Kushandiswa kwezviridzwa:
Inoshandiswa kuyedza kuramba kupisa uye kuramba kunyorova kwemachira, mbatya, magumbeze, nezvimwewo, kusanganisira musanganiswa wemachira ane jira rakawanda.
Sangana nezvinodiwa:
GBT11048, ISO11092 (E), ASTM F1868, GB/T38473 nedzimwe mitemo.