A compact ASTM Class 6 weight set for performing quality control checks on balances and scales in laboratories, small production environments and classrooms is available from Alliance Scale, Inc. of Canton, Massachusetts. Alliance/Ohaus ASTM Class 6 weight sets let users perform daily quality control checks on balances and scales and calibrate them before operation. Featuring 12 stainless steel weights and tweezers for proper handling, the sets are available in nine calibration variations including 50g x 10mg, 500g x 1g, 2000g x 1g, and several other sizes in between.  Packaged within foam inside a wooden box, Alliance/Ohaus ASTM Class 6 weight sets are made from stainless steel, are lead-free and clean. Typical applications include commercial, educational, food, small industrial, medical, laboratory and pharmaceutical daily QC calibration.