20 milligram leaf weight possesses low magnetic permeability, good stability and resistance to corrosion.  Whether you own an Cahn microbalance, Mettler micro balance or Sartorius micro-balance we can supply you with high quality test weights to determine the accuracy.

This Ulti Mass Class U calibration leaf weight (WT20MGCLSUC), Flat Weight, ASTM Shape, includes Certificate of Calibration and is traceable to National Institute of Standards and Technology (NIST) standards.  Individual weight is packed in a plastic vial and then in bubble envelope.  Typical lead time is 5 to 7 business days from the date order is placed to shipping from NVLAP metrology lab located Arvata, Colorado.

Single-piece construction: Because the precise measurement of density can only be achieved using a single piece weight, all Sartorius weights are ASTM Type 1 single-piece weights.  This weight contain no air cavity or foreign adjusting material, thus providing the maximum mass stability.  In addition, it is an ASTM requirement that one-piece weights are used as standards and where mass stability is required.

This Ulti Mass Class U Mass Standard provide the greatest precision we offer.  Ideal for use as reference standards to calibrate other weights.  Ideal for use as reference standards for use with the Cahn Micro-balance model C-33, CAHN C-34 Microbalance, Mettler AX26 DeltaRange Micro Balance, Mettler-Toledo UMX2 Micro-Balance, Sartorius SE2 micro-balance, Sartorius ME5 micro balance, Sartorius MC21S micro balance, or Sartorius CP2P micro balance to name a few micro balances.

The mass standards produced by Sartorius today are designed to meet or exceed the standards of the American Society of Testing Materials (ASTM E617)

We offer a choice of 21, 17, 16, 9, 8 and 5 piece weight sets or individually weights ranging from 5kg to 1mg.  See the complete offering of calibration weights here.

Sartorius Traceable 20 MG Weight