Tube test COD Low Range (LR 150) / High Range (HR 1500) GN
The generic COD tube tests COD LR 150 GN and COD HR 1500 GN are designed by MACHEREY-NAGEL for the use in the DRB200 reactor and the photometers from HACH* (following the instructions from Method 8000) as a replacement of the test kits COD Digestion Vials Low Range and COD Digestion Vials High Range. For evaluation, the user has to select Method number 430 for COD LR 150 GN or method number 435 for COD HR 1500 GN.
Tube test for the determination of COD. Precise rapid tests for all kind of water and waste water samples according to ISO 15705. Time-saving and reliable analysis for the use in third-party photometers.
Platform
Generic tube tests
Parameter
COD
Measuring range
COD – 3–150 mg/L O₂
COD – 20–1500 mg/L O₂
Evaluable on
HACH* photometer
Based on norm
In accordance with DIN ISO 15705 – H45, analogous to EPA 410.4,
Method
COD – Potassium dichromate
NanOx N
No
NanOx Metal
No
Crack-Set
No
Sea water analysis
No
Remark
*HACH is a registered trademark of HACH Company, Loveland, Colorado and HACH Lange GmbH, Düsseldorf, which are not affiliated with MACHEREY-NAGEL GmbH & Co. KG. The products COD LR 150 GN and COD HR 1500 GN are neither endorsed, nor sponsored by or affiliated with the trademark owners.
Shelf life (from production)
60 Month(s)
Storage temperature
15–25 °C
Hazardous material
Yes
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Measuring performance of Generic COD tube tests
Introduction The generic COD tube tests COD LR 150 GN and COD HR 1500 GN are designed by MACHEREY-NAGEL for the use in the DRB200 reactor and the photometers from HACH* (following the instructions from Method 8000) as a replacement of the test kits COD Digestion Vials Low Range and COD Digestion Vials High Range. For validation, comparative measurements of real samples using MACHEREY-NAGEL’s test kits and the original test kits from HACH* were carried out.
Results In the low range, the samples were each measured twice with COD LR 150 GN (REF 985701) and HACH* COD Digestion Vials Low Range (Art. 2125825 / 2125815). In the high range, the samples were each measured twice with COD HR 1500 GN (REF 985702) and HACH* COD Digestion Vials High Range (Art. 2125925 / 2125915). The protocol for method 8000 from HACH* was strictly followed for each measurement. The results are shown in the following figures:
Conclusion Eight different real samples for each range were measured and the results were compared. Strictly following the protocol for the HACH* method 8000 the test kits from MACHEREY-NAGEL show a variation between test results of not more than 12 mg/L O2 in the low range and 50 mg/L in the high range and thus are comparable for many applications.
*”HACH” is a registered trademark of HACH Company, Loveland, Colorado and HACH Lange GmbH, Düsseldorf, which are not affiliated with MACHEREY-NAGEL GmbH & Co. KG. The products COD LR 150 GN and COD HR 1500 GN are neither endorsed, nor sponsored by or affiliated with the trademark owners.
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