WEIGHT SETS CLASS F 2 Ohaus (30390851)

WEIGHT SETS CLASS F 2 Ohaus (30390851)

The WEIGHT SETS CLASS F 2 Ohaus (30390851) is a high-precision calibration weight set designed for verification and performance testing of analytical balances and microbalances. Conforming to OIML Class F2 and supplied with an ISO/IEC 17025 accredited calibration certificate, this set supports traceable calibration and documentation needs in regulated or quality-driven laboratories. With a range from 5 g down to 1 mg, it enables detailed multi-point checks for sensitivity, repeatability, and linearity across gram-to-milligram weighing. The mixed construction improves handling practicality: two-piece weights for 1 g and above, and one-piece weights for 500 mg and below. A protective case is included to keep weights clean, organized, and protected during storage and transport. Made in the USA.

Key Features

• OIML Class F2 calibration weight set for accurate balance verification

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

• Range from 5 g to 1 mg for detailed multi-point linearity and sensitivity checks

• Mixed construction for practical handling: two-piece (≥1 g) and one-piece (≤500 mg)

• Protective case included to reduce contamination risk and keep weights organized

• Made in the USA

Applications

• Traceable calibration support for analytical balances and microbalances

• Routine sensitivity, repeatability, and linearity verification from grams to milligrams

• Quality control and regulated labs requiring ISO/IEC 17025 documentation

• Suitable for pharmaceutical, chemical, research, education, and QC laboratories

Specifications

• Product Type: Calibration Weight Set

• Brand / Model: Ohaus 30390851

• Calibration Certificate: ISO/IEC 17025 Accredited Certificate

• OIML Class: F2

• Weight Set Range: 5 g – 1 mg

• Set Capacity: 11.11 g

• Total Pieces: 16

• 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 g and above: 8.03 g/cm³

• Dimensions in Case (H x Ø): 4.5 in x 3.5 in (11.43 cm x 8.89 cm)

• Set Contents: 5 g; (2) 2 g; 1 g; 500 mg; 200 mg (x2); 100 mg; 50 mg; 20 mg (x2); 10 mg; 5 mg; 2 mg (x2); 1 mg

• Weight Material:

  • ≥1 g: Troemner Alloy 8

  • 5 mg to 500 mg: 316 Stainless Steel

  • Below 5 mg: 3003-H14 Aluminum

• Origin: USA