BS 3210 1960 Edition, February 9, 1960
Methods for the analysis of water-soluble coal-tar dyes permitted for use in foods
Includes all amendments and changes through Amendment 1, February 9, 1960
Additional Comments: W/D NO S/S
Published By:British Standards Institution (BSI)
Matter volatile at 135°C, matter insoluble in water, di-isopropyl ether extract , subsidiary dyes, chloride, sulphate, dye content, copper, arsenic and lead. Limit test for heavy metals (as sulphides). Details of procedure varied according to dye being analysed; for such variations reference to British Standard for the individual dyes is necessary.