This Standard specifies seven qualitative test methods, namely, combustion test method, microscopic observation method, chemical solution method, staining test method, chlamydospore and nitrogenous color reaction test method, melting point test method, and infrared absorption spectrum test method.
This Standard is applicable to the qualitative identification of Lyocell fiber, bamboo pulp fiber, chitin fibre, composite fibre of soybean protein / polyvinyl alcohol, composite fibre of milk protein, polyactic acid fibre, poly (trimethylene terephthalate) fiber.