1. Amanyathelo okucoca ukukhutshwa kwevalvu:
Amalungu athotyiweyo evalve kufuneka anyangwe ngale nkqubo ilandelayo phambi kokuhlanganisa:
(1) Ngokweemfuno zokusetyenzwa, ezinye iindawo zevalvu zifuna ukugudiswa ngaphandle komatshini wokutshiza phezu komhlaba;
(2) Khupha onke amalungu evalvu;
(3) I-Pickling kunye ne-passivation iya kuqhutywa emva kokucoca (i-arhente yokucoca ayinayo i-phosphorus);
(4) Emva kokukhetha kunye nokugqithisa, hlambulula ngamanzi ahlambulukileyo ngaphandle kwe-reagent residu (eli nyathelo lishiywe kwiingxenye zentsimbi ye-carbon);
(5) Indawo nganye yesivalo iyakusulwa yome ngelaphu elingalukwanga, kwaye umphezulu wamalungu afana noboya wocingo awusayi kugcinwa, okanye uvuthelwe wome ngenitrogen ecocekileyo;
(6) Sula indawo nganye yevalvu ngelaphu elingalukwanga okanye ngephepha lokucoca elichaneke neligutyungelwe ngotywala obucocekileyo de kungabikho mbala umdaka.
2. Iimfuno zeNdibano zokunciphisa iivalvu
Iindawo ezicociweyo zevalve yokucoca kufuneka zitywinwe kwaye zigcinwe ukufakwa. Iimfuno zenkqubo yofakelo zezi zilandelayo:
(1) Indawo yokusebenzela yofakelo lwevalvu yokuthambisa kufuneka icoceke, okanye indawo ecocekileyo yethutyana (efana nelaphu elinemibala esanda kuthengwa okanye ifilim yeplastiki) kufuneka yakhiwe ukunqanda uthuli ukuba lungangeni ngexesha lofakelo lwesivalo.
(2) Abasebenzi beNdibano bafanele banxibe iiovaroli zomqhaphu ezicocekileyo, iminqwazi yomqhaphu esulungekileyo, zingavuzi iinwele, izihlangu ezicocekileyo kunye neeglavu zeplastiki (ukususa amafutha).
(3) Izixhobo zokudibanisa kufuneka zihlanjululwe kwaye zicocwe phambi kokudibanisa ivalve yokucoca ukuqinisekisa ukucoceka.
Ixesha lokuposa: Nov-19-2021
