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(i) outline technique measurements are taken by drawing a known volume of air through a membrane filter. this filter is then made transparent, and the number offibres fitting a standard definition of size and shape which are in the deposit are counted using a phase-contrast microscope. the mean fibre...
hemp fibres: a complex three-dimensional structure, very good moisture absorption characteristics, anti-bacterial properties, sound uv protection and allowing textiles to dry fast. cotton needs a lot of water, soil salinity and the use of pesticides, all of which cause environmental problems and chinese...