CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Abbreviations
 5     Storage conditions
 6     Electrical characteristics
        6.1     Spark-over voltages (see 7.1, 7.2)
        6.2     Holdover voltages (see 7.5 and Figures 4 and 5)
        6.3     Insulation resistance (see 7.3)
        6.4     Capacitance
        6.5     Transverse voltage
        6.6     Life tests (see 7.6 and 7.7)
        6.7     Short-circuit behaviour
 7     Test methods
        7.1     d.c. spark-over voltage
        7.2     Impulse spark-over voltage
        7.3     Insulation resistance
        7.4     Capacitance
        7.5     Holdover test
        7.6     Impulse life – All types of gas discharge tube (see 6.6)
        7.7     a.c. life – All types of tube (see 6.6)
        7.8     Short-circuit test
        7.9     Impulse transverse voltage for 3-electrode gas discharge tubes
 8     Radiation
 9     Environmental tests
        9.1     Robustness of terminations
        9.2     Solderability
        9.3     Resistance to soldering heat
        9.4     Vibration
        9.5     Damp heat cyclic
        9.6     Sealing
        9.7     Low temperature
10     Identification
       10.1     Marking
       10.2     Documentation
11     Ordering information
Annex A – Electrical characteristics of GDT
Annex B – Test circuit for GDT used in ISDN circuits