If you know somebody who is allergic to wool - and they are willing - they could hold it and see if it triggers a reaction. Otherwise, microscope. You can buy pretty good microscopes these days, including some that plug into a computer via USB so you can capture images. Wool is scaly like hair, synthetic fibres are smooth. Rebecca
Message: 1 Date: Thu, 18 Aug 2016 16:46:35 +1000 From: Elizabeth Jones <elizabethrjones2...@gmail.com> Hi everyone, This is not directly historical but I knew this list would be my best chance of an answer. My uncle sent my 2 month old son a gift of a hand knitted cardigan which he bought from a charity stall. without a label I have no way to know if they have used wool or acrylic yarn. I know I can test using bleach or a burn test but I don't want to damage the garment is there a non destructive test I can do on a finished garment? Thanks Elizabeth _______________________________________________ h-costume mailing list h-costume@mail.indra.com http://mail.indra.com/mailman/listinfo/h-costume