INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390931)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390931)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390931) is a high-precision calibration weight designed for ultra-accurate mass calibration and verification of analytical, comparator, and high-resolution balances. Manufactured to meet strict OIML Class E1 requirements, this weight delivers exceptional accuracy, stability, and traceability for critical laboratory and metrology applications.

This Class E1 calibration weight features a robust one-piece cylindrical construction that ensures excellent mechanical stability and long-term dimensional integrity. Made from Troemner Alloy 8, it offers uniform density, high corrosion resistance, and consistent performance even in demanding calibration environments. A dedicated protective case is included to safeguard the weight from contamination and mechanical damage during storage and transport.

Key Features

• OIML Class E1 classification for ultra-high accuracy mass calibration

• One-piece cylindrical construction for maximum stability and durability

• Manufactured from Troemner Alloy 8 for consistent density and corrosion resistance

• Suitable for high-precision reference and primary calibration applications

• Tight tolerance and low uncertainty for dependable calibration results

• Protective storage case included to preserve calibration integrity

• Manufactured in the USA to ensure quality, consistency, and traceability

Technical Specifications

• Weight value: 2 kg

• OIML class: E1

• Uncertainty: 0.25 mg

• Weight tolerance: 1 mg

• Construction: One-piece

• Design: Cylindrical

• Material: Troemner Alloy 8

• Density at 20 °C: 8.03 g/cm³

• Dimensions (H × Ø): 3.42 × 2.63 in (8.674 × 6.685 cm)

• Dimensions in case (H × Ø): 4.5 × 3.5 in (11.43 × 8.89 cm)

• Protective case: Included

• Country of origin: USA

Applications

• Calibration and verification of analytical and high-resolution balances

• Reference mass standards in metrology and calibration laboratories

• Pharmaceutical, chemical, and academic laboratories requiring extreme accuracy

• Quality control and regulatory compliance testing