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PTC Metrology NIST Calibration Service Since 1946. PTC Metrology ® is accredited by A2LA to ISO/IEC 17025, ANSI/NCSL Z540-1. Our certificate number 1896.01 from ...
A2LA Temperature Lab  ANSI Z540-1  ASTM D2249  ASTM F1957  ASTM Technical Committee  Durometer Calibration  PTC Metrology 
www.ptcmetrology.com - 2009-02-04
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