Kodi Vietnam Standard Moving Progn Netventing utoto ndi gawo liti loyesa
Kumasulidwa nthawi:2025-10-09
Vietnam Standard Symmastic Strict utoto (mogwirizana ndi tcvn 8791: 2011) ndi mainjiniya wokhazikika, wokhazikika chifukwa cha nyengo yotentha ya ku Vietnam, Mvula yambiri, ndi chinyezi champhamvu. Yopangidwa ndi mateni opangidwa (E.g., C5 Petroleum slin), mainchesi dioxide (zoyera), michere yagalasi, imakhazikika mkati mwa mphindi 1-3 pa ozizira. Ubwino Wofunika Kumaphatikizapo Moyo wautali (zaka 2-5), kutsatira kwamphamvu kwa Asphalt / netrete
Magawo oyeserera a Pervn 8791: 2011:
Malo ofewetsa: ≥100 ° C (nthawi zambiri 105-115 ° C) kuti mupewe kusintha kutentha
Kuyanika Nthawi:
Magalasi Bead: 20-30% (osinthika) kuti musangalale
Abrasion Deunince
Madzi / alkali kukana: osasungunuka kapena kusokonekera pambuyo pakumiza kwa maola 24 m'madzi kapena calcium hydroxide yankho
Mphamvu Yompress: ≥12 MPA (E.g., malonda a bole amakwaniritsa 26 MPA
Kukana kwa skid: ≥45 bpn (nambala yaku Britain pendulum) kuti muchepetse
Choyipa cha Luminance: ≥0.70 choyera, ≥0.50 kwa chikasu (chikasu)
Macheke owonjezera amabisa kutentha (osawonongeka pa 200 ° C kwa maola 4) ndi kutsata chilengedwe (otsika kwambiri). Gawo ili onetsetsani kuti chitetezo cha misewu ya Vietnam, chochepetsera njira yokonza pafupipafupi.
