INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390941)
The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390941) is a high-precision calibration weight designed for ultra-accurate mass calibration and verification of analytical and microbalances. Manufactured to meet OIML Class E1 standards, this weight provides exceptional accuracy, stability, and traceability for critical weighing applications in laboratory and metrology environments.
This Class E1 calibration weight features a one-piece cylindrical design that ensures excellent mechanical stability and long-term reliability. Made from Troemner Alloy 8, the weight offers superior density uniformity, corrosion resistance, and dimensional stability. Each unit is supplied with a protective storage case to prevent contamination and physical damage, helping maintain calibration integrity over time.
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 excellent material consistency
Extremely low uncertainty suitable for reference and primary standards
Tight tolerance to support precise analytical balance calibration
Protective storage case included for safe handling and storage
Manufactured in the USA to ensure quality and traceability
Technical Specifications
Weight value: 1 g
OIML class: E1
Uncertainty: 0.003 mg
Weight tolerance: 0.01 mg
Construction: One-piece
Design: Cylindrical
Material: Troemner Alloy 8
Density at 20 °C: 8.03 g/cm³
Dimensions (H × Ø): 0.24 × 0.23 in (0.605 × 0.592 cm)
Dimensions in case (H × Ø): 2.5 × 2 in (6.35 × 5.08 cm)
Protective case: Included
Country of origin: USA
Applications
Calibration and verification of analytical and microbalances
Reference mass standards in metrology and calibration laboratories
Pharmaceutical, chemical, and academic research requiring extreme accuracy
Quality control and regulatory compliance testing
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