BS EN 60068-2-17:1995

Committees responsible
National foreword
Foreword
Survey of sealing tests
1. Definitions
2. Test Qa: Sealing of bushes, spindles and gaskets
2.1 Object
2.2 Scope
2.3 General description of the test
2.4 Initial measurements
2.5 Conditions
2.6 Final measurements
2.7 Information to be given
3. Test Qc: Container sealing, gas leakage
3.1 Object
3.2 Scope
3.3 General description of the test
3.4 Test Method 1
3.5 Test Method 2
3.6 Test Method 3
3.7 Information to be given in the relevant specification
4. Test Qd: Container sealing, seepage of filling liquid
4.1 Object
4.2 Scope
4.3 General description of the test
4.4 Severities
4.5 Preconditioning
4.6 Initial measurements
4.7 Conditioning
4.8 Final measurements
4.9 Information to be given in the relevant specification
5. Test Qf: Immersion
5.1 Object
5.2 General description of the test
5.3 Initial measurements
5.4 Preconditioning
5.5 Conditioning
5.6 Recovery
5.7 Final measurements
5.8 Information to be given in the relevant specification
6. Test Qk: Sealing tracer gas method with mass
     spectrometer
6.1 Object
6.2 Scope
6.3 General description of the test
6.4 Test Method 1 (for specimens not filled with helium
     during manufacturing)
6.5 Test Method 2 (for specimens filled with helium during
     manufacturing or for the requirements of this test)
6.6 Test Method 3 (applicable to specimens to be mounted
     on bulkheads or panels)
6.7 Information to be given in the relevant specification
7. Test Ql: Bomb pressure test
7.1 Object
7.2 Scope
7.3 General description of the test
7.4 Initial measurements
7.5 Conditioning
7.6 Recovery
7.7 Final measurements
7.8 Information to be given in the relevant specification
8. Test Qm: Tracer gas sealing test with internal
     pressurization
8.1 Object
8.2 Scope
8.3 General description of the test
8.4 Pre-conditioning
8.5 Conditioning
8.6 Information to be given in the relevant specification
9. Test Qy: Pressure rise sealing test
9.1 Object
9.2 Scope
9.3 General description of the test
9.4 Calibration of the test equipment
9.5 Information to be given in the relevant specification
Annexes
A. Example of a test chamber for Test Qa
B. Guidance for Test Qc
C. Guidance for Test Qd
D. Interrelation of test parameters for Test Qk
E. Guidance for Test Qk
F. Guidance for Test Ql
G. Guidance for Test Qm
H. Guidance for Test Qy

Procedures for various tests using different conditioning methods appropriate for different applications. Two methods of leak detection are described; internal detection measuring changes of electrical characteristics and external detection measuring the escape of the test medium through the leak.

This test can be used for the detection of gross leaks.