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Essential Weights™ Calibration Set, ASTM Classification

  • ASTM Class 1 weights
  • Polished stainless steel Type II design
  • Sealing cavity
  • Density is approximately 7.95 g/cm3
  • Special PVC weight case or ABS case
  • Precision tweezers included
  • Configurations available ideal for calibration, shift tests and sensitivity tests
  • Other configurations available by special order
  • Meets USP-41 requirements for intermediate checks
  • Includes NVLAP Accredited Certificate of Calibration

Essential Weights are customized sets of three or four stainless steel test weights specifically tailored to your laboratory precision weighing equipment. Ideal for specific calibrations, shift tests and sensitivity tests, Essential Weights are designed with convenience in mind without sacrificing accuracy or quality. These polished stainless steel Type II design ASTM Class 1 weights include a small, durable carrying case. Maintain routine laboratory calibration best practices with Rice Lake’s Essential Weights.


Resources / Downloads

Title View Email Category Type
Are All Calibrations The Same? Email Calibration Services|Calibration Weights/Services|Test / Calibration Weights Articles
Class F Calibration Weights No Longer Sold for Legal Metrology Use Starting January 2020 View Email Calibration Weights/Services|Test / Calibration Weights|Calibration Services Articles
How to Pack Your Weights in 5 Steps Email Calibration Weights/Services|Calibration Services Articles

Title Download Email
Precision Laboratory ASTM Essential Weights Class 0 - 1 Catalog Page Download Email

Title Collateral Wizard Request Download Email Category
Essential Weights Sales Literature Request Download Email Calibration Weights/Services|Calibration Weights|ASTM Precision Laboratory
Weights and Calibration Services Request Download Email Calibration Weights/Services|Calibration Weights|Test / Calibration Weights

Title View Email Category
USP Standard Modification - Chapter 41 and 1251 Download Email Calibration Weights|Calibration Weights/Services|Precision Measurement|Test / Calibration Weights

Title View Download Email Category
Know Your Classification for Accuracy View Email Precision Measurement


ASTM Class 0

Part # Description List Price Cart
186177 Set,Essential Weight 2g 200mg, 1mg ASTM Class 0

List Price: $370.00

186178 Set,Essential Weight 5g 500mg, 1mg ASTM Class 0

List Price: $400.00

ASTM Class 1



Part # Description List Price Cart
11714 Weight Glove,Cloth White .

List Price: $6.75

11711 Weight,Tweezers 3.54x.46 Delrin

List Price: $5.00

152414 Tweezers,Curved Tip 130 mm, Tips made of nylon.

List Price: $43.00

11747 Weight,Lift 3/8x7/8x5.89 Handle Plexiglass, 200 g to 3 kg

List Price: $21.00

Replacement Parts

Replacement parts can only be purchased through trained and authorized dealers. You must be logged in as a dealer to view any available replacement parts.

To locate a dealer in your area, please call us at 1-800-472-6703 or fill out a request online.

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