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HMA-622 Load Ring and HMA-623 Gage Blocks are each NIST Traceable and used together to verify applied loads and height measurement of HM-685 Superpave™ and HM-687 Brovold Superpave™ Gyratory Compactors. The 5,000lbf (22.2Kn) Load Ring with dial gauge and individually serial-numbered 3x1in (76x25mm) WxH, hard-steel Gage Blocks verify calibration of the compactors in accordance with the test method and calibration schedule. Load Rings and Gage Blocks are purchased separately. HMA-623 Gage Blocks are sold individually and four are required for verifying.
HMA-623: 3 x 1in (76 x 25mm) WxH
HMA-622: 10.25 x 7.25in (260 x 184mm) WxH
HMA-622: 14.0lbs (6.35kg)
HMA-623: 3.0lbs (1.36kg)
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