RT Journal Article SR Electronic T1 Occupational asthma due to a widely used soft solder flux not containing colophony JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 238 OP 240 VO 10 IS 1 A1 Convery, RP A1 Ward, RJ A1 Hendrick, DJ YR 1997 UL http://erj.ersjournals.com/content/10/1/238.abstract AB A 19 year old woman presented with symptoms suggestive of occupational asthma. The causative agent was thought to be a soft solder flux, which did not contain colophony. The diagnosis was established by specific inhalation challenge tests, which demonstrated both late asthmatic reactions and short-lived increases in airway responsiveness.