Deletion of Demal

Comment: into Molar concentration or into Mole_(unit)#Related units. A simple  style search shows other sources discussing this unit. I added three reliable sources and expanded the article beyond a dictionary definition. The sources don't discuss the unit in enough depth to pass notability thresholds, but there is enough verifiable material for a short section on this minor but interesting story in the history of conductivity measurement. Indeed, you can still buy demal-quantified calibration products.http://www.hach.com/kcl-0-1d-conductivity-standard-500-ml-0-1-demal-kcl-12-85-ms-cm-at-25-c-radiometer-analytical/product?id=7640532123 As a unit of concentration, it makes more sense to merge it into Molar concentration, but I'd be fine with it going into Mole_(unit)#Related units; the important thing is to preserve verifiable material per our policy 
Stance: merge
Cited policy: Wikipedia:Articles for deletion (WP:BEFORE||WP:PRESERVE)