Cookies
We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
UOP 649-74
Total Oxygen in Organic Materials by Pyrolysis-Gas Chromatographic Technique
STANDARD published on 29.7.2002
The information about the standard:
Designation standards: UOP 649-74
Note: WITHDRAWN
Publication date standards: 29.7.2002
SKU: NS-574844
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: American technical standard
Category: Technical standards UOP
Preview of the standard UOP 649-74
| 1. Scope |
|
This method is suitable for the analysis of virtually all organic materials which decompose below 1000°C. This includes not only hydrocarbons, but also organic materials which contain nitrogen, sulfur, and/or halogens. Dissolved molecular oxygen, organic oxygen, and the oxygen of water, carbon dioxide and carbon monoxide are included in the total oxygen. The oxygen of certain metal oxides, such as ferric oxide (Fe2O3), is reducible but others, such as alumina (Al2O3), do not react and are not determinable by this method. Therefore metal oxides are an interference. The total oxygen content can be determined in the entire range from 5 ppm to several percent. Samples containing fluorine may yield high results because the fluorine attacks the quartz pyrolysis tube, but after the pyrolysis tube has developed a carbon "skin" the data indicate that fluoride does not constitute an interference at levels below 5% F. |
We recommend:
Technical standards updating
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
