Sper Scientific Direct

lr cod vials mercury-free method: dichromate reactor digestion

low range cod vials - us epa accepted

nitrite high range test kit (0-250 ppm)

nitrite test strips -2-80ppm

orp standard 100mv +/- 5% @ 25ºc

orp standard 240mv

orp standard 300 mv +/-5% @25°c

dissolved oxygen test kit (1-12 ppm)

dissolved oxygen test kit (0-1ppm)

ozone test kit (0-0.6 & 0.6-3.0ppm)

ozone test strips

wide range ph test strips 0-12

universal ph test strips 0-14

phosphorus test strips 0-50ppm

potassium chloride 4m saturated with agcl

quat chek 0-1000ppm high-range sanitizer / disinfectant test kit (4 pack)

quat test kit - titrator version

tds standard 1000ppm as 442 standard

tds standard - 150 ppm as 442 standard

hi range free chlorine test strips 0-600mg/l