Jam jar filled 3/4 with water, add soil to top, shake really well and allow to settle. May take a while ( a few days) depending upon your clay content.
The sand will settle first followed by silt and lastly the clay, then you can read the layers and the percentage split gives you the basic soil type.
Hope this is what you were looking for and not ph soil testers! ::) 'Though I think there is a 'homemade' way to do that aswell.