Product Description
Reliable weighing results depend on reliable reference masses, and these OHAUS ASTM sets give you the full sequence you need in a single case. Options range from small milligram sets for micro and analytical balances to gram and kilogram sets, in ASTM Class 1 for high-precision work or Class 4 for routine verification.
This listing is for OHAUS item number 30391364: ASTM Class 1 Calibration Weight Set, 20 g to 10 mg, with Accredited Calibration Certificate,. Weights are made in the USA and adjusted to ASTM E617 tolerances. Gram and kilogram pieces are machined from dense, corrosion-resistant stainless alloys, and most use two-piece construction with a sealed adjustment cavity, while milligram pieces are one-piece. Every set ships in a fitted protective case (the largest 25 kg and 50 kg pieces, where included, ship separately), and sets are offered with no certificate, a traceable non-accredited certificate or an ISO/IEC 17025 accredited certificate. LIGHT LABS ships genuine OHAUS products and can help you match accessories and parts to your instrument.
Key Features
- Class 1 or Class 4 – Match the weight tolerance to your balance readability and procedures
- Milligram Sets Available – Small sets down to 1 mg for analytical and semi-micro balances
- Accredited Certification Option – ISO/IEC 17025 accredited certificates for audit-ready documentation
- Made in the USA – Corrosion-resistant metal construction for long-term mass stability
- Protective Case – Fitted storage keeps weights clean and organized
Specifications
| Item Number | 30391364 |
| Brand | OHAUS |
| Description | ASTM Class 1 Calibration Weight Set, 20 g to 10 mg, with Accredited Calibration Certificate, |
| Calibration Certificate | ISO/IEC 17025 Accredited Certificate |
| ASTM Class | 1 |
| Weight Set Range | 20 g - 10 mg |
| Set Capacity | 40 g |
| Set Total Pieces | 14 |
| Protective Case | Included |
| Construction | 1 g and above are two-piece; 500 mg and below are one-piece |
| Density at 20°C | Below 1 g are 7.95 g/cm3;1 g and above are 8.03 g/cm3 |
| Dimensions in Case | 3.5 in x 7 in x 8 in (8.89 cm x 17.78 cm x 20.32 cm) (LxHxW) |
| Set Contents | 10 g;100 mg;20 g;10 mg;(2) 2 g;(2) 200 mg;(2) 20 mg;1 g;5 g;50 mg;500 mg |
| Weight Material | Below 1 g are 304 Stainless Steel;≥1 g are Alloy 8 |
| Wgt Origin (USA) | USA |
Related Models
- 30391329 – ASTM Class 1 Calibration Weight Set, 500 mg to 10 mg, No Certificate,
- 30391539 – ASTM Class 1 Calibration Weight Set, 500 mg to 10 mg, with Non-Accredited Calibration Certificate,
- 30391195 – ASTM Class 4 Calibration Weight Set, 500 mg to 10 mg, No Certificate,
- 30391040 – ASTM Class 4 Calibration Weight Set, 500 mg to 10 mg, with Non-Accredited Calibration Certificate,
- 80781029 – ASTM Class 1 Calibration Weight Set, 100 g to 1 g, No Certificate,
- 80781030 – ASTM Class 1 Calibration Weight Set, 100 g to 1 g, with Accredited Calibration Certificate,
- 30391554 – ASTM Class 1 Calibration Weight Set, 100 g to 1 g, with Non-Accredited Calibration Certificate,
- 30391208 – ASTM Class 4 Calibration Weight Set, 100 g to 1 g, No Certificate,
- 30391242 – ASTM Class 4 Calibration Weight Set, 100 g to 1 g, with Accredited Calibration Certificate,
- 30391055 – ASTM Class 4 Calibration Weight Set, 100 g to 1 g, with Non-Accredited Calibration Certificate,
- 30391365 – ASTM Class 1 Calibration Weight Set, 20 g to 100 mg, with Accredited Calibration Certificate,
- 30391233 – ASTM Class 4 Calibration Weight Set, 20 g to 100 mg, with Accredited Calibration Certificate,
- 80781034 – ASTM Class 1 Calibration Weight Set, (2) 200 g to 1 g, with Accredited Calibration Certificate,
- 30390058 – ASTM Class 1 Calibration Weight Set, (2) 200 g to 1 g, with Non-Accredited Calibration Certificate,
Applications
- Analytical balance calibration
- Moisture analyzer and precision balance checks
- GLP, GMP and ISO 17025 lab documentation
- Mass comparison and reference standards
- Instrument service and calibration labs
