INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390930)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390930)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390930) is a high-precision calibration weight designed for ultra-accurate mass calibration and verification of analytical, comparator, and high-resolution balances. Manufactured in accordance with OIML Class E1 standards, this weight delivers excellent accuracy, stability, and traceability for critical laboratory and metrology applications.

This Class E1 calibration weight features a robust one-piece cylindrical construction that ensures outstanding mechanical stability and long-term dimensional consistency. Made from Troemner Alloy 8, the weight provides uniform density, high corrosion resistance, and reliable performance over extended use. A dedicated protective case is included to safeguard the weight from contamination and physical 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

• Low uncertainty and tight tolerance suitable for reference and primary calibration

• Protective storage case included for safe handling and long-term accuracy

• Designed for professional laboratory and metrology use

• Manufactured in the USA for assured quality and full traceability

Technical Specifications

• Weight value: 5 kg

• OIML class: E1

• Uncertainty: 0.5 mg

• Weight tolerance: 2.5 mg

• Construction: One-piece

• Design: Cylindrical

• Material: Troemner Alloy 8

• Density at 20 °C: 8.03 g/cm³

• Dimensions (H × Ø): 5.58 × 3.13 in (14.173 × 7.938 cm)

• Dimensions in case (L × H × W): 4 × 7.5 × 10 in (10.16 × 19.05 × 25.4 cm)

• Protective case: Included

• Country of origin: USA

Applications

• Calibration and verification of analytical, comparator, 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