OHAUS ASTM Class 1 Calibration Weight Set, 20 kg – 1 mg, NVLAP Accredited (Set of 30)

OHAUS ASTM Class 1 Calibration Weight Set, 20 kg – 1 mg, NVLAP Accredited (Set of 30)

Item 30391385 is a precision ASTM Class 1 calibration weight set covering a range from 20 kg to 1 mg, supplied with an ISO/IEC 17025 NVLAP-accredited certificate. Designed to meet or exceed ASTM Class 1 tolerances, this set is ideal for calibrating high-accuracy balances and scales in regulated environments. The 30-piece set is housed in a protective case for secure storage and transport.

Specifications

• ASTM Class: 1
• Certificate: ISO/IEC 17025 NVLAP-accredited
• Weight Range: 20 kg to 1 mg
• Set Capacity: 40 kg
• Total Pieces: 30
• Construction: 1 g and above are two-piece; 500 mg and below are one-piece
• Density at 20 °C: Below 5 mg – 2.70 g/cm³; 500 mg to 5 mg – 7.95 g/cm³; 2 kg and above – 7.95 g/cm³; 1 kg to 1 g – 8.03 g/cm³
• Weight Material: 500 mg to 5 mg – 304 stainless steel; ≥ 2 kg – 316 stainless steel; below 5 mg – aluminum; 1 kg to 1 g – Troemner Alloy 8
• Case Dimensions (L×H×W): 11.7″ × 19.7″ × 24.6″ (29.72 × 50.04 × 62.48 cm)
• Origin: USA

Set Contents

• 20 kg, 10 kg, 5 kg, (2) 2 kg, 1 kg, 500 g, 200 g (×2), 100 g, 50 g, 20 g (×2), 10 g, 5 g, 2 g (×2), 1 g, 500 mg, 200 mg (×2), 100 mg, 50 mg, 20 mg (×2), 10 mg, 5 mg, 2 mg (×2), 1 mg

Features & Benefits

• Meets or exceeds ASTM Class 1 tolerances for high-precision calibration
• Wide range from 20 kg to 1 mg for versatile calibration needs
• Protective case included for safe handling and storage
• NVLAP-accredited certificate supports ISO/IEC 17025 compliance
• Durable stainless steel and aluminum construction for long service life