Work Item
ASTM WK84206

Revision of D2013/D2013M-21 Standard Practice for Preparing Coal Samples for Analysis


Sample division is the process of producing statistically similar fractions of a large original sample such that all fractions are physically and chemically similar. Rotary dividers typically give smaller division errors than slotted riffles but may require more time for processing. Our goal is to include guidance and diagrams of correct rotary divider design and operating technique, and incorporate language and diagrams of generic rotary dividers for illustrative purposes.


Developed by Subcommittee: D05.23

Committee: D05

Staff Manager: Melissa Marcinowski

Work Item Status

Date Initiated: 11-15-2022

Technical Contact: Stephen Smith

Item: 000