Certificate NVLAP - Standard Weight Set, 500mg-1mg, ASTM 1

Adjusted to Meet or Exceed ASTM Class 1 Tolerances with NVLAP Certificate Weights from 5mg to 30kg are Stainless Steel. Weights from 1mg to 2mg are Aluminum. Weight Sets include a Polycarbonate Case. Individual Weights up to 500mg include a Polypropylene Case. Weights from 1g to 2kg include a Polycarbonate Case. Weights from 4kg to 30kg include a Polypropylene Case. Product Specifications ASTM Class 1