Izixazululo ezijwayelekile zokulinganisa i-pH
Ukulinganisa okuvamile kuwumkhuba ongcono kakhulu wokugcina ukunemba kokulinganisa kwenzwa/isilawuli se-pH, ngoba ukulinganisa kungenza ukufunda kwakho kunembile futhi kuthembeke.Zonke izinzwa zisuselwe kuthambeka kanye ne-offset (i-Nernst equation).Nokho, zonke izinzwa zizoshintsha njengoba iminyaka.Isixazululo sokulinganisa i-pH singakuxwayisa uma inzwa ilimele futhi idinga ukushintshwa.
Izixazululo ezijwayelekile zokulinganisa i-pH zinokunemba okungu- +/- 0.01 pH ku-25°C (77°F).I-Sinomeasure inganikeza izigcinalwazi ezidume kakhulu nezivame ukusetshenziswa (4.00, 7.00, 10.00 kanye no-4.00, 6.86, 9.18) futhi ezidaywe ngemibala ehlukene ukuze zibonakale kalula uma umatasatasa.
Isixazululo esijwayelekile sokulinganisa i-pH ye-Sinomeasure silungele cishe noma yisiphi isicelo kanye nezinsimbi eziningi zokulinganisa i-pH.Kungakhathaliseki ukuthi usebenzisa izinhlobo ezihlukahlukene zezilawuli nezinzwa ze-Sinomeasure pH, noma usebenzisa imitha ye-pH yebhentshi endaweni yaselabhorethri yezinye izinhlobo, noma imitha ye-pH ephathwa ngesandla, amabhafa e-pH angase afanelekele wena.
Qaphela: Uma ukala i-pH kusampula engaphandle kwebanga lokunemba elingu-25°C (77°F), bheka ishadi eliseceleni kwephakheji lebanga le-pH langempela lalelo zinga lokushisa.