1.1 This test method gives an approximate measurement of the free phenols contained in molded parts based on phenoplasts and consis s of determining the quantity of iodine having reacted with an aqueous extract, carried out hot on a molded part reduced to powdery state. 1.2 The standard does not claim absolute determination of exis ing free phenols.
NBN 729-1967 history
1967NBN 729-1967 Determination of free phenol in phenolic plastic castings