A WORKMAN who almost died after drinking an industrial solvent sold to him as a bottle of Lucozade Light may have been the victim of a badly organised canteen which mixed up the solvent with legitimate drinks. The solvent, identified by the Government Laboratory as a mixture of chloroform and dichloro-methane - used in paint strippers and de-greasers - left lift maintenance worker Chu Cheuk-fan, 52, unconscious after he took a few sips. One theory being worked on by the police is that the bottle, which was full of the solvent, may have become mixed up with other legitimate bottles of Lucozade Light in the Tsuen Wan canteen from which the worker bought the drink. Although foul play has not been ruled out, police said the Lucozade bottle may have been used by someone to store solvent as they went about their work in the industrial units served by the canteen. It is believed the bottle may then have been left in the canteen and become mixed up with other bottles which were stored on the floor and in other random stacks. ''The canteen was very badly organised with bottles all over the floor. It is possible that a bottle being used for something else could have ended up with the real ones and then been sold as a drink,'' said District Crime Squad III Senior Inspector Tsang Chung-chim. A unit by unit inquiry involving 15 police officers has started to try to trace the possible source of the solvent. ''We have taken statements from the victim's family and have ruled out the possibility that this was a suicide attempt. Foul play is still a possibility but this could well have been an accident; until we know that for certain our investigations will continue, '' Mr Tsang said. Mr Chu was taken to the Yan Chai Hospital and his condition has improved from ''ill'' on Monday to satisfactory. A spokesman for Smithkline Beecham, the parent company of Lucozade, said the Government Laboratory report satisfied the firm that the incident had nothing to do with its product. Victor Pun, the sales manager, said: ''Neither of the substances identified are used in our bottling process or anywhere else with the Singapore plant where this product comes from.''