RADIOCHROMIC FILM DOSIMETERS. A THIN PIECE OF CARD (PAPER) APPROX 1 X 3CM WITH 1 X 1CM PIECE OF B3 FILM PLACED ON THE END. THE B3 FILM IS COMPOSED OF PARAROSANILINE CYANIDE (DYE) DISSOLVED IN POLYVINYL BUTYRAL (PVB). THE FILM IS SENSITIZED. THE CARD AND THE FILM ARE PRINTED WITH A BARCODE AND ARE SELF ADHESVE. THE FILM DOSIMETER IS PLACED ON THE EXTERIOR OF THE OBJECT TO BE IRRADIATED/STERILISED. THE B3 FILM REACTS AND CHANGES COLOUR WHEN EXPOSED TO IONISING RADIATION. ONCE EXPOSED, THE B3 FILM CHANGES COLOUR AND CAN BE MEASURED (USING A SPECTROPHOTOMETER – NOT SUBJECT OF THE APPLICATION) TO INDICATE THE LEVEL THE OBJECT HAS BEEN EXPOSED TO. IT IS PACKED IN SEALED MULTIPACKS.

GENERAL INTERPRETATIVE RULES: 1 AND 6 THE HARMONISED SYSTEM EXPLANATORY NOTES TO 9030; ESPECIALLY NOTE (A) THE TEXT OF CODES 9030, 9030 10, 9030 10 00;