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 30391195: ASTM Class 4 Calibration Weight Set, 500 mg to 10 mg, No 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 | 30391195 |
| Brand | OHAUS |
| Description | ASTM Class 4 Calibration Weight Set, 500 mg to 10 mg, No Certificate, |
| Calibration Certificate | No Certificate |
| ASTM Class | 4 |
| Weight Set Range | 500 mg - 10 mg |
| Set Capacity | 1 g |
| Set Total Pieces | 8 |
| Protective Case | Included |
| Construction | One-piece |
| Density at 20°C | Below 5 mg are 2.70 g/cm3;500 mg to 5 mg are 7.95 g/cm3 |
| Dimensions in Case | 4.5 in x 3.5 in (11.43 cm x 8.89 cm) (HxØ) |
| Set Contents | 100 mg;10 mg;(2) 200 mg;(2) 20 mg;50 mg;500 mg |
| Weight Material | Weights 5 mg through 500 mg are 304 Stainless Steel. Weights below 5 mg are 3003-H14 Aluminum |
| 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,
- 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,
- 30390050 – ASTM Class 4 Calibration Weight Set, (2) 200 g to 1 g, with 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
