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Intermediate checks Testing Lab
We are independent mechanical testing lab.
Recently we got intiial audit for 17025 and major concern had been raised on IMC.as testing lab i bought one large quality control material and make my own samples and
Based on repeatability of final reading in MPA for (UTM) i made 1.5x expanded uncertainty as my UCL/LCL.
auditor told me that I should check in primary unit like here its KN and acceptance should be of machine error range.
2nd observation :
I m using slip gauge as master instrument for doing IMC for vernier calipers m, gauge block have only OEM
verification no traceability , he insisted to have calibration of slip gauge.Need your inputs on this.