Methods of test for phosphoric acid (orthophosphoric acid) for industrial use-Determination of calcium content (flame atomic absorption method)
工业用磷酸(正磷酸)的试验方法 钙含量的测定(火焰原子吸收法)
Determination of calcium content down to 10 mg/kg by photometric measurement of absorption of the 422.7 line emitted by a hollow cathode calcium lamp. Also for use in the food industry.Cross References:BS 4258:Part 1BS 4258:Part 2BS 4258:Part 3BS 4258:Part 4BS 4258:Part 5BS 4258:Part 6BS 4258:Part 7BS 4258:Part 9BS 4258:Part 10BS 4258:Part 11ISO/R 847