1 Scope
This Part of GB/T 223 specifies a method for the determination of the iron content using an o-Phenanthroline spectrophotometric method.
This Part is applicable to determination of iron content between 0.10 % (mass fraction) and 1.00 % (mass fraction) in high temperature alloy and precision alloy.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this Part of GB/T 223. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 6379.1 Accuracy (Trueness and Precision) of Measurement Methods and Results - Part 1: General Principles and Definitions
GB/T 6379.2 Accuracy (Trueness and Precision) of Measurement Methods and Results-Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method
GB/T 20066 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition
