Hach DR3900 Vis- Spectrophotometer

[@pikuset9177]

Low silica testing procedure
Which Chemical add in sample water

[@sukumarmitra2834]

Sir, make a videos for silica calibration and calibration graph in water sample.

[@dineshkumarmishra9330]

Nice instrument.

[@Lashari0105]

U should add English subtitles

[@chotikalaksana5381]

Stay tuned for English version, Our team will luance soon.

[@suzannaoxley3205]

good demo - but not in English

[@chotikalaksana5381]

Stay tuned for English version, Our team will luance soon.

[@tofanpradhan7899]

ENGLISH PLEASE

[@chotikalaksana5381]

Stay tuned for English version, Our team will luance soon.