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ASTM C945-05(2012)

Historical Reaffirmation

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

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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.


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.

SDO ASTM: ASTM International
Document Number C945
Publication Date March 1, 2012
Language en - English
Page Count 11
Revision Level 05(2012)
Supercedes
Committee C16.40
Publish Date Document Id Type View
Sept. 1, 2005 C0945-05 Revision
March 1, 2023 C0945-05R23 Reaffirmation
Sept. 1, 2017 C0945-05R17 Reaffirmation
March 1, 2012 C0945-05R12 Reaffirmation
Jan. 1, 2000 C0945-81R00 Reaffirmation
Jan. 1, 2000 C0945-81R93 Reaffirmation