What is ISO 4946- Determination of copper- 2,2'-Biquinoline spectrophotometric method about?
ISO 4946 is a safety standard on steel and cast iron.
ISO 4946 specifies a spectrophotometric method for the determination of copper in steel and cast iron by 2,2’-biquinoline.
Note: The method is applicable to the determination of copper mass fraction in the range of 0,02 % and 5 %.
Who is ISO 4946- Determination of copper- 2,2'-Biquinoline spectrophotometric method for?
ISO 4946 on the determination of copper is relevant to:
- Manufacturers of steel and cast iron
- Chemical engineers
- Manufacturers of spectrophotometer
- Testing authorities
Why should you use ISO 4946- Determination of copper- 2,2'-Biquinoline spectrophotometric method?
ISO 4946 is about determining copper from steel and cast iron by 2,2'-Biquinoline spectrophotometric method.
ISO 4946 assists with the test in which we dissolve 0,60 g of 2,2’-biquinoline (cuproine, 2,2’-diquinolyl) in dimethylformamide (4.6), which is then diluted to 1 l with the same dimethylformamide and is mixed. This solution is kept in a dark-coloured glass flask and protected from light. The test portion is weighed, to the nearest 0,001 g, approximately 0,5 g of the test sample. A planned trial of this method was carried out by six laboratories, at five levels of copper, each laboratory making three to five determinations at each level.
Overall, ISO 4946 is useful as it provides guidance in determining copper from steel and cast iron by the 2,2'-Biquinoline spectrophotometric method which can be helpful for your business.
What’s changed since the last update?
BS EN ISO 4946:2016 supersedes BS 6200-3.12.2:1985 which is withdrawn.
BS EN ISO 4946:2016 replaces the first edition (ISO 4946:1984), which has been technically revised to include the following changes:
- Correction of the specification of plotting the calibration graphs in 7.4.3
- Editorial revision of some items in accordance with the updated ISO/IEC Directives, Part 2