Since Type OO and OOO durometers test soft rubber, foams, gels and other very soft non-metallics, it is possible for the user to imbed the foot of the gauge into the test specimen and obtain false readings. To obtain accurate readings using a durometer, the operator must develop a proper "feel" for the gauge. Durometer Kit for OO and OOO durometers gives the user the ability to develop the proper "feel". While not to be used for calibration purposes, the kit also enables the user to perform a quick check for the proper operation of the durometer. The kit consists of three color-coded test blocks each measuring 1/4" x 2" x 2". The test block kit is furnished with a sturdy magnetic-latching carrying case with the true readings for each block on the inside cover of the case. A certificate of conformance is also available for users who need documentation of traceability to NIST.

      The Type D durometer tests the hardness of hard rubber and plastics. To obtain accurate readings using a durometer, one must develop a proper "feel" for the gauge. Durometer Block Kit for D durometers gives the user the ability to develop the proper "feel". While not to be used for calibration purposes, the kit also enables the user to perform a quick check for the proper operation of the durometer. The kit consists of three color-coded test blocks each measuring 1/4" x 2" x 2". The test block kit is furnished with a sturdy magnetic-latching carrying case with the true readings for each block on the inside cover of the case. A certificate of conformance is also available for users who need documentation of traceability to NIST.