Key Highlights
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Manufactured to International Recommendation OIML R111 specifications
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OIML Class M1 accuracy for routine calibration and verification tasks
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Complete calibration weight set covering 500 mg through 50 g
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Supplied with a protective case for safe storage and transport
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Satin surface finish designed for durability in frequent handling
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Nominal value permanently marked on each weight
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Suitable for industrial laboratory and quality control applications
The 500 mg â 50 g Calibration Weight Set, OIML Class M1 is designed for dependable performance in routine calibration and verification environments. This set is well suited for laboratories and industrial facilities that require reliable working standards rather than ultra-high precision reference weights.
Manufactured in accordance with OIML R111 international standards, the set includes multiple individual M1 calibration weights housed in a protective case for secure handling and storage. The satin surface finish enhances durability during frequent use while helping maintain consistent mass characteristics. Each weight is clearly marked with its nominal value for easy identification and traceability.
OIML Class M1 calibration weight sets are commonly used for quality control processes, tolerance testing, and routine balance verification in production and laboratory settings.
Applications
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Calibration of Class I and Class II analytical balances
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Reference mass verification
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Laboratory traceability programs
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Tolerance testing and compliance checks
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Educational and research laboratory use
Specifications
| Specification | Details |
|---|---|
| Weight Range | 500 mg â 50 g |
| Accuracy Class | OIML M1 |
| Standard | OIML R111 |
| Surface Finish | Satin |
| Material Density | Approx. 7.95 g/cm3 |
| Nominal Marking | Permanently marked |
| Packaging | Protective case included |
500 mg through 50 g OIML Weight Set Contents
| Set Range | 500 mg â 1 mg | 500 mg â 100 mg | 50 g â 1 mg | 50 g â 1 g |
|---|---|---|---|---|
| Included Weights | 1 Ã 500 mg 2 Ã 200 mg 1 Ã 100 mg 1 Ã 50 mg 2 Ã 20 mg 1 Ã 10 mg 1 Ã 5 mg 2 Ã 2 mg 1 Ã 1 mg |
1 Ã 500 mg 2 Ã 200 mg 1 Ã 100 mg |
1 Ã 50 g 2 Ã 20 g 1 Ã 10 g 1 Ã 5 g 2 Ã 2 g 1 Ã 1 g 1 Ã 500 mg 2 Ã 200 mg 1 Ã 100 mg 1 Ã 50 mg 2 Ã 20 mg 1 Ã 10 mg 1 Ã 5 mg 2 Ã 2 mg 1 Ã 1 mg |
1 Ã 50 g 2 Ã 20 g 1 Ã 10 g 1 Ã 5 g 2 Ã 2 g 1 Ã 1 g |
| Piece Count | 12 | 4 | 20 | 8 |
| Total Weight | 1.11 g | 1 g | 111.11 g | 108 g |
| Class E1 Part # | 30850 | 30854 | â | â |
| Class E2 Part # | 30851 | 30855 | 96477 | 96478 |
| Class F1 Part # | 30852 | 30856 | 96479 | 96480 |
| Class F2 Part # | 30853 | 30857 | 96481 | 96482 |
| Class M1 Part # | 161537 | â | â | â |
Larger OIML Weight Sets
| Set Range | 500 g â 1 mg | 1 lb | 8 lb | 7.72 lb |
|---|---|---|---|---|
| Piece Count | 7 | 9 | 13 | 16 |
| Total Weight | 710 g | 1 lb | 8 lb | 7.72 lb |
| Part # | 12545 | 12630 | 12652 | 12659 |
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500 mg through 50 g OIML Weight Set Contents
| Weight Included | 500 mg â 1 mg | 500 mg â 100 mg | 50 g â 1 mg | 50 g â 1 g |
|---|---|---|---|---|
| 50 g | â | â | (1) 50 g | (1) 50 g |
| 20 g | â | â | (2) 20 g | (2) 20 g |
| 10 g | â | â | (1) 10 g | (1) 10 g |
| 5 g | â | â | (1) 5 g | (1) 5 g |
| 2 g | â | â | (2) 2 g | (2) 2 g |
| 1 g | â | â | (1) 1 g | (1) 1 g |
| 500 mg | (1) 500 mg | (1) 500 mg | (1) 500 mg | â |
| 200 mg | (2) 200 mg | (2) 200 mg | (2) 200 mg | â |
| 100 mg | (1) 100 mg | (1) 100 mg | (1) 100 mg | â |
| 50 mg | (1) 50 mg | â | (1) 50 mg | â |
| 20 mg | (2) 20 mg | â | (2) 20 mg | â |
| 10 mg | (1) 10 mg | â | (1) 10 mg | â |
| 5 mg | (1) 5 mg | â | (1) 5 mg | â |
| 2 mg | (2) 2 mg | â | (2) 2 mg | â |
| 1 mg | (1) 1 mg | â | (1) 1 mg | â |
| Piece Count | 12 pcs. | 4 pcs. | 20 pcs. | 8 pcs. |
| Total Set Weight | 1.11 g | 1 g | 111.11 g | 108 g |
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Maintain reliable and repeatable weighing performance with OIML Class M1 calibration weight sets from SellEton Scales. Contact our team today to request pricing, confirm availability, or speak with a calibration specialist for your laboratory requirements.
Free Shipping: Available across 48 continental USA. Extra charges may apply for residential, farm, or rural areas.
Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
Delivery Time: Typically 5 to 7 business days, varying by location and external conditions.
Tracking Information: Provided via email upon shipment. Accessible through account login. Additional information available upon request.
Return Policy: 15-day return period for unused, original condition products. A 25% restocking fee applies. Buyer covers original and return shipping costs.
Customer Support: Contact at (844)-735-5386 or info@selletonscales.com for queries or concerns about shipping.