ASTM C945-05(2017)

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

SIGNIFICANCE AND USE
4.1 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.  
4.2 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.
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 concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

• Status: Historical
• Publication Date: 31-Aug-2017
• ICS: 83.100 - Cellular materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.40 - Insulation Systems

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C945 − 05 (Reapproved 2017)
Standard Practice for
Design Considerations and Spray Application of a Rigid
Cellular Polyurethane Insulation System on Outdoor Service
1
Vessels
This standard is issued under the fixed designation C945; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D2200 Practice for Use of Pictorial Surface Preparation
Standards and Guides for Painting Steel Surfaces
1.1 This practice concerns itself with the substrate prepara-
2.2 American National Standards:
tion and priming, the selection of the rigid cellular polyure-
Z87.1 Practice for Occupational and Educational Eye and
thane system, and the protective insulation coatings for outdoor
3
Face Protection
service equipment.
2.3 Clemtex Limited Standard:
NOTE 1—For the purpose of this practice, polyurethane is defined to
4
“Anchor Pattern Standard”
mean either polyurethane or polyisocyanurate and is hereafter referred to
as “PUR/PIR.” 2.4 National Association of Corrosion Engineers Standard:
5
TM-01-70 Visual Surface Preparation Panels
1.2 The values given in inch-pound are to be regarded as the
2.5 Other Documents:
standard. The values given in parentheses are for information
Safety Precautions in Handling and Spraying of PUR/PIR
only.
6,7
Systems
1.3 This standard may involve hazardous materials,
operations, and equipment. This standard does not purport to
3. Terminology
address all of the safety concerns, if any, associated with its
3.1 Definitions—Definitions included in Terminology C168,
use. It is the responsibility of the user of this standard to
Definitions D883, and Abbreviations D1600 apply to the terms
establish appropriate safety, health, and environmental prac-
used in this standard.
tices and determine the applicability of regulatory limitations
3.2 Definitions of Terms Specific to This Standard:
prior to use.
3.2.1 blasting—the process of cleaning surfaces by use of
1.4 This international standard was developed in accor-
abrasive particles propelled at high velocity upon the surface to
dance with internationally recognized principles on standard-
be cleaned.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3.2.2 coatings/coverings—ultraviolet ray-absorbing and
mendations issued by the World Trade Organization Technical
water-shedding protective materials applied over the urethane
Barriers to Trade (TBT) Committee.
foam.
3.2.3 density:
2. Referenced Documents
3.2.3.1 in-place density—the weight per unit volume of the
2
2.1 ASTM Standards:
cross section of foam from substrate to exposed surface,
C168 Terminology Relating to Thermal Insulation
including all skins (or surfaces).
D883 Terminology Relating to Plastics
3.2.3.2 core density—the weight per unit volume of a single
D1600 Terminology for Abbreviated Terms Relating to Plas-
layer of foam excluding top and bottom skins or (if present)
tics
interlayer skins.
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
3
Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Systems. 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Current edition approved Sept. 1, 2017. Published December 2017. Originally Available from Clemtex Ltd., P.O. Box 15214, Houston, TX 77020.
5
approved in 1981. Last previous edition approved in 2012 as C945 – 05 (2012). Available from NACE International (NACE), 1440 South Creek Dr., Houston,
DOI: 10.1520/C0945-05R17. TX 77084-4906, http://www.nace.org.
2 6
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Spray Polyurethane Foam Alliance (SPFA), 4400 Fair Lakes Ct, Suite 105,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Fairfax, VA, http://sprayfoam.org
7
Standards volume information, refer to the standard’s Document Summary page on Alliance for the Polyurethane Industry (API), 1300 Wilson Blvd Suite 800,
the ASTM website. Arlington, VA 22209, http://polyurethanes.org
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C945 − 05 (2017)
3.2.4 foam system—appropriate formulations of two liquid 5.1.3 Galvanized Metal Surfaces—Clean with an acceptable
components, polyisocyanate, or A side, and polyol, or B side, solvent, wash with water to remove deposits, spray with an
for intended applications. acceptable wash primer, and then coat all areas with an
acceptable
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C945 − 05 (Reapproved 2012) C945 − 05 (Reapproved 2017)
Standard Practice for
Design Considerations and Spray Application of a Rigid
Cellular Polyurethane Insulation System on Outdoor Service
1
Vessels
This standard is issued under the fixed designation C945; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
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 concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish
appropriate safety safety, health, and healthenvironmental practices and determine the applicability of regulatory limitations prior
to use.
1.4 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
2
2.1 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
2.2 American National Standards:
3
Z87.1 Practice for Occupational and Educational Eye and Face Protection
2.3 Clemtex Limited Standard:
4
“Anchor Pattern Standard”
2.4 National Association of Corrosion Engineers Standard:
5
TM-01-70 Visual Surface Preparation Panels
2.5 Other Documents:
6,7
Safety Precautions in Handling and Spraying of PUR/PIR Systems
3. Terminology
3.1 Definitions—Definitions included in Terminology C168, Definitions D883, and Abbreviations D1600 apply to the terms
used in this standard.
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.40 on Insulation Systems.
Current edition approved March 1, 2012Sept. 1, 2017. Published August 2012December 2017. Originally approved in 1981. Last previous edition approved in 20052012
as C945–05.C945 – 05 (2012). DOI: 10.1520/C0945-05R12. 10.1520/C0945-05R17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Available from Clemtex Ltd., P.O. Box 15214, Houston, TX 77020.
5
Available from NACE International (NACE), 1440 South Creek Dr., Houston, TX 77084-4906, http://www.nace.org.
6
Spray Polyurethane Foam Alliance (SPFA), 4400 Fair Lakes Ct, Suite 105, Fairfax, VA, http://sprayfoam.org
7
Alliance for the Polyurethane Industry (API), 1300 Wilson Blvd Suite 800, Arlington, VA 22209, http://polyurethanes.org
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C945 − 05 (2017)
3.2 Definitions of Terms Specific to This Standard:
3.2.1 blasting—the process of cleaning surfaces by use of abrasive particles propelled at high velocity upon the surface to be
cleaned.
3.2.2 coatings/coverings—ultraviolet ray-absorbing and water-shedding protective materials applied over the urethane foam.
3.2.3 density:
3.2.3.1 in-place density—the weight per unit volume of the cross section of foam from substrate to exposed surface, including
all skins (or surfaces).
3.2.3.2 core density—the weight per unit volume of a single layer of foam excluding top and bottom ski
...