Product Description
Audit-ready balance calibration is easier when every weight in the case is a reference-grade standard. These OHAUS ASTM reference calibration weight sets and CalPak kits are made to UltraClass tolerances, tighter than ASTM Class 1, for verifying balances with readability as fine as 0.01 mg. Options cover compact CalPak kits, gram-to-milligram sets and full 50 kg reference sets.
This listing is for OHAUS item number 30390110: UltraClass ASTM Reference Weight Set, 100 g to 1 mg, with Non-Accredited Calibration Certificate. Weights 1 g through 1 kg are Alloy 8 stainless steel, 2 kg and larger pieces are 316 stainless steel, 5 mg to 500 mg pieces are 304 stainless steel and the smallest milligram pieces are aluminum. Weights 1 g and above are two-piece cylindrical with a handling knob; 500 mg and below are one-piece flat weights with a raised end for forceps. Each set is made in the USA and supplied in a protective case, with certificate options up to ISO/IEC 17025 accredited calibration. Add it to your LIGHT LABS order and keep your lab running with genuine OHAUS equipment.
Key Features
- UltraClass Tolerances – Reference-grade sets built to tighter-than-ASTM Class 1 tolerances for calibrating high-precision balances with readability down to 0.01 mg
- Alloy 8 Stainless Steel – Weights from 1 g upward are machined from non-magnetic Alloy 8 stainless steel with a density of about 8.03 g/cm³ for low air-buoyancy error
- Adjustable Two-Piece Design – Weights 1 g and above use a two-piece construction with a handling knob so the mass can be adjusted during recalibration
- Easy-Handling Fractional Weights – Milligram weights are one-piece flat pieces with one end turned up for pickup with forceps
- Fitted Protective Case – Each set ships in a fitted case that keeps every piece in its own cavity to prevent contact damage and contamination
- Certificate Options – Available with no certificate, a non-accredited traceable certificate, or an ISO/IEC 17025 accredited calibration certificate
Specifications
| Item Number | 30390110 |
| Brand | OHAUS |
| Description | UltraClass ASTM Reference Weight Set, 100 g to 1 mg, with Non-Accredited Calibration Certificate |
| Calibration Certificate | Traceable Certificate |
| ASTM Class | UltraClass |
| Weight Set Range | 100 g - 1 mg |
| Set Capacity | 200 g |
| Set Total Pieces | 21 |
| 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) 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;(2) 2 mg;50 mg;1 mg |
| Weight Material | 500 mg to 5 mg are 304 Stainless Steel;≥1 g are Alloy 8;Below 5 mg are Aluminum;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
- 30390130 – UltraClass ASTM Reference Weight Set, 25 kg to 1 g, with Non-Accredited Calibration Certificate
- 30390142 – UltraClass ASTM Reference Weight Set, 50 g to 1 mg, with Accredited Calibration Certificate
- 30390105 – UltraClass ASTM Reference Weight Set, 50 g to 1 mg, with Non-Accredited Calibration Certificate
- 30390171 – UltraClass ASTM Reference Weight Set, 50 kg to 1 g, with Accredited Calibration Certificate
- 30390134 – UltraClass ASTM Reference Weight Set, 50 kg to 1 g, with Non-Accredited Calibration Certificate
- 30390147 – UltraClass ASTM Reference Weight Set, 100 g to 1 mg, with Accredited Calibration Certificate
- 30390152 – UltraClass ASTM Reference Weight Set, 200 g to 1 mg, with Accredited Calibration Certificate
- 30390115 – UltraClass ASTM Reference Weight Set, 200 g to 1 mg, with Non-Accredited Calibration Certificate
- 30390008 – UltraClass ASTM Reference Weight Set, 2 x 200 g to 1 mg, No Certificate
- 30390012 – UltraClass ASTM Reference Weight Set, 2 x 200 g to 1 mg, with Non-Accredited Calibration Certificate
- 30390016 – UltraClass ASTM Reference Weight Set, 2 x 200 g to 1 mg, with Accredited Calibration Certificate
- 30390154 – UltraClass ASTM Reference Weight Set, 500 g to 1 mg, with Accredited Calibration Certificate
- 30390117 – UltraClass ASTM Reference Weight Set, 500 g to 1 mg, with Non-Accredited Calibration Certificate
- 30390156 – UltraClass ASTM Reference Weight Set, 1 kg to 1 mg, with Accredited Calibration Certificate
Applications
- Calibrating analytical and semi-micro balances
- Primary reference for calibrating working mass standards
- Maintaining traceability between national standards and ASTM Class 1 weights
- Metrology and calibration laboratories
- ISO 9001, GLP and GMP balance verification
- Pharmaceutical and research QA/QC programs
