Vial Tests. TNTplus® vial chemistries work with: DR6000TM UV-VIS Spectrophotometer · DR3900TM Benchtop Spectrophotometer
Learn More · View Products · Spectrophotometers · With over half a century of innovating spectrophometry technology, Hach
Instruments · DR1900 Portable Spectrophotometers · DR300 Lab Instruments Colorimeters · DR3900 Laboratory Spectrophotometer
Meters and Titrators · Achieve accurate, quick and reliable water hardness measurement. From spectrophotometers with
and compact portable spectrophotometers for field use. Shop Now · Nitrogen Chemistries and Consumables · Hach’s quality
· Portable Nitrate and Nitrite Meters · Both lightweight and durable, Hach portable spectrophotometers provide on-the-go
by the human eye, it is measured by a photometer (colorimeter or spectrophotometer) to produce a more precise pH reading
proportional to the chlorine concentration. The color intensity is measured by eye, colorimeter or spectrophotometer
such as a lake or river. Spectrophotometric Method · A spectrophotometer measures light transmittance of the water sample
for reporting is as nitrogen (NH3-N). Most Hach colorimeters and spectrophotometers have the option to convert the test
