From NCMA eNews
August 2, 2018
Sampling and testing of CMU is commonly done in accordance with ASTM C140, Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Unit. Some tests that are usually done for CMU include, compressive strength test, absorption test, and minimum normalized web area test. For more information on sampling and testing CMU see TEK 18-2C Sampling and Testing Concrete Masonry Units.