YS/T 953.9-2014Methods for chemical analysis of fire smelting nickel substrate material. Part 9: Determination of carbon and sulfur contents. Infrared absorption method after high frequency combustion (English PDF)

Foreword

YS/T 953 "Methods for chemical analysis of fire smelting nickel substrate

material" is divided into 11 parts:

- Part 1: Determination of nickel content - Dimethylglyoxime

spectrophotometric method and dimethylglyoxime gravimetric method;

- Part 2: Determination of silicon content - Molybdosilicate blue

spectrophotometric method and perchloric acid dehydration gravimetric

method;

- Part 3: Determination of phosphorus content - Bismuth phosphomolybdate

blue spectrophotometric method;

- Part 4: Determination of chrome content - Ammonium ferrous sulfate

titration method;

- Part 5: Determination of manganese content - Potassium periodate

spectrophotometric method;

- Part 6: Determination of cobalt content - 5-CI-PADAB spectrophotometric

method and flame atomic absorption spectrometric method;

- Part 7: Determination of copper content - BCO spectrophotometric method

and flame atomic absorption spectrometric method;

- Part 8: Determination of iron content - Titanium trichloride reduction-

potassium dichromate titrimetric method;

- Part 9: Determination of carbon and sulfur contents - Infrared absorption

method after high frequency combustion;

- Part 10: Determination of nickel, chromium, manganese, cobalt, copper and

phosphorus contents - Inductively coupled plasma atomic emission

spectrometric method;

- Part 11: Determination of Lead, Arsenic, Cadmium and Mercury contents -

Inductively coupled plasma-mass spectrometric method.

This Part is Part 9 of YS/T 953.

This Part is drafted in accordance with the rules given in GB/T 1.1-2009.

This Part shall be under the jurisdiction of National Technical Committee 243

on Nonferrous Metals of Standardization Administration of China (SAC/TC 243).

Methods for chemical analysis of fire smelting nickel

substrate material - Part 9: Determination of carbon

and sulfur contents - Infrared absorption method after

high frequency combustion

1 Scope

This Part of YS/T 953 specifies the infrared absorption method after high

frequency combustion for the determination of carbon and sulfur contents in the

fire smelting nickel substrate material.

This Part applies to the determination of carbon and sulfur contents in the fire

smelting nickel substrate material. The determination range is 0.010%~5.50%

for carbon, 0.0050%~0.60% for sulfur.

2 Normative references

The following documents are indispensable for the application of this document.

For the dated references, only the editions with the dates indicated are

applicable to this document. For the undated references, the latest edition

(including all the amendments) are applicable to this document.

GB/T 20066 Steel and iron - Sampling and preparation of samples for the

determination of chemical composition

3 Method summary

The test portion and flux are burned at high temperature in the oxygen flow of

the high frequency induction furnace. The generated carbon dioxide and sulfur

dioxide are carried by oxygen to the infrared absorption cell; absorb infrared

light of a certain wavelength respectively. The absorbed energy is proportional

to the concentration. According to the change of energy received by the infrared

detector, measure the carbon and sulfur contents.

4 Reagents