1.17059
COD Test, photometric
photometric, 50-3000 mg/L (COD), Spectroquant®
About This Item
Recommended Products
Product Name
COD Cell Test for seawater / high chloride contents, photometric, 50-3000 mg/L (COD), Spectroquant®
product line
Spectroquant®
Quality Level
usage
sufficient for 25 tests
analyte functional class(es)
chemical oxygen demand (COD)
measuring range
50-3000 mg/L (COD)
technique(s)
photometry: suitable
compatibility
for use with Spectroquant® Move 100
for use with Spectroquant® Nova 60 A
for use with Spectroquant® Prove 100
for use with Spectroquant® Prove 300
for use with Spectroquant® Prove 600
detection method
photometric (Oxidation with chromosulfuric acid, determination as chromium(III))
storage temp.
15-25°C
1 of 4
This Item | NIST193 | P8394 | P6083 |
|---|---|---|---|
| solubility 320 g/L | solubility - | solubility - | solubility H2O: 1 M at 20 °C, clear, colorless |
| assay 99.995% | assay - | assay ≥99.0% | assay ≥99.0% |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| grade for inorganic trace analysis | grade certified reference material | grade - | grade - |
| pH 5.0-7.5 (20 °C, 50 g/L in H2O) | pH - | pH 7 | pH - |
General description
The chloride content of the water sample is depleted by means of sulfuric acid and an HCl absorber. The water sample is subsequently oxidized with a hot sulfuric solution of potassium dichromate, with silver sulfate as the catalyst. Residual chloride is masked with mercury sulfate. The concentration of green Cr3+ ions is then determined photometrically.
The chloride depletion method corresponds to DIN 38409-41-2.
The method corresponds to DIN ISO 15705 and is analogous to EPA 410.4, APHA 5220 D, and ASTM D1252-06 B.
The Spectroquant®Cell Tests come with prefilled 16 mm round cells and all the required reagents to perform the analysis according to the instruction leaflet provided.
All Spectroquant® Cell and Reagent Test Kits are equipped with the unique Live ID (2D barcode) , which allows seamless method recognition and contains essential information such as lot number, expiry date, and automatic calibration updates.
Legal Information
Disclaimer
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Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Met. Corr. 1 - Muta. 1B - Repr. 1B - Skin Corr. 1A - STOT RE 2
target_organs
Kidney
Storage Class
6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Articles
Preparation of a standard solution for COD/chloride
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