INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390949)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390949)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390949) is a high-precision calibration weight designed for ultra-accurate mass calibration and verification. Manufactured in accordance with OIML E1 standards and supplied with an ISO/IEC 17025 accredited calibration certificate, this weight is intended for use with analytical and microbalances where the highest level of accuracy and traceability is required.

This E1 class weight features a one-piece aluminum construction that ensures excellent stability, uniform density, and long-term reliability. Its flat design allows safe handling and precise placement on balance pans, minimizing the risk of tipping or contamination. Each weight is delivered in a protective case to maintain cleanliness and preserve calibration integrity during storage and transport.

Key Features

• OIML E1 classification for ultra-high accuracy mass calibration

• Supplied with ISO/IEC 17025 accredited calibration certificate

• Very low uncertainty suitable for critical measurement applications

• One-piece construction for enhanced stability and durability

• Flat design for secure handling and accurate placement

• High-quality aluminum material with consistent density

• Protective storage case included to maintain precision over time

• Manufactured in the USA for assured quality and traceability

Technical Specifications

• Weight value: 2 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: Aluminum (3003-H14 aluminum)

• Density at 20 °C: 2.70 g/cm³

• Dimensions (L × H × W): 0.11 × 0.08 × 0.16 in (0.28 × 0.203 × 0.41 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

• Quality control and research requiring ultra-high mass accuracy

• Pharmaceutical, chemical, and academic laboratory environments