TY  - RPRT
TI  - Standard Reference Materials : Methods and procedures used at the National Bureau of Standards to certify sulfur in coal SRM's for sulfur content, calorific value, ash content/
AU  - Gills, Thomas E
PY  - 1984
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS SP 260-94
DO  - 10.6028/NBS.SP.260-94
ER  -