Isetyenziselwa ukuvavanya ipropati ethintela ilangatye yezinto ezitshayo ezifana neempahla zelaphu, iintsana kunye neempahla zabantwana, isantya sokutsha kunye nobukhali emva kokutsha.
Isetyenziselwa ukumisela iimpawu zokutsha ezithe tye zamalaphu ahlukeneyo, umqamelo wemoto kunye nezinye izinto, ezibonakaliswa lizinga lokusasazeka komlilo.
Umgangatho weNtlanganiso:
GB/T5453、GB/T13764,ISO 9237、EN ISO 7231、AFNOR G07,ASTM D737,BS5636,DIN 53887,EDANA 140.1,JIS L1096,TAPPIT251.