Gilson offers a selection of Standard Reference Materials (SRM) issued by the U.S. National Institute of Standards and Technology (NIST) for the assessment of sieves and other instruments such as sedimentation instruments, particle counters, and more.
SRMs are used on sieves in the same manner that tests would be performed, and a percentage of retained material is calculated for each sieve. Effective openings are determined from calibration data on the supplied NIST Certificate. SRMs only determine average opening sizes and do not take the place of Verification Services, but are an economical way to monitor performance while allowing sieves to remain in service.
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