A NEW METHOD FOR THE DETERMINATION OF VARIOUS FIBRES IN MIXTURES, WITH SPECIAL REFERENCE TO THE DETERMINATION OF LANITAL IN WOOL-LANITAL MIXTURES

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Abstract
The method of Da Schio (1) for the determination of lanital in lanital-wool mixtures has been tried and found to be unreliable. A new and satisfactory method has been developed. This method makes use of the difference in the specific gravities of wool and lanital to separate the fibres by means of a liquid of intermediate specific gravity. The Herzog-Skinkle method has been found to give results that are a little high. The method devised by the author is also applicable to wool-cotton and wool-staple rayon mixtures. Results of tests carried out on various mixtures and by various methods are given.