There are no current recommended health tests (by the KC) for the standard wire. Mini wires are tested for persistent pupillary membranes (PPM), affects the eyes.
Main issue with standard dachshunds of any coat are back problems as they are more frequent in standards than mini's, only way to know would be to ask the breeder and maybe the breed club as well as they would know of any issues in that line. Recently they have been breed with a chunkier look to them (more bone) and the instances of back problems has dropped.
For a good club to look for a wire through is the UK dachshunds club
http://www.dachshundclub.co.uk/They have puppy lists and contacts on there as well.
Emma