or
Analytical Weight Set Calibrated to ASTM Class 1. Consists of: 50g 2x20g 10g 5g 2x2g 1g (stainless steel) 500mg 2x200mg 100mg 50mg (stainless steel sheet metal) 2x20mg 10mg 5mg 2x2mg 1mg (aluminum). With polypropylene case and NIST/NVLAP Certificate.