WEIGHT SETS CLASS F 2 Ohaus (30390831)
The WEIGHT SETS CLASS F 2 Ohaus (30390831) is a high-capacity precision calibration weight set designed for verifying balances and scales from 50 kg down to 1 mg. This set meets OIML Class F2 requirements and includes an ISO/IEC 17025 accredited calibration certificate for traceable documentation—ideal for QA/QC programs, audits, and controlled measurement environments. The protective case keeps weights secure and organized, while the construction is optimized for handling stability: 1 g and above use two-piece weights, and 500 mg and below use one-piece weights. Made in the USA.
Key Features
OIML Class F2 calibration weight set for reliable routine verification
ISO/IEC 17025 accredited calibration certificate for traceable records
Very wide range from 50 kg down to 1 mg for multi-point checks
Mixed construction for practicality and stability:
1 g and above: two-piece
500 mg and below: one-piece
Protective case included for safe storage and transport
Suitable for laboratories, manufacturing QC, and metrology work
Origin: USA
Applications
Calibration checks, linearity testing, and capacity verification for scales/balances
QA/QC documentation and compliance requirements (traceable certificate)
Metrology labs, production weighing stations, and inspection departments
Routine performance monitoring across low-mass to high-capacity ranges
Specifications
Brand / Model: Ohaus 30390831
Calibration Certificate: ISO/IEC 17025 Accredited Certificate
OIML Class: F2
Weight Set Range: 50 kg – 1 mg
Set Capacity: 100 kg
Total Pieces: 32
Protective Case: Included
Construction: 1 g and above are two-piece; 500 mg and below are one-piece
Density at 20°C:
Below 5 mg: 2.70 g/cm³
500 mg to 5 mg: 7.95 g/cm³
1 kg to 1 g: 8.03 g/cm³
Above 1 kg: 7.95 g/cm³
Dimensions in Case (L x H x W): 11.7 in x 19.7 in x 24.6 in (29.718 cm x 50.038 cm x 62.484 cm)
Set Contents:
50 kg
20 kg (x2)
10 kg
5 kg
2 kg (x2)
1 kg
500 g
200 g (x2) + 200 mg (x2)
100 g + 100 mg
50 g + 50 mg
20 g (x2) + 20 mg (x2)
10 g + 10 mg
5 g + 5 mg
2 g (x2) + 2 mg (x2)
1 g + 1 mg
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