This method is used for the determination of volatile matter, percent water and density of paints, varnishes, lacquers or related surface coatings. For waterborne (greater than 5 percent water by weight in volatile fraction) coatings only, percent water is determined using the Karl Fischer method. Various ASTM methods are used to determine the other parameters.
Volatile content is determined following ASTM D2369. An aliquot of the sample is added to a aluminum foil dish and the weight is determined. The sample is put into an oven for 60 minutes at 110
°C +/- 5
°C. The sample is weighed after removal from the oven to determine the volatile content.
Water content is determined using either ASTM D3792 or D4017.
Density is determined following ASTM D11475.
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| Hold Times, Preservatives, Preps, Collection, Analytical & Documentation | |
|---|---|
| Holding Time: | None specified in the method. |
| Preservatives: | None specified in the method. |
| Required Preps: | 125mL glass bottle |
| Collection Method: | Grab sampling |
| Analytical Methodology: | Various |
| Documentation: | 
24
|
| Analyte | Formula | CAS Number | Detection Limit | |
|---|---|---|---|---|
| Water | H2O |
7732-18-5 |
||
| Density | ||||
| Volatile Organic Compounds | ||||
* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.