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Abstract
A method is presented for reliably estimating the degree of damage in carbonized wools, this being based on the tensile testing of flat, non-combed fibre bundles. The technique applies to fibres so handled during treatment in the laboratory that their parallel state in the greasy condition is not greatly affected. A recommended test procedure is given, and it is concluded that the work done in rupturing the test specimens provides a more accurate estimate of the damage than tenacity.