1C210'Fibrous or filamentary materials' or prepregs, other than those specified in 1C010.a., .b. or .e., as follows:

a. Carbon or aramid 'fibrous or filamentary materials' having either of the following characteristics:
1. A "specific modulus" of 12,7 × 106 m or greater; or
2. A "specific tensile strength" of 23,5 × 104 m or greater;
Note:
1C210.a. does not control aramid 'fibrous or filamentary materials' having 0,25 % by weight or more of an ester based fibre surface modifier;
b. Glass 'fibrous or filamentary materials' having both of the following characteristics:
1. A "specific modulus" of 3,18 × 106 m or greater; and
2. A "specific tensile strength" of 7,62 × 104 m or greater;
c. Thermoset resin impregnated continuous "yarns", "rovings", "tows" or "tapes" with a width of 15 mm or less (prepregs), made from carbon or glass 'fibrous or filamentary materials' specified in 1C210.a. or .b.
Technical Note:
The resin forms the matrix of the composite.
Note:
In 1C210, 'fibrous or filamentary materials' is restricted to continuous "monofilaments", "yarns", "rovings", "tows" or "tapes".