LONDON, 2015-5-22 — /EPR Retail News/ — Sainsbury’s today announces that, from Halloween 2015, all children’s dress-up outfits will be tested to the British nightwear flammability safety standard, the toughest standard that currently exists. Current regulation requires dress-up to be tested to European toy standards1 From Halloween 2015, all children’s dress-up sold by Sainsbury’s will also…