time required for the descent of the liquid meniscus from the graduation line to the point at wich the meniscus appears to come to rest in the jet for one-mark pipettes and from the upper graduation line to the lower graduation line for two-mark pipettes, aeg, mis kulub vedela meniski laskumiseks gradueerimisjoonelt/skaalakriipsult punktini, kus menisk näib joas peatuvat ühe märgiga/skaalakriipsuga pipettide puhul, ja ülemisest gradueerimisjoonest/skaalakriipsust alumisele gradueerimisjoonele/skaalakriipsule kahe märgiga/skaalakriipsuga pipettide puhul, time required for the pipette to deliver its nominal volume, time required for the descent of the liquid meniscus from the zero line to the lowest graduation line of the volumetric instrument