In contact with liquid water these L.S.T. and L.S.A.T. are cellulose films developed in the u.s. which are specially coated to reduce the permeability of the films to water vapour as compared with the P.T. film. Their permeability to air is hardlyanbsp;...
|Title||:||The Hop Industry|
|Author||:||Hop Industry Productivity Team|
|Publisher||:||London : Anglo-American Council on Productivity - 1951|