WEIGHT SETS CLASS F 1 Ohaus (80780445)

WEIGHT SETS CLASS F 1 Ohaus (80780445)

The WEIGHT SETS CLASS F 1 Ohaus (80780445) is a precision calibration weight kit designed for accurate verification and routine calibration of analytical balances and microbalances. Conforming to OIML Class F1, this set supports stable weighing performance in laboratories, research facilities, and quality control environments that require dependable reference masses. Covering 500 g down to 1 mg, it enables multi-point checks for linearity, sensitivity, and repeatability across low-to-mid weighing ranges. The protective case helps keep the weights organized, protected, and cleaner during storage and handling, which is important for maintaining accuracy—especially at milligram levels.

Key Features

• OIML Class F1 accuracy class for dependable calibration and verification

• Wide range from 500 g to 1 mg for comprehensive multi-point balance checks

• 24-piece set with 1.11 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 balances and microbalances

• Sensitivity tests, repeatability checks, and minimum weight verification

• Linearity testing across low-to-mid mass ranges using multiple weight points

• Quality control and measurement assurance programs in labs and industry

Specifications

• Product Type: Calibration Weight Set

• Brand / Model: Ohaus 80780445

• OIML Class: F1

• Weight Set Range: 500 g to 1 mg

• Set Capacity: 1.11 kg

• Total Pieces: 24

• 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 g and above: 8.03 g/cm³

• Dimensions in Case (L x H x W): 3.5 in x 7 in x 8 in (8.89 cm x 17.78 cm x 20.32 cm)

Set Contents (24 pcs)

• 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)