The backbone of many ASTM standard test methods is a comprehensive laboratory study that supports the Precision and Bias statement. When an interlaboratory study is completed, the details are documented in a Research Report. Research Reports can contain a list of participating laboratories, description of samples, a copy of the laboratory instructions, the equipment/apparatus used, a copy of the raw data, a statistical summary, and a copy of the precision and bias statement. See links below for the current research reports available on the website. For all other research reports, please contact ASTM Customer Service.