Product Description
When a balance reading has to stand up to an auditor, a properly classed weight set is the fastest way to prove it. These OHAUS ASTM sets cover 1 mg through 50 kg in a range of configurations, with Class 1 sets suited to analytical work and Class 4 sets suited to everyday precision and industrial weighing.
This listing is for OHAUS item number 30391211: ASTM Class 4 Calibration Weight Set, 500 g to 1 mg, No Certificate,. The weights are produced 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 supplies the OHAUS line with knowledgeable support from our Englewood, Colorado team.
Key Features
- ASTM E617 Compliance – Class 1 and Class 4 tolerances for documented accuracy
- Milligram to Kilogram Sets – Configurations from 1 mg up to 50 kg, including doubled 200 g and 2 kg sets
- Documented Traceability – Certificate options include traceable and ISO/IEC 17025 accredited calibration
- Durable Construction – Corrosion-resistant metals with sealed adjustment cavities on most larger pieces
- Protective Case Included – Keeps every piece in its own fitted location
Specifications
| Item Number | 30391211 |
| Brand | OHAUS |
| Description | ASTM Class 4 Calibration Weight Set, 500 g to 1 mg, No Certificate, |
| Calibration Certificate | No Certificate |
| ASTM Class | 4 |
| Weight Set Range | 500 g - 1 mg |
| Set Capacity | 1 kg |
| Set Total Pieces | 24 |
| Protective Case | Included |
| Construction | 1 g and above are two-piece; 500 mg and below are one-piece |
| Density at 20°C | Below 5 mg are 2.70 g/cm3;500 mg to 5 mg 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 | (2) 2 g;(2) 200 g;(2) 20 mg;500 mg;10 g;(2) 20 g;100 g;100 mg;10 mg;(2) 200 mg;1 g;50 g;5 g;5 mg;500 g;(2) 2 mg;50 mg;1 mg |
| Weight Material | Weights 1 g and above are Alloy 8. Weights 5 mg through 500 mg are 304 Stainless Steel. Weights below 5 mg are 3003-H14 Aluminum |
| Wgt Origin (USA) | USA |
Related Models
- 30391574 – ASTM Class 1 Calibration Weight Set, 50 kg to 1 g, with Non-Accredited Calibration Certificate,
- 30391228 – ASTM Class 4 Calibration Weight Set, 50 kg to 1 g, No Certificate,
- 30391262 – ASTM Class 4 Calibration Weight Set, 50 kg to 1 g, with Accredited Calibration Certificate,
- 30391075 – ASTM Class 4 Calibration Weight Set, 50 kg to 1 g, with Non-Accredited Calibration Certificate,
- 80781027 – ASTM Class 1 Calibration Weight Set, 100 g to 1 mg, No Certificate,
- 30391550 – ASTM Class 1 Calibration Weight Set, 100 g to 1 mg, with Non-Accredited Calibration Certificate,
- 80780101 – ASTM Class 4 Calibration Weight Set, 100 g to 1 mg, No Certificate,
- 30391051 – ASTM Class 4 Calibration Weight Set, 100 g to 1 mg, with Non-Accredited Calibration Certificate,
- 30391341 – ASTM Class 1 Calibration Weight Set, 200 g to 1 mg, No Certificate,
- 30391555 – ASTM Class 1 Calibration Weight Set, 200 g to 1 mg, with Non-Accredited Calibration Certificate,
- 30391209 – ASTM Class 4 Calibration Weight Set, 200 g to 1 mg, No Certificate,
- 30391056 – ASTM Class 4 Calibration Weight Set, 200 g to 1 mg, with Non-Accredited Calibration Certificate,
- 80781031 – ASTM Class 1 Calibration Weight Set, (2) 200 g to 1 mg, No Certificate,
- 30390045 – ASTM Class 4 Calibration Weight Set, (2) 200 g to 1 mg, No Certificate,
Applications
- Balance calibration and daily checks
- Linearity testing across the weighing range
- Quality system and regulatory audits
- Reference standards for working weights
- Education and training labs
