INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390947)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390947)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390947) is a high-precision calibration weight designed for ultra-accurate mass calibration and verification of analytical and microbalances. Manufactured to strict OIML E1 standards and supplied with an NVLAP accredited calibration certificate, this weight provides excellent traceability and reliability for critical weighing applications.

This Class E1 weight is engineered for laboratories that demand the highest level of measurement accuracy. It features a flat design with one end turned up, allowing easier and safer handling using forceps or gloves. Constructed from high-quality 304 stainless steel, the weight offers superior stability, corrosion resistance, and long-term durability. A 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 calibration

• Supplied with NVLAP accredited calibration certificate for full traceability

• Flat design with one end turned up for easier and safer handling

• Extremely tight tolerance suitable for primary and reference standards

• High-quality 304 stainless steel construction for durability and stability

• Protective storage case included to maintain precision over time

• Manufactured in the USA to ensure consistent quality and compliance

Technical Specifications

• Weight value: 10 mg

• OIML class: E1

• Certificate type: NVLAP accredited calibration certificate

• Tolerance: 0.003 mg

• Design: Flat with one end turned up

• Material: 304 stainless steel

• Density at 20 °C: 7.95 g/cm³

• Dimensions: 0.233 × 0.221 × 0.084 in

• Protective case: Included

• Country of origin: USA

• Troemner part number: 7533-E1W

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