Prezentul Standard Interna?ional stabile?te metoda de determinare a densit??ii de referin?a a ?evilor ?i fitingurilor de polietilen? (PE).
El se aplic? ?evilor ?i fitingurilor de polietilen?, indiferent de domeniul de utilizare, care con?in doar an?ioxida
SR ISO 4451:1995 history
1995SR ISO 4451:1995 Polyethylene (PE) pipes and fittings - Determination of reference density of uncoloured and black polyethylenes