(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...
raw cotton witnessed a sharp 29.43 percent year-on- year decline and were valued at $474.155 million. in the first three quarters of 2013- 14, pakistan imported 159,159 tons ofsyntheticfibres valued at $310.655 million, while synthetic & artificial silk yarn imports were 177,164 tons valued at $453.618...