1. Ingano zitandukanye, ihuza nibidukikije bitandukanye, biguha amahitamo menshi.
2. Uburemere buhagije-net, nta gukata abaza.
3. Usibye uburemere busanzwe, ubundi buremere bwuburemere burahari.Biremereye kandi byoroshye.
4. Amahame akomeye.Na kalibrasi yumutegetsi.Ibipimo mpuzamahanga byo kwipimisha.
5. Gukomera <180.Gukora neza 100%.
6. Ibi bikoresho bihujwe cyane nu miyoboro irimo amazi, amavuta, umwuka, gaze yamakara nibindi nkitangazamakuru.