WEIGHT SETS CLASS F 1 Ohaus (80780439)

WEIGHT SETS CLASS F 1 Ohaus (80780439)

The WEIGHT SETS CLASS F 1 Ohaus (80780439) is a precision calibration weight kit designed for accurate verification and routine calibration of analytical balances and microbalances across low-to-mid mass ranges. Conforming to OIML Class F1, this set supports stable weighing performance for laboratories, research facilities, and quality control environments. It covers 100 g down to 1 mg, making it suitable for multi-point checks such as sensitivity testing, repeatability verification, and linearity evaluation. 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 weights organized and protected.

Key Features

• OIML Class F1 accuracy class for reliable calibration and verification

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

• Range from 100 g to 1 mg for comprehensive multi-point balance checks

• 21-piece set with 211.11 g total set capacity

• Practical construction for better handling and stability:

  • 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

Applications

• Calibration and verification of analytical balances and microbalances

• Sensitivity tests, repeatability checks, and minimum weight verification

• Low-to-mid range linearity testing using multiple weight points

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

Specifications

• Product Type: Calibration Weight Set

• Brand / Model: Ohaus 80780439

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

• OIML Class: F1

• Weight Set Range: 100 g to 1 mg

• Set Capacity: 211.11 g

• Total Pieces: 21

• 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 (21 pcs)

• 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)