20 g Range, Calibration Weight Set, ASTM Class 1

As of: Friday, July 11, 2025
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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
12448 Class 1 11908 Class 1 12450 Class 1 11907 Class 1 12451 Class 1 11906 Class 1 84145 Class 1 11905 Class 1 12452 Class 1 11904 Class 1
(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.

Parts

Part # Description
12448 Weight Set,20g-1mg ASTM Class 1 SST Polished (5321)
11908 Weight Set,20g-1mg ASTM Class 1 SST Polished (5221)
12450 Weight Set,20g-5mg ASTM Class 1 SST Polished (5321)
11907 Weight Set,20g-5mg ASTM Class 1 SST Polished (5221)
12451 Weight Set,20g-10mg ASTM Class 1 SST Polished (5321)
11906 Weight Set,20g-10mg ASTM Class 1 SST Polished (5221)
84145 Weight Set,20g-100mg ASTM Class 1 SST Polished (5321)
11905 Weight Set,20g-100mg ASTM Class 1 SST Polished (5221)
12452 Weight Set,20g-1g ASTM Class 1 SST Polished (5321)
11904 Weight Set,20g-1g ASTM Class 1 SST Polished (5221)

Options

Part # Description
Replacement Cases
11596 Case, PVC 100g-1mg Precision Laboratory SST Weight Set (5321)
11588 Case,PVC 100g-1mg Precision Laboratory SST Weight Set
Accessories
36092 Form,Statement of Accuracy
11714 Weight Glove,Cloth White
11711 Weight,Tweezers 3.54x.46 Delrin
152414 Tweezers,Curved Tip 130 mm, Tips made of nylon.
25836 Serial Number
11755 Cover,Leaf Weight

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