ASTM E322-1996(2004) Standard Test Method for X-Ray Emission Spectrometric Analysis of Low-Alloy Steels and Cast Irons《低合金钢和铸铁的X射线发射光谱测定分析法》.pdf
《ASTM E322-1996(2004) Standard Test Method for X-Ray Emission Spectrometric Analysis of Low-Alloy Steels and Cast Irons《低合金钢和铸铁的X射线发射光谱测定分析法》.pdf》由会员分享,可在线阅读,更多相关《ASTM E322-1996(2004) Standard Test Method for X-Ray Emission Spectrometric Analysis of Low-Alloy Steels and Cast Irons《低合金钢和铸铁的X射线发射光谱测定分析法》.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: E 322 96 (Reapproved 2004)Standard Test Method forX-Ray Emission Spectrometric Analysis of Low-Alloy Steelsand Cast Irons1This standard is issued under the fixed designation E 322; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、 revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the X-ray emission spectromet-ric analysis of low-alloy steels and cas
3、t irons for the followingelements in the ranges indicated:Elements Concentration Range, %Manganese 0.20 to 1.50Nickel 0.10 to 1.00Chromium 0.10 to 1.00Molybdenum 0.04 to 0.40Copper 0.05 to 0.30Vanadium 0.03 to 0.25NOTE 1These concentration ranges can be extended by the use ofsuitable standards. The
4、detection limit for the elements is lower than thelisted value. The ranges represent the actual levels at which this testmethod was tested.1.2 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to
5、 establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E 135 Terminology Relating to Analytical Chemistry forMetals, Ores, and Related MaterialsE 350 Test Methods for Chemical Analysis of
6、Carbon Steel,Low Alloy Steel, Silicon Electrical Steel, Ingot Iron, andWrought IronE 351 Test Methods for Chemical Analysis of Cast IronAll TypesE 882 Guide for Accountability and Quality Control in theChemical Analysis Laboratory3. Terminology3.1 All terms used in this test method are in conformanc
7、ewith Terminology E 135.4. Summary of Test Method4.1 The sample is finished to a clean, uniform surface, andthen irradiated by an X-ray beam of high energy. The second-ary X rays produced are dispersed by means of a crystal and theintensities are measured by a detector at selected wavelengths.The re
8、sults are obtained by relating measured intensities to anappropriate calibration curve.5. Significance and Use5.1 This test method is a comparative method intended foruse as a routine method to test materials for compliance withcompositional specifications. It is assumed that all who use thistest me
9、thod will be trained analysts capable of performingskillfully and safely. It is expected that work will be performedin a properly equipped laboratory under appropriate qualitycontrol practices, such as those described in Guide E 882.6. Apparatus6.1 Specimen Preparation Equipment:6.1.1 Disk or Belt S
10、ander, capable of providing test speci-mens with a uniform, clean surface finish, or other equivalentfinishing device.6.2 Excitation Source:6.2.1 X-ray Generator, with a full-wave rectified powersupply, or constant potential power supply.6.2.2 X-ray Tube, with a high-purity tungsten target.6.3 Spect
11、rometer:6.3.1 Analyzing Crystal, lithium fluoride, flat or curvedhaving a 2d spacing of 0.40276 nm.6.3.2 CollimationProvide appropriate collimation toachieve the required resolution. For curved optics, no collima-tion is required.6.3.3 GoniometerA goniometer that provides an angularscan from 10 to 1
12、48.6.3.4 Detectors, proportional or scintillation counter.1This test method is under the jurisdiction of ASTM Committee E01 onAnalytical Chemistry for Metals, Ores, and Related Materials and is the directresponsibility of Subcommittee E01.01 on Iron, Steel, and Ferroalloys.Current edition approved O
13、ct. 1, 2004. Published Oct. 1, 2004. Originallyapproved in 1967. Last previous edition approved in 1996 as E 322 96e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer t
14、o the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.4 Measuring UnitAn electronic circuit panel capable ofamplifying, counting, or integrating pulses received from thedetector tu
15、be. In addition, a pulse height analyzer should beavailable for pulse energy discrimination if needed. Goodprecision and accuracy have been obtained without the use ofa pulse height analyzer.7. Reference Materials7.1 Certified Reference Materials Low-alloy steel andcast iron certified reference mate
16、rials are commercially avail-able from a number of sources.7.2 Low-Alloy Steel Reference MaterialsLow-alloy steeland cast iron reference materials can be used. They should beanalyzed and thoroughly evaluated in accordance with TestMethods E 350 and E 351.8. Safety Precautions8.1 Normal safety precau
17、tions for X-ray spectrographicinstallations are to be observed. It is recommended that suitablemonitoring devices (film badges and dosimeters) be availableand worn by all participating personnel. Accurate control andregulation of monitoring devices at all times is recommended.9. Preparation of Refer
18、ence Materials and Specimens9.1 Using the belt sander equipped with aluminum oxideabrasive paper, prepare a smooth, clean surface on the testspecimen having a minimum area of 25 mm2. Use 240 grit orfiner, but after a grit has been selected, the same grit numbershould always be used. Other equivalent
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTME32219962004STANDARDTESTMETHODFORXRAYEMISSIONSPECTROMETRICANALYSISOFLOWALLOYSTEELSANDCASTIRONS 低合金钢

链接地址:http://www.mydoc123.com/p-527397.html