(1) JJG99-90 na<Ibu> nwere iwu zuru ezu gbasaranhazi usoro dị iche iche nkeklaasị nke ibu arọ, nke bụ ihe ndabere makanhazi ndị ọrụ.
(2) Maka klas nke mbụibu, asambodo nhazi kwesịrịgosi uru edoziri nke oke na vacuum, oke ahụ n'ezie na vacuum na uru edoziri nke oke ahụ agbanwere.
(3) Maka ibu nke klas nke abụọ na nke dị ala, asambodo nhazi kwesịrịgosi uru nhazi oke na uru oke oke nke oke a gbanwere.
(4) Maka ibu ọkwa, ọ gwụla ma enwere ihe pụrụ iche achọrọ, naanị nnabata iwu kwadoro ka a na-enyeegosiri na izugbenhazi asambodo, a naghịkwa enye uru mmezi ọ bụla.
(5) Maka ibu arọ e mepụtara tupu iwu JJG99-90, enwere ike ijikwa ibu arọ ọkọlọtọ dịka iwu ndị a si dị:
a. Maka ibu arọ siri ike nke klas mbụ na nke klas nke abụọ, a ka nwere ike iji ha dị ka ibu arọ nke klas mbụ na nke klas nke abụọ.
b. N'ihi iwu ọhụrụ a, ibu klas nke mbụ, nke abụọ, E1, wdg., 1 (E1), E2, wdg., 2 (E2), F1, wdg., 3 (F1) ibu klas nke atọ (F1) ga-abụrịrị ahụ siri ike nke ihe niile. Ya mere, ibu ọkọlọtọ nke mbụ nke klas nke abụọ ruo nke anọ nwere njikwa ọsọ.oghere kwesịrị ịbụklaasịF1 na n'okpuru O nwere ike ịbụ na o meghị ihe ọbụla gbasara ya. klaasịF1.
c. Iwu ọhụrụ ahụ kwukwara na uru nhazi oke nke ibu ọkwa mgbe nke mbụ gasịrịnhazi ma ọ bụ ndozi agaghị agafe 1/ nke nnabata ibu. Dịka edemede a si kwuo, ibu mbụ nke klas nke abụọ ruo nke ise nwere mgbanwena-eme oghere enwere ike itinye ya n'usoro ọkwa na ọkwa ọhụrụ.
d. Ihe atụ
Ibu nke klas nke abụọ 1kg nwere oghere nhazi, oke ndidi±5mg, lelee F2 na ndidi ibu ndị ọzọ±Tebụl nnabata ibu klas 30mg; 4 (F2) bụ±15mg. Ya mere, a na-eji ibu ahụ eme ihe dị ka ibu ọkọlọtọ dịka F2, nanhazi nsonaazụ ga-enye uru mmezi; ọ bụrụ na ibu ọrụ bụ ọkwa 4 (F2), agaghị enye uru mmezi.
Maka ibu nke klas nke atọ nke 1kg nwere oghere nhazi, enwere ike iji ya dị ka ibu klas M1 na 5 (M1) n'otu ụzọ ahụ.
Maka ibu nke klas nke anọ nke 1kg nwere oghere nhazi, enwere ike iji ya dị ka ibu klas M2 na 6 (M2) n'otu ụzọ ahụ.
Na mmechi, nsonaazụ ndị a dị n'elu na-emetụtakwa ibu nke oke ibu ndị ọzọ. A na-ekewa ibu mbụ nke klas nke abụọ ruo nke ise (ma e wezụga nke klas nke abụọ siri ike) dị ka F2, M1, M2 ma ọ bụklaasị4 (F2),klaasị5 (M1),klaasị6 (M2) naklaasịIbu klas 7 (0).
Oge ozi: Julaị-01-2022