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FIBERS (TEXTILE) 



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Fig. la. Wool fibers (from top down): ASTM Fig. lb. Wool fibers (from top down): ASTM 



40, cross section, 450X. ASTM 56, longitudinal, 56, KMV reaction, llOX. AUworden reaction, 



llOX. ASTM 56, cross section, llOX. ASTM 58, 450X. Damaged by heat, llOX. Re-used wool, 



longitudinal, llOX. 225X. 



347 



