Just how much lead was in that toy blood pressure cuff Mattel were so reluctant to recall back in February? The one they said “me federal regulations and international consumer product safety standards?” Well, a reader’s scientist friend working in lab tested it on the equipment there. According to his results, the amount of lead in the paint was 4-5% lead by weight. “For reference,” he writes, “U.S. EPA HUD guidelines set the action limit for paint at 0.5% lead by weight. Any level over 0.5% is considered to be contaminated…Lead paint used on houses 50 years ago had lead content of 2-15%.”