Allergy to methyltetrahydrophthalic anhydride in epoxy resin workers
One hundred and forty four current and 26 former workers in a plant producing barrels for rocket guns from an epoxy resin containing methyltetrahydrophthalic anhydride (MTHPA; time weighted average air concentration up to 150 uglm') were studied. They showed higher frequencies of work related symptoms from the eyes (31 v 0%; p < 0-001), nose (53 v 9%; p < 0-001), pharynx (26 v 6%; p < 0-01), and a