MOUNTED OPTICAL FILTER.THE FILTER SELECTIVELY TRANSMITS LIGHT IN A PARTICULR RANGE OF WAVELENGTHS, THAT IS, COLOUR,WHILE BLOCKING THE REMAINDER. THE SIMPLE ALL GLASS STRUCTURE COMBINED WITH ION-BEAM-SPUTTERED HARD GLASS COATING MEANS IT IS VIRTUALLY IMPERVIOUS TO HUMIDITY AND TEMPERATURE INDUCED DEGRADATION.EACH FILTER HAS A STANDARD THICKNESS OF EITHER 3.5MM OR 5MM AND IS DEFINED BY THE FILTER'S ALUMINIUM HOUSING.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING: GENERAL INTERPRETATIVE RULES (GIRS) GIR 1 HAS BEEN USED TO CLASSIFY THE PRODUCT BY THE TERMS OF HEADING 9002 - LENSES, PRISMS, MIRRORS AND OTHER OPTICAL ELEMENTS OF ANY MATERIAL, MOUNTED, BEING PARTS OR FITTINGS FOR INSTRUMENTS OR APPARATUS, OTHER THAN SUCH ELEMENTS OF GLASS NOT OPTICALLY WORKED. GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 900220 - FILTERS. TARIC CODE 9002200090 - OTHER THAN ELSWHERE SPECIFIED WITHIN THIS SUBHEADING. ALSO CLASSIFIED IN ACCORDANCE WITH: HARMONISED SYSTEM EXPLANTORY NOTES (HSENS) HSENS TO HEADING 9002 - NOTE (2).