Research Report RR:D05-1025
An Interlaboratory Study was conducted to establish precision statements for ASTM D5865, Standard Test Method for Gross Calorific Value of Coal and Coke. A ruggedness test trial (T1) completed in the year 2000 confirmed that disks made of quartz fiber are suitable for this purpose. A modification to the design of the quartz fisks tested in trial (T2), which eliminates contact of the coke sample with the sides of the combustion crucible reduced the variability of the results.
Committee D05 on Coal and Coke
Subcommittee D05.21 on Methods of Analysis