Keterangan
Highlights
ST-COD sealed tubes ready for use Suppression of chloride interference up to 1000 mg/ l ( for not mercury-free tube tests only)
3 ranges:
Low range: 0 � 150 mg/ l, meets ISO 15705: 2002
Middle range: 0 � 1500 mg/ l, meets ISO 15705: 2002
High range: 0 � 15000 mg/ l
Description
AL250 COD Vario
With a measuring range from 0 to 15, 000 mg/ l O2, the AQUALYTIC AL250COD VARIO photometer is suitable for waste water testing.
Two LEDs light sources with long-term stability ( » 1 = 605 nm; » 2 = 430 nm, according to ISO 15705: 2002) , a waterproof sample chamber, a large digital display, and the user-friendly keypad ensure maximum operating reliability and convenience.
The AQUALYTIC AL250COD VARIO test setup allows highly sensitive and precise water testing with minimum effort. It measures the ST-COD concentration by photometric detection employing a linear relationship between absorbance and concentration.
After adding the sample to a AQUALYTIC COD VARIO tube test ( LR, MR according to ISO 15705: 2002) , it is heated in the reactor and then analysed in the AL250COD vario photometer.
The COD-Setup comprises the AL250COD VARIO photometer, 25 tube tests for each of the two lower measuring ranges, a reactor for sample digestion, and a vial stand.
COD-Set-Up AL250 COD VARIO
complete with photometer, reactor AL125, 2 sets of 25 tubes each 0-150 mg/ l and 0-1500 mg/ l and tube stand
Waste water parameter COD
The chemical oxygen demand, ST-COD value, of water as determined by this dichromate method can be considered as an estimate of the theoretical oxygen demand, i.e. the amount of oxygen consumed in total chemical oxidation of the organic constituents present in the water.
Ranges
0 � 150 mg/ l O2 ± 3, 5% * )
0 � 1500 mg/ l O2 ± 3, 5% * )
0 � 15000 mg/ l O2 ± 3, 5% * )
Prioritas Indotrade