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20 g Range, Calibration Weight Set, ASTM Class 3
As of: Tuesday, July 28, 2026
Standard Features
- Stainless steel polished finish
- Designed to meet ASTM E617-23 specifications
- 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
20 g ASTM Weight Set Contents
| 5-2-2-1 | 5-2-2-1 | 5-2-2-1 | 5-2-2-1 | 5-2-2-1 | |||||
| 20 g - 1 mg | 20 g - 1 mg | 20 g - 5 mg | 20 g - 5 mg | 20 g - 10 mg | 20 g - 10 mg | 20 g - 100 mg | 20 g - 100 mg | 20 g - 1 g | 20 g - 1 g |
|---|---|---|---|---|---|---|---|---|---|
| 11961 Class 3 | 12311 Class 3 | 11966 Class 3 | 12309 Class 3 | 11971 Class 3 | 22188 Class 3 | 84143 Class 3 | 22187 Class 3 | 11976 Class 3 | 22186 Class 3 |
| (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g | (1) 20 g |
| (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g | (1) 10 g |
| (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g | (1) 5 g |
| (1) 3 g | – | (1) 3 g | – | (1) 3 g | – | (1) 3 g | – | (1) 3 g | – |
| (1) 2 g | (2) 2 g | (1) 2 g | (2) 2 g | (1) 2 g | (2) 2 g | (1) 2 g | (2) 2 g | (1) 2 g | (2) 2 g |
| (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g | (1) 1 g |
| (1) 500 mg | (1) 500 mg | (1) 500 mg | (1) 500 mg | (1) 500 mg | (1) 500 mg | (1) 500 mg | (1) 500 mg | – | – |
| (1) 300 mg | – | (1) 300 mg | – | (1) 300 mg | – | (1) 300 mg | – | – | – |
| (1) 200 mg | (2) 200 mg | (1) 200 mg | (2) 200 mg | (1) 200 mg | (2) 200 mg | (1) 200 mg | (2) 200 mg | – | – |
| (1) 100 mg | (1) 100 mg | (1) 100 mg | (1) 100 mg | (1) 100 mg | (1) 100 mg | (1) 100 mg | (1) 100 mg | – | – |
| (1) 50 mg | (1) 50 mg | (1) 50 mg | (1) 50 mg | (1) 50 mg | (1) 50 mg | – | – | – | – |
| (1) 30 mg | – | (1) 30 mg | – | (1) 30 mg | – | – | – | – | – |
| (1) 20 mg | (2) 20 mg | (1) 20 mg | (2) 20 mg | (1) 20 mg | (2) 20 mg | – | – | – | – |
| (1) 10 mg | (1) 10 mg | (1) 10 mg | (1) 10 mg | (1) 10 mg | (1) 10 mg | – | – | – | – |
| (1) 5 mg | (1) 5 mg | (1) 5 mg | (1) 5 mg | – | – | – | – | – | – |
| (1) 3 mg | – | – | – | – | – | – | – | – | – |
| (1) 2 mg | (2) 2 mg | – | – | – | – | – | – | – | – |
| (1) 1 mg | (1) 1 mg | – | – | – | – | – | – | – | – |
| 18 pcs. | 18 pcs. | 15 pcs. | 15 pcs. | 14 pcs. | 14 pcs. | 10 pcs. | 10 pcs. | 6 pcs. | 6 pcs. |
| 42.221 g set wt. | 42.221 g set wt. | 42.215 g set wt. | 42.215 g set wt. | 42.421 g set wt. | 41.1 g set wt. | 41 g set wt. | 41 g set wt. | 41 g set wt. | 40 g set wt. |
| Part # | Description | List Price |
|---|---|---|
| 11961 | Class 3 SST Polished (5321) | List Price: $996.00 |
| 12311 | Class 3 SST Polished (5221) | List Price: $996.00 |
| 11966 | Class 3 SST Polished (5321) | List Price: $897.00 |
| 12309 | Class 3 SST Polished (5221) | List Price: $897.00 |
| 11971 | Class 3 SST Polished (5321) | List Price: $809.00 |
| 22188 | Class 3 SST Polished (5221) | List Price: $809.00 |
| 84143 | Class 3 SST Polished (5321) | List Price: $726.00 |
| 22187 | Class 3 SST Polished (5221) | List Price: $726.00 |
| 11976 | Class 3 SST Polished (5321) | List Price: $572.00 |
| 22186 | Class 3 SST Polished (5221) | List Price: $572.00 |
Replacement Cases
| Part # | Description | List Price |
|---|---|---|
| 11596 | Precision Laboratory SST Weight Set (5321) | List Price: $210.00 |
| 11588 | Precision Laboratory SST Weight Set | List Price: $210.00 |
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 |
www.ricelake.com | 800-472-6703
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