Product Description
Stock the teaching lab with dependable reference masses without stretching the budget. These ASTM Class 7 economy weights run from 1 mg flat weights to 2,000 g cylinders, and each value is offered with no certificate or with a non-accredited calibration certificate. A cased 200 g to 1 g set rounds out the group for buyers who want several values at once.
This listing is for OHAUS item number 30391007: ASTM Class 7 ECON Weight, 5 g, One-Piece Cylindrical, No Certificate. Gram weights of 1 g and up are cylindrical; 1 g through 100 g pieces are one-piece, and the 200 g through 2,000 g sizes use two-piece construction. Milligram weights are flat with one end turned up so they are easy to lift with tweezers. Steel is used for the larger values and lightweight aluminum for the small ones, and the weights are made in the USA. Add it to your LIGHT LABS order and keep your lab running with genuine OHAUS equipment.
Key Features
- ASTM Class 7 Tolerance – Adjusted to a recognized ASTM class suited to educational, force and general-purpose weighing
- Economical Construction – Practical one-piece and two-piece designs keep cost low for classrooms and shared benches
- Easy-Handling Shapes – Gram weights are cylindrical, while 500 mg and smaller pieces are flat with one end turned up for tweezers
- Certificate Choice – Order with no certificate or with a non-accredited calibration certificate for traceable records
- Made in the USA – Weights are produced in the United States
Specifications
| Item Number | 30391007 |
| Brand | OHAUS |
| Description | ASTM Class 7 ECON Weight, 5 g, One-Piece Cylindrical, No Certificate |
| Calibration Certificate | No Certificate |
| ASTM Class | 7 |
| Weight Value | 5 g |
| Protective Case | Not Included |
| Construction | One-piece |
| Density at 20°C | 2.70 g/cm3 |
| Design | Cylindrical |
| Dimensions | 0.51 in x 0.34 in (1.29 cm x 0.853 cm) (HxØ) |
| Weight Tolerance | 13 mg |
| Wgt Origin (USA) | USA |
| Weight Range | 1 mg to 2,000 g |
| Origin | USA |
Related Models
- 30391009 – ASTM Class 7 ECON Weight, 1 g, One-Piece Cylindrical, No Certificate
- 30391029 – ASTM Class 7 ECON Weight, 1 g, One-Piece Cylindrical, with Non-Accredited Calibration Certificate
- 30391018 – ASTM Class 7 ECON Weight, 1 mg, One-Piece Flat, No Certificate
- 30391038 – ASTM Class 7 ECON Weight, 1 mg, One-Piece Flat, with Non-Accredited Calibration Certificate
- 30391006 – ASTM Class 7 ECON Weight, 10 g, One-Piece Cylindrical, No Certificate
- 30391026 – ASTM Class 7 ECON Weight, 10 g, One-Piece Cylindrical, with Non-Accredited Calibration Certificate
- 30391015 – ASTM Class 7 ECON Weight, 10 mg, One-Piece Flat, No Certificate
- 30391035 – ASTM Class 7 ECON Weight, 10 mg, One-Piece Flat, with Non-Accredited Calibration Certificate
- 30391003 – ASTM Class 7 ECON Weight, 100 g, One-Piece Cylindrical, No Certificate
- 30391023 – ASTM Class 7 ECON Weight, 100 g, One-Piece Cylindrical, with Non-Accredited Calibration Certificate
- 30391012 – ASTM Class 7 ECON Weight, 100 mg, One-Piece Flat, No Certificate
- 30391032 – ASTM Class 7 ECON Weight, 100 mg, One-Piece Flat, with Non-Accredited Calibration Certificate
- 30391000 – ASTM Class 7 ECON Weight, 1,000 g, Two-Piece Cylindrical, No Certificate
- 30391020 – ASTM Class 7 ECON Weight, 1,000 g, Two-Piece Cylindrical, with Non-Accredited Calibration Certificate
Applications
- Classroom and teaching lab weighing
- Physics force measurement experiments
- Routine balance and scale checks
- Student balance verification
- General-purpose laboratory weighing
- Spot-checking top-loading balances
