Two cups are used by simply placing the tablet into the bottom of the first cup. It has a raised pointed grid pattern inside on the bottom. A second cup has a raised pointed grid pattern on the outside of the bottom cup. Placing the second cup in the first cup and rotating cups in opposite direction will quickly grind the tablet into a uniform powder.
Revision date indicates the date the MSDS or SDS was last revised. MSDS / SDS are
dated when they are originally issued AND when any significant change has been made
to the chemical compound or research has revealed a health or physical hazard different
from what was originally stated.