ISO 4946:2016 specifies a spectrophotometric method for the determination of copper in steel and cast iron by 2,2'-biquinoline. The method is applicable to the determination of copper mass fraction in the range of 0,02 % and 5 %.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Procedure
7.1 Test portion
7.2 Blank test
7.3 Determination
7.4 Establishment of the calibration graph
8 Expression of results
9 Precision
9.1 General
9.2 Repeatability
9.3 Reproducibility
10 Test report
Annex A Additional information on the international interlaboratory test (informative)
Annex B Graphical representation of precision data (informative)
ISO 1042:1998 Laboratory glassware -- One-mark volumetric flasks
ISO 14284:1996 Steel and iron -- Sampling and preparation of samples for the determination of chemical composition
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 1042:1998 Laboratory glassware -- One-mark volumetric flasks
ISO 14284:1996 Steel and iron -- Sampling and preparation of samples for the determination of chemical composition
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 648:2008 Laboratory glassware -- Single-volume pipettes