NIST Traceable to ASTM D2240, F1957, ISO7619, & DIN Standards
PTC® manufactures and calibrates durometers to ISO 17025. We are A2LA Accredited using NIST Traceable Standards and meet the requirements of:
PTC Metrology has chosen A2LA as our accrediting body. In 2002 PTC received certificate number 1896.01 from A2LA covering calibration of durometers.
Our scope has expanded to include temperature, pressure, and relative humidity.
- ISO/IEC Guide 17025
- ANSI/NCSL Z540-1
All Calibration Standards are Traceable to the National Institute of Standards and Technology (NIST). The durometer calibration services and reports provided
by PTC Metrology will meet your A2LA, ISO, ANSI, MIL, DoD, EuroNorm and other international standards.
PTC Metrology has calibrated durometers for Nuclear Power Plants, GE, Boeing, 3M, and NASA and is currently supplying durometers to Lockheed Martin
for the new Spacecraft called " Orion". Orion is part of the Constellation Program to send human explorers back to the moon and beyond.
A written calibration report for any durometer covered by current ASTM D2440 or ASTM F1957 specifications is available from PTC Metrology.
Each certification provides both "as received" and "as left" data. The points calibrated are normally every 10 points over the durometers scale.
Certification reports are also available for DIN, JIS, ISO and proprietary standards. Other types and custom durometers can also be certified including
durometers from other manufacturers.
PTC® durometers type A, B, C, D, DO, E, O, OO and OOO are calibrated in accordance with ASTM D2240 section 7 which includes the following measurements:
The laboratory is equipped to handle every customer's needs.
- Indenter Geometry
- Indenter Extension
- Gage Linearity
- Force Curve Measurement
In durometer calibration this includes optical comparison, load cells, duro calibrators and gage blocks to measure all attributes listed in ASTM D2240
Section 7 and other international standards.
A2LA has MRAs (mutual recognition agreements)with NVLAP NIST, EA, ILAC, IAAC, and NACLA
(see http://www.a2la.org/recognition/cooplabs.cfm ) for details.
Accreditation is the unbiased assessment by a third party of the laboratory's quality program and technical capabilities. The third party assesses the laboratory
against a recognized standard. In December 1999, the new standard, ISO/IEC 17025, "General Requirements for the Competence of Testing and Calibration Laboratory's
was adopted and has now replaced ISO Guide 25 as the accepted standard for accredited test and measurement laboratories.
Accreditation indicates that a laboratory has demonstrated that it functions within the parameters of the standard. While accreditation is not a guarantee of a
laboratory's performance, it does provide a means for determining the laboratory's competence to perform particular types of tests or calibrations.
The technical evaluation during an accreditation includes a review (by experts in the relevant discipline) of calibration procedures, calibration standards, traceability, uncertainty analysis, actual results, and statistical process control.
Laboratory accreditation has been a requirement in many countries for years. Nationally recognized accreditation bodies have provided customers with confidence in calibration certificates and reports by employing generally established standards set by the European (CEN) or international (ISO) standardization bodies. Accreditation in the United States is voluntary. Nevertheless, as more companies become ISO 9000 certified, accreditation is becoming a more common practice in the United States.
PTC Metrology will notify you by email when your instrument is due for recalibration, in accordance with the period of validity that your quality system specifies.
Please register your instrument today.
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