ARP7446 Vacuum Gauge Calibration

Current

03/06/2019

Features
Issuing Committee
Scope
Content
This SAE Aerospace Recommended Practice (ARP) addresses the general procedure for the best practices for minimizing uncertainty when calibrating thermal conductivity and cold cathode vacuum gauges, which includes the vacuum sensor(s) and accompanying electronics necessary for a pressure measurement to be made. It also includes the best practices for an in-process verification where limitations make it impossible to follow the best practices for minimizing uncertainty.
Verifying the accuracy and operation of vacuum gauges is critical to ensure the maintenance of processes while under vacuum.
Rationale
Content
ARP7449, Vacuum Gauge Calibration, was written to provide a best practice method for the calibration and testing of vacuum measuring systems for thermal processing equipment. Prior to this ARP, there was no guidance to follow. Aerospace standards such as AMS2769 and subscribing aerospace primes require vacuum system calibration to manufacturers recommendations, but many of these recommendations lacked detail instructions on the method of calibration.
Meta TagsDetails
DOI
https://doi.org/10.4271/ARP7446
Pages
6
Citation
SAE International Recommended Practice, Vacuum Gauge Calibration, SAE Standard ARP7446, Issued March 2019, https://doi.org/10.4271/ARP7446.
Additional Details
Publisher
Published
Mar 6, 2019
Product Code
ARP7446
Content Type
Recommended Practice
Status
Current
Language
English

Revisions