1.1 This test method covers the determination of the water vapor content of gaseous fuels by measurement of the dew-point temperature and the calculation therefrom of the water vapor content.
3.1 Generally, contracts governing the pipeline transmission of natural gas contain specifications limiting the maximum concentration of water vapor allowed. Excess water vapor can cause corrosive conditions, degrading pipelines and equipment. It can also condense and freeze or form methane hydrates causing blockages. Water–vapor content also affects the heating value of natural gas, thus influencing the quality of the gas. This test method permits the determination of water content of natural gas.
| SDO | ASTM: ASTM International |
| Document Number | D1142 |
| Publication Date | Nov. 1, 2012 |
| Language | en - English |
| Page Count | 11 |
| Revision Level | 95(2012) |
| Supercedes | |
| Committee | D03.05 |