1. Scope
This standard describes the procedures to collect chemical emissions from spray polyurethane (SPF) insulation samples using micro-scale environmental test chambers. Conventional small-scale chambers described in ASTM Guide D 5116 are routinely used to test products for their emissions of VOCs of concern; however, some SVOCs, e.g. amine catalysts, flame retardant and isocyanates, can potentially adhere to chamber walls and significantly bias the test results. This practice describes the use of micro-scale test chambers and operating conditions to minimize wall adhesion and maximize recovery of the SVOCs. VOCs, e.g. blowing agents, and SVOCs, e.g. amine catalysts and flame retardant are captured onto sorbent tubes and analyzed with TD-GC-MS (described in a companion work item) or other suitable analytical method. Isocyanate emissions, e.g. MDI, must be determined with a specialized micro chamber, which is currently under development.
Currently, there are no standardized test methods that adequately address measuring the chemical emissions of SPF insulation products. This standard will address that need in conjunction with Work Item WK30960 Standard Practice for Spraying, Sampling, Packaging, and Test Specimen Preparation of Spray Polyurethane Foam (SPF) Insulation Samples for Environmental Chamber Emissions Testing. The standard may be used by product manufacturers, air quality labs, regulatory agencies, etc.
Keywords
Micro chamber, Spray Polyurethane Foam, SPF, insulation, product emissions, SVOC, VOC
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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