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SN/T 2079-2008: Method for analysis of stainless and alloy steels. X-ray fluorescence spectrometry
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2079-2008 | English | 169 |
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Method for analysis of stainless and alloy steels. X-ray fluorescence spectrometry
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SN/T 2079-2008
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Basic data | Standard ID | SN/T 2079-2008 (SN/T2079-2008) | | Description (Translated English) | Method for analysis of stainless and alloy steels. X-ray fluorescence spectrometry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | H11 | | Word Count Estimation | 6,653 | | Date of Issue | 2008-04-29 | | Date of Implementation | 2008-11-01 | | Regulation (derived from) | National-accreditation-Science [2012] 57 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the simultaneous determination of stainless steel and alloy element content in the 15 X-ray fluorescence spectroscopy methods. This standard applies to stainless steel or alloy steel Si, Mn mouth, such as the determination of 15 elements. | SN/T 2079-2008: Method for analysis of stainless and alloy steels. X-ray fluorescence spectrometry
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Method for analysis of stainless and alloy steels.X-ray fluorescence spectrometry
Exit inspection and quarantine industry standard book People's Republic of China
Stainless steel and alloy analysis
X- ray fluorescence spectrometry
Posted 2008-04-29
2008-11-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard by the People's Republic of China SZCIQ responsible for drafting.
The main drafters of this standard. LI Shu-hua, Zhangqing Bo, Liu Li, Liao Wenzhong, cool white, Liu.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Stainless steel and alloy analysis
X- ray fluorescence spectrometry
Warning --- X-ray fluorescence spectrometry using a human dangerous radioactive radiation, it must be observed when using the instrument Health Instrument
Safety instruction producers stated, and local regulations, and using the device must be on board before the safety training and regular safety checks.
1 Scope
This standard specifies the stainless steel and alloy steel by 15 elements in the X-ray fluorescence spectrometry method for the simultaneous determination.
This standard applies to stainless steel Determination of 15 elements or alloy of Si, Mn and so on, the scope of each element in Table 1.
Table 1 Scope of the elements%
Element measurement range (mass fraction)
Si 0.10 ~ 2.30
Mn 0.14 ~ 2.80
P 0.003 ~ 0.070
S 0.002 ~ 0.060
Cr 0.14 ~ 17.50
Ni 0.06 ~ 29.90
Cu 0.03 ~ 3.50
Mo 0.08 ~ 2.00
Element measurement range (mass fraction)
V 0.05 ~ 0.65
Ti 0.01 ~ 1.10
Co 0.03 ~ 0.30
Nb 0.02 ~ 1.20
Al 0.01 ~ 1.10
W 0.08 ~ 5.40
Zr 0.01 ~ 0.35
2 Method summary
Machining the surface smooth, uniform, clean sample by the higher energy X-ray beam of radiation, X- ray fluorescence, by measuring the respective elements
Characteristic lines strength analysis to determine the content of each element in the sample.
3 Reagents and materials
3.1 Detector Gas (P-10). 90% argon + 10% methane for gas-flow proportional counter.
3.2 Standard substance. Spectral stainless steel, alloy steel standard test block. Each element should be at least three reference materials, the content should be a certain room
Septum, and cover the measurement range of the analyte.
4 Instrument
4.1 wavelength dispersive X- ray fluorescence spectrometer. power ≥3kW.
4.2 vacuum high frequency induction melting rapid prototyping. Temperature ≥1500 ℃.
4.3 high-purity graphite crucible. 30mL.
4.4 graphite mold. the upper end of the inner diameter of 36mm, the lower end of the inner diameter of 33mm, deep 3mm, bottom thickness (1 ~ 1.5) mm.
4.5 specimen surface processing equipment. milling machines, lathes, planers, filing and other non-polluting steel surface processing equipment. When roughing, it can also be used grinders, sand
Turbines, sandpaper disc or belt grinding machines.
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