YY191A Choyesera kuyamwa kwa madzi cha nsalu zopanda nsalu ndi matawulo (China)

Kuyamwa kwa matawulo pakhungu, mbale ndi pamwamba pa mipando kumachitika m'moyo weniweni kuti ayesere kuyamwa kwake madzi, komwe kuli koyenera kuyesa kuyamwa kwa matawulo, matawulo a nkhope, matawulo ozungulira, matawulo osambira, matawulo ndi zinthu zina za matawulo.

Kukwaniritsa muyezo:

ASTM D 4772– Njira Yoyesera Yokhazikika Yomwe Madzi Amadzi Amachokera Pamwamba pa Nsalu za Tawulo (Njira Yoyesera Kuyenda)

GB/T 22799 “—Chida chopangidwa ndi thaulo Njira yoyesera kuyamwa madzi”