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Old Will's company is:
Professional Retail Service
451 E 124th Ave
Thornton, CO 80241

We know you have a choice when you buy scales online. Just know that when you buy digital scales from Old Will, it's always a "Worry Free Deal".

ASTM Class 4 Calibration Weight - 20 milligram

PN: OHAUS-ASTM4-20MG
MFR PN: ASTM4-20MG
In Stock
Old Will's Price: $25.20
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53021-00 Calibration Weight Only - No Certificate
53021-00/C Calibration Weight & NVLAP Certificate [+$56.70]
NVLAP Certificate Information:

If you order this weight with the optional NVLAP certificate, please allow three to four weeks for certification and shipment. During checkout, please provide the name you wish to appear on the certificate in the customer notes section.

This ASTM Class 4 stainless steel and aluminum 20 milligram calibration weight has an accuracy of +/- 0.07 milligrams (0.00007 grams). Use this calibration weight alone, or combine it with more weights to accurately calibrate your digital weighing scale. This calibration weight is available with an NVLAP certificate (model number 53021-00/C), or without (model number 53021-00).
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