GB/T 20125-2006 (English Version) PDF

Standard No.: GB/T 20125-2006
Language: Chinese, Available in English version
Release Date: 2006
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 20125-2006

Scope: This part specifies the method for the determination of silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, vanadium, cobalt, titanium and aluminum by inductively coupled plasma emission spectrometry. This method is suitable for the determination of silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, vanadium, cobalt, titanium and aluminum in carbon steel and low alloy steel with iron mass fraction greater than 92%. Table 1. This method determines silicon, titanium and aluminum as acid-soluble silicon, acid-soluble titanium and acid-soluble aluminum. This standard does not apply when only one of the components in the steel exceeds the upper limit of the content range in Table 1. This standard also does not apply to steels with carbon and sulfur mass fractions greater than 1.0%, and tungsten and niobium mass fractions greater than 0.10%. This standard specifies two alternative methods to determine the content of elements in the test solution, one using an internal standard and the other without using an internal standard.

GB/T 20125-2006 Referenced Document

GB/T 20066-2006 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
GB/T 6379 Precision of test methods--Determination of repeatability and reproducibility for a standard test method by interlaboratory tests

2006 GB/T 20125-2006 Low-alloy steel.Determination of multi-element contents.Inductively coupled plasma atomic emission spectrometric method