COPOLYMER OF STYRENE WITH MALEIC ANHYDRIDE, EITHER PARTIALLY ESTERIFIED OR COMPLETELY CHEMICALLY MODIFIED, OF AN AVERAGE MOLECULAR WEIGHT (MN) OF NOT MORE THAN 4500, IN FLAKE OR POWDER FORM. YELLOW OR OFF-WHITE IN COLOUR.

GENERAL INTERPRETATIVE RULES 1 & 6 TEXT TO CODES 3911 & 3911 90 99 60 HARMONISED SYSTEM EXPLANTORY NOTES TO HEADNG 3911 STATE LABORATORY ADVICE REF: R12A0253 & R12A0254