GB/T 40336-2021 Active National standards

GB/T 40336-2021 Non-destructive testing—Leak testing—Calibration of reference leaks for gases

Publish Date: 2021-05-21 Implement Date: 2021-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 40336-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Non-destructive testing

Publish Date: 2021-05-21

Implement Date: 2021-12-01

Pages: 28 pages

Scope

This document specifies two calibration methods for leak detection instruments used to determine leakage rates: one is calibration by comparing with a reference leak hole, and the other is calibration by directly measuring or calculating gas pressure based on a known volume. This document is applicable to the calibration of leak holes with leakage rates within the range shown in Figure 1. a) Comparative calibration b) Volume calibration Normal range; Possible range. Reference number explanation: X -- Leakage rate, unit: Pascal cubic meters per second (Pa·m3/s); A -- Method A; B -- Method B; AS -- Method AS; BS -- Method BS; C -- Method C; D -- Method D; E -- Method E; F -- Method F; G -- Method G.