WEIGHT SETS CLASS E 1 Ohaus (30390919)

WEIGHT SETS CLASS E 1 Ohaus (30390919)

The WEIGHT SETS CLASS E 1  (30390919) is a high-precision calibration weight set designed for ultra-accurate mass calibration and verification of analytical balances and mass comparators. Manufactured in compliance with OIML Class E1 standards and supplied with an ISO/IEC 17025 accredited calibration certificate, this set ensures excellent traceability, stability, and confidence for critical metrology and laboratory applications.

This E1 weight set covers a mass range from 1 g up to 200 g with a total capacity of 400 g, making it ideal for high-accuracy analytical balance calibration and reference checks. Each weight is produced with one-piece construction to provide superior mechanical stability and long-term dimensional consistency. Made from Troemner Alloy 8, the weights offer uniform density, corrosion resistance, and reliable performance over extended use. All components are securely arranged in a 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

• Optimized mass range for analytical balance and comparator calibration

• One-piece construction for enhanced stability and reduced uncertainty

• Troemner Alloy 8 material for consistent density and long service life

• Protective storage case included for safe handling and storage

• Manufactured in the USA for assured quality and traceability

Technical Specifications

• OIML class: E1

• Weight set range: 1 g to 200 g

• Total set capacity: 400 g

• Total pieces: 10

• Construction: One-piece

• Density at 20 °C: 8.03 g/cm³

• Weight material: Troemner Alloy 8

• Set contents:

  • 1 g

  • 2 g (2 pieces)

  • 5 g

  • 10 g

  • 20 g (2 pieces)

  • 50 g

  • 100 g

  • 200 g

• Case dimensions (L × H × W): 3.5 × 7 × 8 in (8.89 × 17.78 × 20.32 cm)

• Protective case: Included

• Country of origin: USA

Applications

• Calibration and verification of analytical balances

• Reference mass standards for mass comparators

• Metrology and accredited calibration laboratories

• Pharmaceutical, chemical, and academic research

• Quality control and regulatory compliance testing