CMTS Calibration Laboratory Control Procedure

Questions and Answers

25 ± 15 °C

55 ± 25%

Accredited Calibration

Upon customer's request or resource limitation Signup and view all the answers

There are one or two tests with out-of-tolerance results Signup and view all the answers

To provide a system of control for the calibration process Signup and view all the answers

To adhere to the process described in the document Signup and view all the answers

Cebu Metrologyx Technical Services Signup and view all the answers

Out-of-Tolerance Signup and view all the answers

Document No.Title PNS ISO/IEC 17025:2017 Signup and view all the answers

$23 ± 5$ °C (18°C to 28°C) Signup and view all the answers

Study Notes

The laboratory manager is responsible for maintaining the environmental condition of the CMTS calibration laboratory.
The applicable environmental condition for on-site calibration must be: • 25 ± 10 °C (15°C to 35°C) for Temperature • 55 ± 25 % (30 % to 80%) for Relative Humidity
CMTS Lab personnel must verify the suitability of the environment before proceeding with calibration.
If the temperature or relative humidity is out of the limit, necessary corrective action must be initiated, and calibration activities will be suspended.

Accredited Calibration: • Done in a manner traceable to national and international standards • In accordance with PNS ISO/IEC 17025:2017 • Report must be signed by the approved signatory, and the PAB logo is affixed in the calibration certificate
Traceable Calibration: • Instrument tested using manufacturer or applicable procedures • Processes ensure testing with traceability to national and international standards, but do not necessarily fulfill all the requirements of PNS ISO/IEC 17025:2017 • PAB logo is not affixed in the calibration certificate

Limited Calibration is carried out due to: • Customer's request • Lack of facility or resources in the calibration laboratory
"Not tested specifications or ranges" are clearly mentioned in the calibration report
Agreement with the customer for the Limited Calibration status is indicated in the Calibration Service Request, CMTS-FM-02

Conditional Calibration is carried out when: • One or two test/s in the result of calibration has an OOT or non-compliance with specification • Adjustment is not possible
Agreement with the customer for the Conditional Calibration status is indicated through: • DUT Service Report, CMTS-FM-57 • Onsite DUT Service Report, CMTS-FM-58 for Onsite Calibration
Specify in the remarks section in the calibration certificate, the Out of Tolerance function of the DUT
If 3 or more tests result of calibration has an OOT or non-compliance and adjustment is not possible, the DUT is to be remarked as defective