Common test methods for insulating and sheathing materials of electric cables Part 4:Methods specific to polyethylene and polypropylene compounds Section two:Elongation at break after pre-conditioning—Wraping test after pre-conditioning—Wrapping test after thermal ageing in air—Measurement of mass increase Long-term stability test(Appendix A) Test method for copper catalysed oxidative degradation(Appendix B)
NORMA vydána dne 28.10.1997
Označení normy: GB/T 2951.9-1997
Poznámka: NEPLATNÁ
Datum vydání normy: 28.10.1997
Země: Čínská technická norma
Kategorie: Technické normy GB