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Ba?kaca, adi yang?n kap?lar?n?n, sertifikalar? olmayabilece?i ve yang?n s?ras?nda yeterince dayan?kl? olmayabilece?i konusunda tembihyorlar.Dayan?kl?l?k: Yang?n kap?s?n?n yang?na dayan?kl? olmas? ve mukannen bir müddet süresince ?s?y? engelleyebilmesi önemlidir. Bapn?n dayan?kl?l???na nazaran belirlenen “EI” k?ymeti, yang?na kar?? direnç se