INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390945)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390945)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390945) is a precision calibration weight designed for ultra-accurate mass calibration and verification of analytical and microbalances. Manufactured in accordance with OIML Class E1 requirements and supplied with an ISO/IEC 17025 accredited calibration certificate, this weight provides excellent traceability and reliability for critical weighing applications.

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

Key Features

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

• Supplied with ISO/IEC 17025 accredited calibration certificate

• Extremely low uncertainty suitable for reference and primary standards

• One-piece construction for superior stability and durability

• Flat design for safe handling and accurate positioning

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

• Protective case included to maintain cleanliness and calibration integrity

• Manufactured in the USA for assured quality and traceability

Technical Specifications

• Weight value: 50 mg

• OIML class: E1

• Calibration certificate: ISO/IEC 17025 accredited

• Uncertainty: 0.001 mg

• Weight tolerance: 0.004 mg

• Construction: One-piece

• Design: Flat

• Material: 304 stainless steel

• Density at 20 °C: 7.95 g/cm³

• Dimensions (L × H × W): 0.32 × 0.09 × 0.36 in (0.81 × 0.216 × 0.92 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