substrate preparation,

    (2) Substrate priming,

    (3) Insulation application, and

    (4) Protective coatings.

    Abrasive blasting, primer application, spray application of the insulation, and protective coating application each contribute their unique health and safety hazards to the job site and will be dealt with in more detail under their respective headings.

    1. Scope

    1.1 This practice concerns itself with the substrate preparation and priming, the selection of the rigid cellular polyurethane system, and the protective insulation coatings for outdoor service equipment.

    Note 1—For the purpose of this practice, polyurethane is defined to mean either polyurethane or polyisocyanurate and is hereafter referred to as PUR/PIR.

    1.2 The values given in inch-pound are to be regarded as the standard. The values given in parentheses are for information only.

    1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.


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

    National Association of Corrosion Engineers Standard

    TM-01-70 Visual Surface Preparation Panels Available from NACE International (NACE), 1440 South Creek Dr., Houston, TX 77084-4906, http://www.nace.org.

    ASTM Standards

    C168 Terminology Relating to Thermal Insulation

    D883 Terminology Relating to Plastics

    D1600 Terminology for Abbreviated Terms Relating to Plastics

    D2200 Practice for Use of Pictorial Surface Preparation Standards and Guides for Painting Steel Surfaces

    American National Standards

    Z87.1 Practice for Occupational and Educational Eye and Face Protection Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.


    ICS Code

    ICS Number Code 83.100 (Cellular materials)

    UNSPSC Code

    UNSPSC Code 30140000(Insulation)


    DOI: 10.1520/C0945-05R12

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