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This part of this European Standard establishes a method of designation for roving made from continuous filament textile glass strands, which may be used as the basis for specifications. This designation system is for roving used for the reinforcement of plastics and hydraulic matrices, and the manufacture of woven materials. It does not apply to roving made from staple fibres. It is not intended to imply that roving having the same designation give necessarily the same performance. Nor is the designation system intended to cover all the characteristics of roving. This part of this European Standard does not give engineering data, performance data or data which may be required to specify roving for a particular application or method of processing. If such additional properties are required they shall be determined in accordance with the test methods specified in Part 2 of EN 14020.