1, uvavanyo lokwakheka kweekhemikhali

1. ngokwendlela ekwakhiwe ngayo iikhemikhali kunye neempawu zoomatshini zepayipi yasekhaya engenamthungo, ezifana ne-10, 15, 20, 25, 30, 35, 40, 45 kunye ne-50 yentsimbi, ukwakheka kweekhemikhali kufuneka kuhambelane nemigaqo ye-GB/T699-88. Iipayipi ezingenamthungo ezingenisiweyo kufuneka zihlolwe ngokwemigangatho efanelekileyo echazwe kwisivumelwano. Ukwakheka kweekhemikhali zentsimbi ye-09MnV, 16Mn, 15MNV kufuneka kuhambelane nemigaqo ye-GB1591-79.

2. Jonga kwi-gb223-84 “Iindlela zoHlalutyo lweeKhemikhali zeNtsimbi kunye neAlloy” ukuze ufumane iindlela ezithile zohlalutyo.

3. uhlalutyo lokuphambuka ngokwe-GB222-84 “uhlalutyo lweekhemikhali zentsimbi ngeesampuli kunye nokuphambuka kokwakheka kweekhemikhali zemveliso egqityiweyo”.

2, uvavanyo lokusebenza ngokomzimba

1. ngokwendlela esebenza ngayo imibhobho yasekhaya engenamthungo, intsimbi yekhabhoni eqhelekileyo ngokwendlela yokwenziwa kwentsimbi ye-GB/T700-88 class A (kodwa kufuneka iqinisekise ukuba umxholo wesalfure awudluli kwi-0.050% kwaye umxholo we-phosphorus awudluli kwi-0.045%), iipropati zayo zoomatshini kufuneka zihlangabezane nexabiso elichazwe kwitheyibhile ye-GB8162-87.

2.Ngokutsho kovavanyo loxinzelelo lwamanzi, unikezelo lombhobho wasekhaya ongenamthungo kufuneka luqinisekise umgangatho wovavanyo loxinzelelo lwamanzi.

3. Ukuhlolwa kokusebenza kombhobho ongenamthungo ongeniswe kwamanye amazwe kuya kwenziwa ngokwemigangatho efanelekileyo echazwe kwisivumelwano.