The release of volatile organic chemicals (VOCs) from everyday products has been the subject of increasing public concern in the last couple of decades, and new regulations are poised to place the emphasis on manufactures carrying out the analysis rather than just test laboratories. This standard describes practices and procedures for calibration, validation and proficiency checks of analytical instrumentation for the analysis of compounds emitted from products and materials, enabling the user to be confident of the results gathered. The new Standard Practice will describe the following procedures: Calibration: Procedural examples of calculations for determining volumes and concentrations of dilutions. It will explain the actions for loading from gas and liquid primary standards. As well as giving advice on the difficulties with SVOCs i.e. Hexadecane solubility. It will also show diagrams and instruction for loading for all systems and possibly include videos of these procedures. Check standards: These tools are used for monitoring system performance and will highlight issues such as peak shape, peak ratios, carryover etc with compounds related to emissions from materials which are subsequently analysed by thermal desorption/GCMS analysis. A set of approximately 10 relevant compounds are loaded onto a tube and used as a quick check of a system. These can be pre loaded or prepared on site, procedures of which will be discussed.
Manufacturing industry, Quality control, R and D. Test laboratories. Research facilities. Government Agencies
KeywordsThermal desorption; Validation; Quality control; VOCs; calibration
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development