This practice covers the requirements for the apparatus
and equipment used to prepare specimens for the determination
of length change in hardened cement paste, mortar, and
concrete, the apparatus and equipment used for the determination
of these length changes, and the procedures for its use.
Methods for the preparation and curing of test specimens,
conditions of testing and curing, and detailed procedures
for calculating and reporting test results are contained in
applicable test methods.
This practice is intended to provide standard requirements
for apparatus common to many test methods used in
connection with cement and concrete and standardized procedures
for its use.