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YS/T 904.1-2013: Methods for chemical analysis of iron-chromium-aluminum fiber. Part 1: Determination of nitrogen content. Inert gas fusion thermal conductivity method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 904.1-2013 | English | 159 |
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Methods for chemical analysis of iron-chromium-aluminum fiber. Part 1: Determination of nitrogen content. Inert gas fusion thermal conductivity method
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YS/T 904.1-2013
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Basic data | Standard ID | YS/T 904.1-2013 (YS/T904.1-2013) | | Description (Translated English) | Methods for chemical analysis of iron-chromium-aluminum fiber. Part 1: Determination of nitrogen content. Inert gas fusion thermal conductivity method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H16 | | Classification of International Standard | 77.160 | | Word Count Estimation | 6,653 | | Regulation (derived from) | Ministry of Industry and Information Technology Bulletin No. 52, 2013; industry standard for filing Notice No. 1 of 2014 (No. 169 overall) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the method for the determination of Fe-Cr-Al filaments of nitrogen. This standard applies to iron-chromium-aluminum filaments in nitrogen content, measuring range: 0. 0005% ~ 0. 040% o | YS/T 904.1-2013: Methods for chemical analysis of iron-chromium-aluminum fiber. Part 1: Determination of nitrogen content. Inert gas fusion thermal conductivity method
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Methods for chemical analysis of iron-chromium-aluminum fiber Part 1. Determination of nitrogen content Inert gas fusion thermal conductivity method
ICS 77.160
H16
People's Republic of China Nonferrous Metals Industry Standard
Iron chrome aluminum fiber filament chemical analysis
Part 1. Determination of nitrogen content
The inert gas fusion thermal conductivity method
Part 1. Determinationofnitrogencontent-
Issued on. 2013-10-17
2014-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 904 "filament chemical analysis of iron chrome aluminum" is divided into five sections.
--- Part 1. Determination of nitrogen inert gas fusion thermal conductivity method;
--- Part 2. chromium, aluminum content - Inductively coupled plasma atomic emission spectrometry;
--- Part 3. silicon, manganese, titanium, copper, lanthanum, cerium content - Inductively coupled plasma atomic emission spectrometry;
--- Part 4. Determination of phosphorus content - Molybdenum blue spectrophotometric method;
--- Part 5. carbon, sulfur content was measured high-frequency combustion infrared absorption method.
This section YS/T Part 1 904.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is drafted. Western Metal Materials Co., Ltd., Guangzhou Nonferrous Metal Research Institute, Beijing Nonferrous Metal Research Institute.
Drafters of this section. a new layer of stone, red Yang Jun, Zhai through Germany, Liu Jianbin, Han Li, high Xiaoli, Zhuang Yichun, Zhang Jin, Xiong Xiaoyan, Mr Cho.
Iron chrome aluminum fiber filament chemical analysis
Part 1. Determination of nitrogen content
The inert gas fusion thermal conductivity method
1 Scope
YS/T of the provisions of section 904 of the determination of iron chrome aluminum fiber yarn nitrogen content.
This section applies to iron chrome aluminum filaments in the determination of nitrogen, the measurement range. 0.0005% to 0.040%.
2 Method summary
Samples in an inert atmosphere (helium) in the molten sample of nitrogen in the form of N2 precipitated by a thermal conductivity detector to detect nitrogen pool.
3 Reagents and materials
Unless otherwise indicated, this part of the reagents used were of analytical grade reagents.
3.1 ether.
3.2 graphite crucible.
3.3 Nickel bag [w (N) ≤0.00008%].
Helium 3.4 (volume fraction ≥99.995%).
3.5 Standard sample. the sample selection and composition, similar to the nitrogen content of standard samples or other applicable standard sample.
4 Instrument
Nitrogen analyzer. Instrument sensitivity is not less than 0.00001%.
5 Sample
5.1 Samples cut from the approximately 0.10g sample was washed with diethyl ether (3.1), allow to dry.
5.2 sample can not be contaminated during operation, with special forceps.
Step 6 Analysis
6.1 Warm up
To fully preheated before instrumental analysis, so that the indicators of the instrument reaches the set value.
6.2 Instrument Leak
The use of the instrument or other auxiliary equipment leak detection program to determine the instrument without leakage phenomenon.
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