Secondary working standard with a particle distribution traceable to NIST SRM 2806a and 2806b. For use with particle counters calibrated in accordance with ISO 11171.
Certified in accordance with the essential requirements of ISO 17034. Homogeneity and variability checked in accordance with ISO Guide 35 and ISO 11171. Includes a certificate of measurement.
- 24 month shelf life from manufacture date
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