- Weight Set Range: 2 kg - 20 g
- Set Capacity: 2,220 g
- Set Total Pieces: 3
- Protective Case: Included
- Construction: Two-piece
- Density at 20°C: 2 kg is 7.95 g/cm3; 1 kg and below are 8.03 g/cm3
- Dimensions in Case: 5 in x 13 in x 16 in (12.7 cm x 33.02 cm x 40.64 cm) (LxHxW)
- Set Contents: 20 g; 2 kg; 200 g
- Weight Material: 2 kg is 316 Stainless Steel; ≤1 kg are Troemner Alloy 8
- Weight Origin (USA): USA
- Calibration Certificate: ISO/IEC 17025 Accredited Certificate
- ASTM Class: 1
Ohaus CalPak ASTM Calibration Weight Sets 2kg-20g CL1 Accrd TR
Item#: 30391783This Class 1 calibration weight set from Ohaus provides highly accurate reference standards for calibrating high precision balances with readability down to 0.1 mg. The set includes three two-piece stainless steel and alloy weights ranging from 2 kg to 20 g, all supplied in a protective case with an ISO/IEC 17025 accredited certificate. Designed for traceability and long-term stability, these ASTM Class 1 weights offer exceptional consistency for demanding laboratory and metrology applications.
$2,080.00 $1,872.00
Applications
Use Class 1 as a primary reference to calibrate other mass standards and use for traceability between national mass standards and ASTM Class 2 weights and lower. Class 1 is appropriate for calibrating high-precision balances with readability as low as 0.1mg.
Construction
Two-piece
Design Features
Knob style weights 50kg–1g are cylindrical with knob. Cal-Pak 5kg weight is a grip handle weight. Cylindrical style weights 1kg–5k have groove. Cylindrical grip style weights 4kg–30kg have recessed grip. Cylindrical weights 10g–600g are straight cylinder.










