WEIGHT SETS CLASS F 1 Ohaus (80780441)

WEIGHT SETS CLASS F 1 Ohaus (80780441)

The WEIGHT SETS CLASS F 1 Ohaus (80780441) is a precision calibration weight kit designed for accurate verification and routine calibration of analytical balances and microbalances. With an OIML Class F1 rating, this set supports stable weighing performance for laboratory, research, and quality control environments that require dependable reference masses. The kit covers a wide low-to-mid range from (2) 200 g down to 1 mg, making it suitable for multi-point linearity checks, sensitivity testing, and repeatability verification. It includes an ISO/IEC 17025 accredited calibration certificate to support traceability and compliance requirements, and it comes in a protective case to help keep the weights secure, organized, and protected from contamination.

Key Features

• OIML Class F1 accuracy class for reliable calibration and verification

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

• Broad range from (2) 200 g down to 1 mg for comprehensive multi-point checks

• 23-piece set with 600 g 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

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

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

Specifications

• Product Type: Calibration Weight Set

• Brand / Model: Ohaus 80780441

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

• OIML Class: F1

• Weight Set Range: (2) 200 g to 1 mg

• Set Capacity: 600 g

• Total Pieces: 23

• 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 (23 pcs)

• 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)