WEIGHT SETS CLASS E 1 Ohaus (30390904)

WEIGHT SETS CLASS E 1 Ohaus (30390904)

The WEIGHT SETS CLASS E 1 Ohaus (30390904) is a high-capacity, ultra-precision calibration weight set developed for accurate mass calibration and verification of analytical balances, precision balances, and mass comparators. Manufactured in compliance with OIML Class E1 requirements and supplied with an ISO/IEC 17025 accredited calibration certificate, this set ensures excellent traceability, stability, and long-term reliability for regulated laboratory and metrology environments.

This E1 weight set covers a practical mass range from 1 g up to 50 kg, with a total set capacity of 100 kg, making it suitable for higher-capacity calibration tasks while maintaining strict accuracy standards. Each weight is produced using one-piece construction to minimize uncertainty and provide superior mechanical stability. Material selection is optimized by weight value, utilizing Troemner Alloy 8 for weights from 1 g to 20 kg and 316 stainless steel for the 50 kg weight, ensuring consistent density, corrosion resistance, and dependable calibration performance. All components are securely stored in a heavy-duty protective case for safe handling, storage, and transport.

Key Features

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

• Supplied with ISO/IEC 17025 accredited calibration certificate

• Wide mass range for precision and high-capacity balance calibration

• One-piece construction for reduced uncertainty and long-term stability

• Optimized material selection for durability and consistent density

• Heavy-duty protective storage case included

• Manufactured in the USA for assured quality and traceability

Technical Specifications

• OIML class: E1

• Calibration certificate: ISO/IEC 17025 accredited

• Weight set range: 1 g to 50 kg

• Total set capacity: 100 kg

• Total pieces: 20

• Construction: One-piece

• Density at 20 °C:

  • 1 g to 20 kg: 8.03 g/cm³

  • 50 kg: 7.95 g/cm³

• Weight material:

  • 1 g to 20 kg: Troemner Alloy 8

  • 50 kg: 316 stainless steel

• Set contents:

  • 1 g

  • 2 g (2 pieces)

  • 5 g

  • 10 g

  • 20 g (2 pieces)

  • 50 g

  • 100 g

  • 200 g (2 pieces)

  • 500 g

  • 1 kg

  • 2 kg (2 pieces)

  • 5 kg

  • 10 kg

  • 20 kg (2 pieces)

  • 50 kg

• Case dimensions (L × H × W): 11.7 × 19.7 × 24.6 in (29.718 × 50.038 × 62.484 cm)

• Protective case: Included

• Country of origin: USA

Applications

• Calibration and verification of analytical, precision, and high-capacity balances

• Reference mass standards for mass comparators

• Metrology and accredited calibration laboratories

• Pharmaceutical, chemical, and industrial quality control

• Regulatory compliance and validation testing