Plastics - Phenol-formaldehyde mouldings - Determination of free phenols - Iodometric method (ISO 119:1977)
A semiquantitative method for the determination of the amount of free phenols in phenolic mouldings. Hot water extraction of free phenols from a powdered test portion, iodination of the water extract and backtitration of the excess of iodine with standard volumetric thiosulfate solution.
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