Weights

Technology, Experience, Commitment...
1800SCALES.com offers only the best calibration and test weights. RLWS has been supplying high-quality precision measurement products and services for over 25 years. The combination of world class manufacturing technology, an experienced staff of professionals, and a commitment to total quality enables our weight suppliers to lead the industry in attaining a variety of quality certifications including ISO 9000 and ISO/IEC 17025. Please carefully make your weight selections as we do not accept returns.

What kind of certification requirements do you need for your calibration weights?

1 lb Weight Hanger 9.31" Capacity: 200 lbs 12825 1 lb weight hanger for Slotted Interlocking Weight -- 9.31" length ASTM Class 7 Capacity: 200 lbs $90.00
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1 lb. Cast Iron Weight ASTM Class 7 12876 Cast Iron ASTM Test Weight 1 lb. $48.00
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1.1111kg Weight Set, 500g-1mg NIST Class F SST 12516 1.1111kg Weight Set, 500g-1mg NIST Class F SST
$395.00 $355.00 On Sale!
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10 kg Slotted Interlocking Weight ASTM 6 12811 Slotted Interlocking Weight ASTM Class 6 10 kg $122.00
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10 lb. Cast Iron Weight ASTM Class 7 Grip Handle 12828 Cast Iron ASTM Class 7 Grip Handle Test Weight 10 lb. $72.00 $68.00 On Sale!
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10mg SST Leaf Weight NIST F 12920 10 mg Stainless Steel Leaf Weight NIST Class F $20.00
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11 lb. Stainless Steel Weight Kit 14 pcs 12615 NIST Class F Weight Kit, w/ weights from 5 lb - 1/32oz $470.00 $440.00 On Sale!
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110g Weight Set, 50g-1g NIST Class F 12500 110g Weight Kit, 50g-1g NIST Class F
$150.00
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111.11g Weight Set, 50g-1mg NIST Class F SST 12504 111.11g Weight Set, 50g-1mg NIST Class F SST
$200.00
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150g Stainless Steel Cylindrical Weight NIST Class F 12549 150g Stainless Steel Cylindrical Weight NIST Class F $45.00
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18.11111 kg Stainless Steel Weight Kit 33pcs 12542 NIST Class F weight kit, w/ weights from 5kg-1mg $985.00 $940.00 On Sale!
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1g Stainless Steel Cylindrical Weight NIST Class F 12499 1g Stainless Steel Cylindrical Weight NIST Class F $30.00
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1mg SST Leaf Weight NIST F 12924 1 mg Stainless Steel Leaf Weight NIST Class F $20.00
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2 lb. Cast Iron Weight ASTM Class 7 12874 2 lb. Cast Iron Grip Handle Test Weight ASTM Class 7 $52.00
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2.1111kg Weight Set, 1kg-10mg NIST Class F SST 12520 2.1111kg Weight Kit, 1kg-10mg NIST Class F SST
$435.00 $412.00 On Sale!
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20 kg Cast Iron Weight NIST Class F 12771 20 kg Cast Iron Weight NIST Class F, Part Number 12771 $125.00 $115.00 On Sale!
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20 lb. Cast Iron Weight NIST Class F Grip Handle 12870 20 lb. Cast Iron Weight NIST Class F $92.00 $84.00 On Sale!
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2g Stainless Steel Cylindrical Weight NIST Class F 12501 2g Stainless Steel Cylindrical Weight NIST Class F $30.00
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