Ohaus Troemner OIML Precision Weights (USA) Weight Set F2 Wt Set(28), 5 kg-1 mg, NVLAP 30390838

The Ohaus Troemner OIML Precision Weights F2 Weight Set (28 pieces) with a range from 5 kg to 1 mg is a certified calibration weight set used for precise balance calibration and verification.

Key Features:

• Part Number: 30390838
• Weight set range: 5 kg down to 1 mg
• Set total pieces: 28
• Set capacity: 11.11 kg total
• OIML Class: F2 tolerance
• Calibration certificate: ISO/IEC 17025 Accredited
• Protective case included
• Weight materials vary by size: 500 mg to 5 mg are 316 Stainless Steel; below 5 mg are Aluminum; 1 kg to 1 g are Troemner Alloy 8; above 1 kg are 316 Stainless Steel
• Construction: weights 1 g and above are two-piece cylindrical with handling knob; 500 mg and below are one-piece flat with one end turned up for handling with forceps
• Density at 20°C varies: 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: 18.542 cm (L) x 38.608 cm (H) x 48.768 cm (W)

Advantages:

• Wide weight range from 5 kg to 1 mg allows calibration of diverse balances requiring precise mass standards across multiple scales
• ISO/IEC 17025 accredited calibration certificate ensures traceability and compliance with high-precision lab standards
• Use of materials with stable densities and low magnetic properties (Troemner Alloy 8, stainless steel, aluminum) provides excellent weight stability and corrosion resistance
• Protective case aids safe storage and transportation, preserving accuracy
• Two-piece construction for weights 1 g and above facilitates easier handling and reduces contamination risk
• Weights designed per OIML F2 class assure tight tolerance control suitable for laboratory and industrial calibration