INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390946)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390946)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390946) is a high-precision calibration weight designed for ultra-accurate mass calibration and verification of analytical and microbalances. Manufactured in compliance with OIML Class E1 standards and supplied with an ISO/IEC 17025 accredited calibration certificate, this weight ensures excellent traceability and reliability for critical weighing applications.

This Class E1 weight is engineered for laboratories that demand minimal measurement uncertainty. Its one-piece construction provides superior mechanical stability, while the flat design allows safe handling and precise placement on balance pans. Made from high-quality 304 stainless steel, the weight offers excellent corrosion resistance and long-term stability. A protective case is included to prevent contamination and physical damage during storage and transport.

Key Features

• OIML Class E1 classification for ultra-high accuracy calibration

• Supplied with ISO/IEC 17025 accredited calibration certificate

• Extremely low uncertainty suitable for reference and primary standards

• One-piece construction for enhanced stability and durability

• Flat design for secure handling and accurate positioning

• 304 stainless steel construction for corrosion resistance and long service life

• Protective storage case included to maintain calibration integrity

• Manufactured in the USA for assured quality and traceability

Technical Specifications

• Weight value: 20 mg

• OIML class: E1

• Calibration certificate: ISO/IEC 17025 accredited

• Uncertainty: 0.001 mg

• Weight tolerance: 0.003 mg

• Construction: One-piece

• Design: Flat

• Material: 304 stainless steel

• Density at 20 °C: 7.95 g/cm³

• Dimensions (L × H × W): 0.22 × 0.13 × 0.25 in (0.57 × 0.335 × 0.63 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