Product Description
Replace a single lost or out-of-tolerance mass standard without buying a whole new set. These OHAUS individual ASTM weights cover values from 1 mg flats to 10 kg grip-handle weights, letting you check a balance at exactly the load points your procedure calls for. Pick the certificate level that matches your quality system, from no certificate for internal checks to a fully accredited report.
This listing is for OHAUS item number 80850285: ASTM Class 4 Calibration Weight, 1 g, Two-Piece, with Accredited Calibration Certificate. Milligram weights are one-piece stainless steel flats designed for tweezer handling, while gram and kilogram weights use two-piece construction in knob-top, straight cylindrical or grip-handle styles. Tolerances follow ASTM E617 for Class 1 or Class 4, and accredited versions ship with an ISO/IEC 17025 certificate listing measured values and uncertainty. A protective case is supplied with most values to keep surfaces clean between uses. LIGHT LABS supplies the OHAUS line with knowledgeable support from our Englewood, Colorado team.
Key Features
- Single-Value Flexibility – buy only the mass you need to fill a gap in a set or target a specific test point
- ASTM Class 1 or Class 4 – precision tolerances for reference work or economical tolerances for routine verification
- Three Certificate Levels – choose no certificate, a traceable non-accredited certificate or an ISO/IEC 17025 accredited certificate
- Multiple Styles – one-piece flats, knob-top cylinders, straight cylinders and grip-handle weights suit different balances and capacities
- Durable Stainless Construction – corrosion-resistant materials hold mass value over long service life
Specifications
| Item Number | 80850285 |
| Brand | OHAUS |
| Description | ASTM Class 4 Calibration Weight, 1 g, Two-Piece, with Accredited Calibration Certificate |
| Calibration Certificate | ISO/IEC 17025 Accredited Certificate |
| ASTM Class | 4 |
| Weight Value | 1 g |
| Design | Cylindrical with handling knob |
| Protective Case | Included |
| Uncertainty | 0.04 mg |
| Construction | Two-piece |
| Density at 20°C | 8.03 g/cm3 |
| Dimensions | 0.42 in x 0.18 in (1.059 cm x 0.467 cm) (HxØ) |
| Dimensions in Case | 2.5 in x 2 in (6.35 cm x 5.08 cm) (HxØ) |
| Weight Material | Alloy 8;Alloy 8 |
| Weight Tolerance | 0.2 mg |
| Wgt Origin (USA) | USA |
| Standard | ASTM E617 |
| ASTM Classes in This Group | Class 1, Class 4 |
| Certificate Options | None, Traceable (Non-Accredited), ISO/IEC 17025 Accredited |
| Origin | USA |
Related Models
- 80781125 – ASTM Class 1 Calibration Weight, 1 g, Two-Piece, No Certificate
- 80781126 – ASTM Class 1 Calibration Weight, 1 g, Two-Piece, with Accredited Calibration Certificate
- 80780061 – ASTM Class 4 Calibration Weight, 1 g, Two-Piece, No Certificate
- 30391088 – ASTM Class 4 Calibration Weight, 1 g, Two-Piece, with Non-Accredited Calibration Certificate
- 30391417 – ASTM Class 1 Calibration Weight, 1 kg, Two-Piece, No Certificate
- 30391450 – ASTM Class 1 Calibration Weight, 1 kg, Two-Piece, with Accredited Calibration Certificate
- 30391599 – ASTM Class 1 Calibration Weight, 1 kg, Two-Piece, with Non-Accredited Calibration Certificate
- 30391287 – ASTM Class 4 Calibration Weight, 1 kg, Two-Piece, No Certificate
- 30391320 – ASTM Class 4 Calibration Weight, 1 kg, Two-Piece, with Accredited Calibration Certificate
- 30391100 – ASTM Class 4 Calibration Weight, 1 kg, Two-Piece, with Non-Accredited Calibration Certificate
- 80781101 – ASTM Class 1 Calibration Weight, 1 mg, One-Piece, No Certificate
- 80781102 – ASTM Class 1 Calibration Weight, 1 mg, One-Piece, with Accredited Calibration Certificate
- 30391575 – ASTM Class 1 Calibration Weight, 1 mg, One-Piece, with Non-Accredited Calibration Certificate
- 80780058 – ASTM Class 4 Calibration Weight, 1 mg, One-Piece, No Certificate
Applications
- Daily and weekly balance performance checks
- Replacing lost or damaged weights in existing sets
- Calibration at specific SOP test loads
- Minimum weight and repeatability testing
- Quality control and metrology laboratories
