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2 lb through 50 lb Calibration Weight Set, ASTM Class 4
As of: Wednesday, July 8, 2026
Standard Features
- Stainless steel polished finish
- Designed to meet ASTM E617-23 specifications
- ASTM Class 0 weight sets and individual weights are not individually marked with their weight value or individually serialized per ASTM E617-23
- Nominal value marked on weights
- Serial numbers applied to case (weights may be marked with symbol)
- Density 7.95g/cm3
Applications:
- Calibrating Class I and II balances
- ASTM Class 4, 5 and 6 weights
- Student laboratory use
- Rough weighing operations
- Tolerance testing
- Verification checks
Custom Configuration:
- Custom sets are available as build to order to meet your specific requirements
- ASTM weight sets larger than 500 g or 1 lb include a hardwood case with velvet-lined pockets
- Weight sets with the largest weight of 500 g include a precision-machined, polyvinyl crush-resistant case
Weight Set Contents
| 50 lb - 1/32 oz | 50 lb - 0.001 lb | 20 lb - 1/32 oz | 20 lb - 0.001 lb | 10 lb - 1/32 oz | 10 lb - 0.001 lb | 5 lb - 1/32 oz | 5 lb - 0.001 lb | 2 lb - 1/32 oz | 2 lb - 0.001 lb |
|---|---|---|---|---|---|---|---|---|---|
| 12387 Class 4 | 119046 Class 4 | 12385 Class 4 | 119050 Class 4 | 12383 Class 4 | 119054 Class 4 | 12381 Class 4 | 119058 Class 4 | 12379 Class 4 | 119062 Class 4 |
| (1) 50 lb | (1) 50 lb | – | – | – | – | – | – | – | – |
| (1) 30 lb | (1) 30 lb | – | – | – | – | – | – | – | – |
| (1) 20 lb | (1) 20 lb | (1) 20 lb | (1) 20 lb | – | – | – | – | – | – |
| (1) 10 lb | (1) 10 lb | (1) 10 lb | (1) 10 lb | (1) 10 lb | (1) 10 lb | – | – | – | – |
| (1) 5 lb | (1) 5 lb | (1) 5 lb | (1) 5 lb | (1) 5 lb | (1) 5 lb | (1) 5 lb | (1) 5 lb | – | – |
| (1) 3 lb | (1) 3 lb | (1) 3 lb | (1) 3 lb | (1) 3 lb | (1) 3 lb | (1) 3 lb | (1) 3 lb | – | – |
| (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb | (1) 2 lb |
| (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb | (1) 1 lb |
| (1) 8 oz | (1) 0.5 lb | (1) 8 oz | (1) 0.5 lb | (1) 8 oz | (1) 0.5 lb | (1) 8 oz | (1) 0.5 lb | (1) 8 oz | (1) 0.5 lb |
| (1) 4 oz | (1) 0.3 lb | (1) 4 oz | (1) 0.3 lb | (1) 4 oz | (1) 0.3 lb | (1) 4 oz | (1) 0.3 lb | (1) 4 oz | (1) 0.3 lb |
| (1) 2 oz | (1) 0.2 lb | (1) 2 oz | (1) 0.2 lb | (1) 2 oz | (1) 0.2 lb | (1) 2 oz | (1) 0.2 lb | (1) 2 oz | (1) 0.2 lb |
| (1) 1 oz | (1) 0.1 lb | (1) 1 oz | (1) 0.1 lb | (1) 1 oz | (1) 0.1 lb | (1) 1 oz | (1) 0.1 lb | (1) 1 oz | (1) 0.1 lb |
| (1) 1/2 oz | (1) 0.05 lb | (1) 1/2 oz | (1) 0.05 lb | (1) 1/2 oz | (1) 0.05 lb | (1) 1/2 oz | (1) 0.05 lb | (1) 1/2 oz | (1) 0.05 lb |
| (1) 1/4 oz | (1) 0.03 lb | (1) 1/4 oz | (1) 0.03 lb | (1) 1/4 oz | (1) 0.03 lb | (1) 1/4 oz | (1) 0.03 lb | (1) 1/4 oz | (1) 0.03 lb |
| (1) 1/8 oz | (1) 0.02 lb | (1) 1/8 oz | (1) 0.02 lb | (1) 1/8 oz | (1) 0.02 lb | (1) 1/8 oz | (1) 0.02 lb | (1) 1/8 oz | (1) 0.02 lb |
| (1) 1/16 oz | (1) 0.01 lb | (1) 1/16 oz | (1) 0.01 lb | (1) 1/16 oz | (1) 0.01 lb | (1) 1/16 oz | (1) 0.01 lb | (1) 1/16 oz | (1) 0.01 lb |
| (2) 1/32 oz | (1) 0.005 lb | (2) 1/32 oz | (1) 0.005 lb | (2) 1/32 oz | (1) 0.005 lb | (2) 1/32 oz | (1) 0.005 lb | (2) 1/32 oz | (1) 0.005 lb |
| – | (1) 0.003 lb | – | (1) 0.003 lb | – | (1) 0.003 lb | – | (1) 0.003 lb | – | (1) 0.003 lb |
| – | (1) 0.002 lb | – | (1) 0.002 lb | – | (1) 0.002 lb | – | (1) 0.002 lb | – | (1) 0.002 lb |
| – | (1) 0.001 lb | – | (1) 0.001 lb | – | (1) 0.001 lb | – | (1) 0.001 lb | – | (1) 0.001 lb |
| 18 pcs. | 20 pcs. | 16 pcs. | 18 pcs. | 15 pcs. | 17 pcs. | 14 pcs. | 16 pcs. | 12 pcs. | 14 pcs. |
| 122 lb set wt. | 122 lb set wt. | 42 lb set wt. | 42 lb set wt. | 22 lb set wt. | 22 lb set wt. | 12 lb set wt. | 12 lb set wt. | 4 lb set wt. | 4 lb set wt |
| Part # | Description | List Price |
|---|---|---|
| 12387 | ASTM Class 4 SST Polished | Consult |
| 119046 | ASTM Class 4, SST, Polished Density 7.95 | Consult |
| 12385 | ASTM Class 4 SST Polished | Consult |
| 119050 | ASTM Class 4, SST, Polished Density 7.95 | Consult |
| 12383 | ASTM Class 4 SST Polished | Consult |
| 119054 | ASTM Class 4, SST, Polished Density 7.95 | Consult |
| 12381 | ASTM Class 4 SST Polished | Consult |
| 119058 | ASTM Class 4, SST, Polished Density 7.95 | Consult |
| 12379 | ASTM Class 4 SST Polished | Consult |
| 119062 | ASTM Class 4, SST, Polished Density 7.95 | Consult |
Accessories
| Part # | Description | List Price |
|---|---|---|
| 36092 | Accuracy | List Price: $60.00 |
| 11714 | List Price: $8.00 | |
| 11711 | Delrin | List Price: $6.00 |
| 152414 | 130 mm, Tips made of nylon. | List Price: $50.00 |
| 25836 | List Price: $25.00 | |
| 11755 | List Price: $50.00 | |
| 50035 | Plastic, 200g to 500g | List Price: $50.00 |
| 11747 | Handle Plexiglass, 200 g to 3 kg | List Price: $24.00 |
| 11712 | SST, 5 kg and larger nominal value | List Price: $85.00 |
| 50000 | Surgical Tubing On Ends | List Price: $86.00 |
| 50037 | OIML Acrylic | List Price: $63.00 |
Replacement Cases
| Part # | Description | List Price |
|---|---|---|
| 11589 | Precision Laboratory SST Weight Set | List Price: $2,464.00 |
| 11590 | Precision Laboratory SST Weight Set | List Price: $2,640.00 |
| 11591 | Precision Laboratory SST Weight Set | List Price: $2,112.00 |
| 11592 | Precision Laboratory SST Weight Set | List Price: $1,639.00 |
| 11593 | Precision Laboratory SST Weight Set | List Price: $2,134.00 |
Secondary Case
| Part # | Description | List Price |
|---|---|---|
| 11610 | Precision Laboratory SST Weight Set | List Price: $363.00 |
| 118813 | Precision Laboratory SST Weight Set | List Price: $341.00 |
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