Research Report RR:D20-1256
An interlaboratory study was conducted by five laboratories testing three different Olefin plastic materials to establish precision statements for D1603. Every "test result" represents the average of two determinations. Each laboratory reported three replicate test results for each material.
D1603-20 Standard Test Method for Carbon Black Content in Olefin Plastics
Committee D20 on Plastics
Subcommittee D20.70 on Analytical Methods