INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390928)

INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390928)

The INDIVIDUAL WEIGHT CLASS E 1 Ohaus (30390928) is a high-precision calibration weight engineered for ultra-accurate mass calibration and verification of analytical, comparator, and high-resolution balances. Manufactured to comply with OIML Class E1 requirements, this weight delivers exceptional accuracy, stability, and traceability for critical metrology and laboratory applications.

This Class E1 calibration weight features a robust one-piece cylindrical design that ensures excellent mechanical stability and long-term dimensional consistency. Constructed from high-quality 316 stainless steel, it offers superior corrosion resistance and reliable performance in controlled laboratory environments. A dedicated protective case is included to safeguard the weight from contamination and mechanical damage during storage and transport, preserving calibration integrity over time.

Key Features

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

• One-piece cylindrical construction for maximum stability and durability

• 316 stainless steel material for excellent corrosion resistance and longevity

• Low uncertainty and tight tolerance suitable for reference and primary calibration

• Protective storage case included for safe handling and preservation of accuracy

• Designed for professional laboratory and metrology use

• Manufactured in the USA to ensure quality and full traceability

Technical Specifications

• Weight value: 20 kg

• OIML class: E1

• Uncertainty: 2.5 mg

• Weight tolerance: 10 mg

• Construction: One-piece

• Design: Cylindrical

• Material: 316 stainless steel

• Density at 20 °C: 7.95 g/cm³

• Dimensions (H × Ø): 8.27 × 5.22 in (20.996 × 13.272 cm)

• Dimensions in case (L × H × W): 9 × 8 × 8 in (22.86 × 20.32 × 20.32 cm)

• Protective case: Included

• Country of origin: USA

Applications

• Calibration and verification of analytical, comparator, and high-resolution balances

• Reference mass standards in metrology and calibration laboratories

• Pharmaceutical, chemical, and academic laboratories requiring extreme accuracy

• Quality control and regulatory compliance testing