Standard Practice for Design Considerations and Spray Application of a Rigid Cellular Polyurethane Insulation System on Outdoor Service Vessels
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.
ASTM C945-05(2023) is the standard practice established by ASTM International for the design, selection, and spray application of rigid cellular polyurethane (PUR/PIR) insulation systems on outdoor service vessels. This standard is essential for ensuring insulation performance, longevity, and safety for vessels operating at temperatures between −30°C and +107°C (−22°F to +225°F). The document provides comprehensive guidelines on substrate preparation, substrate priming, insulation spray application, and application of protective coatings. These practices address both technical and safety considerations, supporting reliable insulation for tanks, pipes, and similar outdoor service equipment.
1. Substrate Preparation
2. Substrate Priming
3. Insulation Application
4. Protective Coatings
Другие стандарты ASTM
5. Safety and Health
ASTM C945-05(2023) is widely applicable in industries where outdoor service vessels require efficient thermal protection, including:
The standard helps ensure thermal efficiency, corrosion resistance, and physical durability of insulated structures, extending the operational lifespan of equipment and reducing maintenance costs. Adhering to these guidelines supports regulatory compliance and enhances plant safety, particularly in climates or operations with significant temperature variation or environmental exposure.
Several other standards and guidelines are referenced or align with ASTM C945-05(2023), including:
Professionals should consult these related standards to ensure comprehensive compliance during project planning and execution.
Keywords: rigid polyurethane insulation, spray application, outdoor service vessels, substrate preparation, protective coatings, ASTM C945-05(2023), PUR/PIR, thermal insulation standards, outdoor equipment insulation, safety in insulation application.