- All Denver Instrument weights meet or exceed ASTM specifications
- All mass measurements are made using procedures developed by NIST
- All mass standards are milled from the finest bar steel stock ensuring consistent density
- Each weight is calibrated in a climate-controlled environment
- One-piece construction provides the maximum mass stability
- ach weight and weight set is supplied complete with a Certificate of Traceability
- Certificate of Calibration is available at a nominal cost
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| Cylinder | Flat mg Weights |
Small Knob Weights |
|
| 1g | 150g | 1mg | 1g |
| 2g | 160g | 2mg | 2g |
| 5g | 200g | 5mg | 5g |
| 10g | 300g | 10mg | 10g |
| 20g | 400g | 20mg | 20g |
| 30g | 500g | 50mg | 50g |
| 40g | 1Kg | 100mg | 100g |
| 50g | 2Kg | 200mg | |
| 100g | 5Kg | 500mg | |
| Set | Weights Included | |
| 1mg - 100g | 21 Piece Set | 1mg, 2 x 2mg, 5mg, 10mg, 2 x 20mg, 50mg, 100mg, 2 x 200mg, 500mg, 1g, 2 x 2g, 5g, 10g, 2 x 20g, 50g, 100g |
| 10mg-50g | 16 Piece Set | 10mg, 2 x 20mg, 50mg, 100mg, 2 x 200mg, 500mg, 1g, 2 x 2g, 5g, 10g, 2 x 20g, 50g |
| 10mg-100g | 17 Piece Set | 10mg, 2 x 20mg, 50mg, 100mg, 2 x 200mg, 500mg, 1g, 2 x 2g, 5g, 10g, 2 x 20g, 50g, 100g |
| 1g-50g | 8 Piece Set | 1g, 2 x 2g, 5g, 10g, 2 x 20g, 50g 1g-100g 9 Piece Set 1g, 2 x 2g, 5g, 10g, 2 x 20g, 50g, 100g |
| 100g-1kg | 5 Piece Set | 100g, 2 x200g, 500g, 1000g |
Which Class is Right for My Application?
A balance should be calibrated using a weight with a class tolerance factor greater than the readability of the balance. Example: A toploading balance with readability of 0.01g may be calibrated with a weight having a known tolerance of at least 0.009g.
OIML E2 and Ulti-Mass Standards. These mass standards provide the greatest precision available from Denver Instrument Company. They are ideal for use as reference standards to calibrate other weights or for calibrating high-resolution analytical balances. Ulti-Mass weights are identical to E2 weights except for the nominal value markings. E2 weights have no markings on the weights, many customers prefer the weights be marked with the nominal value. The OIML E2 tolerance is approximately two times the precision of ANSI/ASTM Class 1.
ANSI/ASTM Class 1. Provides high precision. Can be used as reference standards in calibrating other weights and are appropriate for calibration of high-precision analytical balances.
ANSI/ASTM Class 2. Appropriate for calibrating high-precision toploading balances with readabilities ranging from 0.001g to 0.01g.
ANSI/ASTM Classes 3 and 4. Appropriate for calibrating balances with moderate precision, ranging from 0.01g to 0.1g.
Report of Traceability
Each Denver Instrument weight or weight set is supplied with a report of traceability at no additional cost. This report identifies the tolerance class, type of construction and lists the NIST test number and date for the applicable Denver Instrument primary standard(s), the secondary set number and the technician’s signature.
Certificate of Calibration
For a nominal fee, add a Certificate of Calibration to any Denver Instrument weight or weight set by adding a "C" to the end of the part number. The Certificate of Calibration report includes the nominal value and the conventional mass correction value for each weight certified. It will also list information on the standards the weights were compared against including: identifying number, NIST test number and date the standards were last calibrated. It also contains our NVLAP laboratory code.