Manufactured to both internal and international standards, i.e., ASTM and OIML standards, Ohaus individual masses and mass sets are available in a variety of styles for a wide range of uses. Click on each item code for full product details   Item Description Adjustment Tolerance 200-16 500 g x 1 g - weight set ASTM Class 6 201-16 1000 g x 1 g - weight set ASTM Class 6 210-16 50 g x 1 mg - weight set NBS Class "C" < 1 ≥ ASTM Class 6 211-16 100 g x 1 mg - weight set NBS Class "C" < 1 ≥ ASTM Class 6 212-16 500 g x 1 g - weight set ASTM Class 6 213-16 1000 g x 1 g - weight set ASTM Class 6 214-16 200 g x 1 mg - weight set NBS Class "C" < 1 ≥ ASTM Class 6 218-16 500 mg x 1 mg - weight set NBS Class "C" 238-16 2000 g x 1 g - weight set ASTM Class 6 241-02 50 g x 100 mg - weight set Ohaus internal standards 241-03 50 g x 1 g - weight set Ohaus internal standards 241-16 50 g x 10 mg - weight set NBS Class "C" < 1 ≥ ASTM Class 6 290-00 50 mg x 1 mg - weight set ASTM Class 4 291-01 50 g x 1 mg - weight set ASTM Class 4 292-01 100 g x 1 mg - weight set ASTM Class 4 294-P0 500 g x 100 g - weight set ASTM Class 4 296-P0 2 kg x 100 g - weight set ASTM Class 4 43503-00 500 g x 10 g - slotted weight set Ohaus internal standards 43504-00 500 g x 10 g - slotted weight set Ohaus internal standards 43504-01 5 N x 0.1 N - slotted weight set Ohaus internal standards 43505-00 500 g x 10 g - slotted weight set Ohaus internal standards 46206-00 1000 g x 10 g - hooked weight set Ohaus internal standards 46206-01 10 N x 0.1 N - hooked weight set Ohaus internal standards