1, Ifenitshala inokohlulwa ibe yifenitshala yendlu yangaphakathi, ifenitshala yeofisi kunye nefanitshala yangaphandle ngokwemeko yesicelo.
2, Ifenitshala inokohlulwa ibe yifenitshala yomntwana kunye nefenitshala yabantu abadala ngokwabasebenzisi.
3, Ifenitshala inokohlulwa ibe sisitulo, itafile, ikhabhathi njl. ngokodidi lwemveliso.
4, Iindlela zokuvavanya kunye nemigangatho ekhankanyiweyo ivela kuMgangatho waseYurophu, okt BS EN-1728, BS-EN12520, BS-EN12521, BS EN-1730, BS EN-1022, EN-581, EN-1335, EN527.