This European Standard specifies a flame atomic absorption spectrometric method for the determination of titanium in steels and cast irons. The method is applicable to non-alloyed and alloyed steels and cast irons with titanium contents of 0,01 % to 1,0 % (m\/m).<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 5<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | 1 Scope 2 Normative references 3 Principle 4 Reagents <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 5 Apparatus <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 6 Sampling 7 Procedure 7.1 Test portion 7.2 Blank test 7.3 Preparation of the test solution 7.3.1 Nitric perchloric dissolution <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 7.3.2 Chloro-nitric dissolution with treatment of the residue 7.4 Preparation of the calibration solutions <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Table 1 \u2014 Calibration solutions 7.5 Adjustment of atomic absorption spectrometer 7.6 Spectrometric measurements of the calibration solutions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 7.7 Calibration curve 7.8 Determination 7.8.1 Preliminary spectrometric measurement 7.8.2 Spectrometric measurements 8 Expression of results 9 Test report <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Annex A (informative) Precision data A.1 General Table A.1 \u2014 Results of precision tests \u2014 Dissolution 7.3.2 tested on eight steel samples <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Table A.2 \u2014 Results of precision tests \u2014 Dissolution 7.3.1 tested on four cast iron samples Table A.3 \u2014 Results of precision tests \u2014 Dissolution 7.3.2 tested on four cast iron samples <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Figure A.1 \u2014 Logarithmic relationships between titanium content, WTi, and repeatability (r) and reproducibility (Rw and R) <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Table A.4 \u2014 Predicted values for r, Rw and R A.2 Information on repeatability and reproducibilities A.2.1 Repeatability, r A.2.2 Within-laboratory reproducibility, Rw A.2.3 Reproducibility, R <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Annex B (normative) Procedures for the determination of instrumental criteria B.1 Determination of minimum precision B.2 Determination of limit of detection B.3 Linearity of calibration <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | B.4 Determination of characteristic concentration, cTi,cc <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Chemical analysis of ferrous materials. Determination of titanium in steels and cast irons. Flame atomic absorption spectrometric method<\/b><\/p>\n |