WEIGHT SETS CLASS F 1 Ohaus (80780458)

WEIGHT SETS CLASS F 1 Ohaus (80780458)

The WEIGHT SETS CLASS F 1 Ohaus (80780458) is a high-accuracy calibration weight kit designed for precise verification and routine calibration of analytical and precision balances across a wide mass range. Conforming to OIML Class F1, this set supports consistent weighing performance for laboratories, research facilities, and industrial quality control environments. With coverage from 20 kg down to 1 mg and 30 individual pieces, it enables comprehensive multi-point checks for linearity, sensitivity, and repeatability. The set includes an ISO/IEC 17025 accredited calibration certificate to support traceability and compliance requirements, and it comes with a protective case to keep the weights organized and protected during storage and handling.

Key Features

• OIML Class F1 accuracy class for reliable calibration and verification

• ISO/IEC 17025 accredited calibration certificate included for traceability and compliance support

• Wide range from 20 kg to 1 mg for comprehensive multi-point balance checks

• 30-piece set with 40 kg total set capacity

• Practical construction for stable handling and accuracy:

  • Two-piece weights for 1 g and above

  • One-piece weights for 500 mg and below

• Protective case included to reduce contamination risk and simplify storage

• Made in the USA

Applications

• Calibration and verification of analytical and precision balances

• Multi-point linearity checks across low-to-high weighing ranges

• Sensitivity tests, repeatability checks, and minimum weight verification

• QC and regulated workflows requiring traceable standards (ISO/IEC 17025)

Specifications

• Product Type: Calibration Weight Set

• Brand / Model: Ohaus 80780458

• Calibration Certificate: ISO/IEC 17025 Accredited Certificate (included)

• OIML Class: F1

• Weight Set Range: 20 kg to 1 mg

• Set Capacity: 40 kg

• Total Pieces: 30

• Protective Case: Included

• Construction:

  • 1 g and above: two-piece

  • 500 mg and below: 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 (30 pcs)

• 20 kg (1)

• 10 kg (1)

• 5 kg (1)

• 2 kg (2)

• 1 kg (1)

• 500 g (1)

• 200 g (2)

• 100 g (1)

• 50 g (1)

• 20 g (2)

• 10 g (1)

• 5 g (1)

• 2 g (2)

• 1 g (1)

• 500 mg (1)

• 200 mg (2)

• 100 mg (1)

• 50 mg (1)

• 20 mg (2)

• 10 mg (1)

• 5 mg (1)

• 2 mg (2)

• 1 mg (1)