5.1 Other standards are used to collect the gross sample:
Practice D2234/D2234M allows for one division of the gross
sample before crushing. The mass and top size of the gross or
divided sample collected by using these guides and practices
are usually too large for chemical or physical testing. Practice
D2013 provide instructions for reducing and dividing the gross
or divided sample, by on-line or off-line processes, or both, to
a top size and mass suitable to the performance of testing. Any
bias in the gross or divided sample before adherence to this
practice will remain in the final sample resulting from use of
this practice. Therefore, carefully select the standard to be used
to collect the gross sample.