Does it test for sulphur?

No this kit does not test for Sulfur Usually you can not do a instant test for Sulfur. Other names like Hydrogen Sulfide is a gas that can be detected by its rotten-egg odor. The test for Hydrogen Sulfide does not require a test strip, to determine if you have a problem just follow the next two (2) steps: 1. Turn on the cold water and immediately check for the rotten-egg odor over a two minute period. 2. Perform the same check on the hot water. Results: If you smell the rotten-egg odor on both the hot and cold water, you probably have a Hydrogen Sulfide problem, if the odor is only on either the hot or cold water, and not both, then more than likely Hydrogen Sulfide is not a problem