(19)

(11)

EP 0 752 196 A1

(12)

(43) Date of publication: 08.01.1997 Bulletin 1997/02 (21) Application number: 95911435.0 (22) Date of filing: 20.03.1995

(51) International Patent Classification (IPC):  G01N 27/ 64( . ) H05B 41/ 16( . ) H05B 41/ 38( . ) G01N 27/ 66( . ) H05B 41/ 24( . ) (86) International application number: PCT/GB1995/000604 (87) International publication number: WO 1995/026119 (28.09.1995 Gazette 1995/41)

(84) Designated Contracting States: DE FR GB IT NL SE (30) Priority: 24.03.1994 GB 19940005829 (71) Applicant: THE SECRETARY OF STATE FOR DEFENCE Farnborough, Hampshire GU14 6TD (GB)	(72) Inventors: JONES, Christopher, David Salisbury Wiltshire SP4 0JQ (GB) GRIFFITHS, Richard, Frederick Environmental Techn. P.O.Box 88 Manchester M60 1QD (GB) (74) Representative: Skelton, Stephen Richard, et al  Formalities Section (Procurement Executive), D/IPR, Poplar 2, MOD Abbey Wood No. 19, P.O. Box 702 Bristol BS12 7DU Bristol BS12 7DU (GB)