Providing worldwide interlaboratory testing since 1971


Hardness Tests

Each CTS hardness test includes TWO blocks that have been pre-tested for homogeneity and are ready to test. The participants keep the blocks upon completion of testing to use as future reference samples or in training exercises.

Copyright © CTS, Inc., 2018

Collaborative Testing Services, Inc.
P.O. Box 650820, Sterling, Virginia, USA 20165-0820
Phone: 1-571-434-1925