Work Item
ASTM WK58354

New Practice for Measuring Chemical Emissions from Spray Polyurethane Foam (SPF) Insulation Samples in a Large-Scale Ventilated Enclosure

1. Scope

1.1 This practice describes procedures for measuring the chemical emissions of volatile and semi-volatile organic compounds (VOCs and SVOCs) from spray polyurethane foam (SPF) insulation samples in a large-scale ventilated enclosure. 1.2 This practice is used to identify emission rates and factors during SPF application and up to three days following application. 1.3 This practice can be used to generate emissions data for research activities or modeled for the purpose to inform potential re-entry and re-occupancy times. Potential reentry and re-occupancy times only apply to the applications that meet manufacturer guidelines and are specific to the tested formulation. 1.4 This practice describes emission testing at ambient room and application surface temperatures recognizing chemical emissions may be greater should the substrate be above ambient temperature. 1.5 This practice does not address all SPF chemical emissions. The practice addresses specific compounds of potential health concern including methylene diphenyl diisocyanate (MDI), polymeric MDI (p3-MDI, p4-MDI), flame retardants, aldehydes, and VOCs including blowing agents, and catalysts. Specific chemicals are discussed in this standard. However, alternative chemical formulations within these functional use classes can be quantified (see target compound and generic formulation list in the Appendix). Other SPF chemicals such as polyols, emulsifiers, and surfactants are not addressed by this standard practice. Particulate sizing and distribution are also outside the scope of this standard practice. 1.6 Emission rates during application are determined from air phase concentration measurements that may include particle bound chemicals. SVOC deposition to floors and ceilings is also quantified for post application modeling inputs. SVOC emission rates and other data should only be used for modeling purposes for the duration of data collection. 1.7 Four isocyanates quantification methods are described. The isocyanate method chosen should consider safety issues such as flammability, the expected concentration and presence of isocyanate aerosol during the phase of interest (during and post application), and if the tested SPF is high or low pressure. 1.8 This practice references similar standard practices for design, construction, performance evaluation, and use of full-scale chambers for chemical emission testing. 1.9 This practice references methods for the collection and analysis of air samples. 1.10 This practice applies to two component high pressure and two component low pressure formulations of open-cell and closed-cell SPF insulation. 1.11 Units--The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 1.12 This standard does not purport to address all of the safety concerns, if any, associated with its use. The application of SPF in a ventilated enclosure has the potential to generate a hazardous condition putting the individual responsible for spraying inserts at risk. It is the responsibility of the user of this standard to establish appropriate health and safety procedures and appropriate certified personal protective equipment to avoid chemical exposure. 1.13 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.

Keywords

indoor air quality; emissions; environmental concentration; spray polyurethane foam; full-scale ventilated enclosure; closed cell SPF; open cell SPF; reentry times; re-occupancy times; high pressure application; low pressure application

Rationale

The data are useful to identify potential worker exposures and evaluate re-entry times for trade workers and re-occupancy times for building occupants.

The title and scope are in draft form and are under development within this ASTM Committee.

Details

Developed by Subcommittee: D22.05

Committee: D22

Staff Manager: Ashley Wiand

Work Item Status

Date Initiated: 03-22-2017

Technical Contact: Richard Wood

Item: 001

Ballot: D22.05 (20-03)

Status: Will Reballot Item

Item: 007

Ballot: D22 (22-01)

Status: Ballot Item Approved

Item: 001

Ballot: D22 (22-04)

Status: Ballot Item Approved