SAE AS 6414A:2017 pdf free

SAE AS 6414A:2017 pdf free.Manufacturing Processing Requirements for Molded Elastomer Components Used in Aerospace Applications
This appendix details the technical and quality requirements for performing Temperature Uniformity Survey (TUS) on ovens used for post curing of elastomers. Manufacturers shall have a procedure for calibration of post cure ovens that require at a minimum, a nine point calibration that is NIST traceable, with an established calibration cycle maximum of 1 year. Other industry approved methods such as ASTM E145, D7969 with corresponding documentation are acceptable.
Shall be performed to measure the temperature uniformity and establish the acceptable work zone and qualified operating temperature range. A TUS shall also be performed after any Oven modification or adjustment that could have altered the temperature uniformity characteristics of the Oven.
Any persons completing the calibrations in house must have been trained to do so and have up to date training records at the time of calibration. The calibrations must be completed using calibrated equipment which is traceable to NIST or other nationally recognized standard. Outside contractors must have appropriate accreditation for oven calibration.
The Oven shall be held at the test temperature until all test sensors have stabilized. After stabilization, data collection shall continue for a minimum of 30 additional minutes. Once data collection begins, temperature data shall be recorded from all TUS sensors at a frequency of at least one set of all readings at least every 2 minutes for the duration of the survey.
All survey thermocouples shall be within the desired temperature range and shall not be changing such that they drift above or below the maximum or minimum temperature tolerance.
If the temperature uniformity is not within the tolerance specified, the cause of the deviation shall be determined and documented. A technical engineering review of parts processed in the oven since the last calibration shall be reviewed for quality impact. The equipment shall not be used for additional processing until the cause has been corrected and the TUS has been performed successully.SAE AS 6414A pdf free download.