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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>52sale5126am</b></span></td> <td class="row1" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/Elveron/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pon 1:51, 31 Sty 2011<span class="gen"> </span> Temat postu: uggs kopen The role of metallurgy and the developm</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">,<a href="http://www.uggskopens.com" target="_blank" class="postlink">uggs kopen</a> <br />The role of metallurgy and the development of reference material <br /> <br /> <br />Iron, iron ore and other varieties of amount of large, good economic returns, in line with market demand, so despite the current standard material on the market than 2,000, but most are concentrated in these species, causing the same kind of standard material (mainly secondary reference material) repeat too much, to the value unity more difficult. Therefore, the industry should be on standard materials planning, coordination, make the necessary guidance. Concrete can take the following approach: (1) According to the metallurgical product variety and quality requirements, propose a plan to guide and coordinate the development and production units in the plan. (2) to develop guidance documents, guidance, supervision and development and production of reference materials, standard reference material to ensure that the value of similar consistency. 2,2 to improve the current should be the following work to improve the quality of metallurgical standard material: Kerui Hua Ye t the role of disc material bearing in mind the standard of their development 35 (1) to improve the metallurgical level of homogeneity of reference materials. Metallurgical preparation process should make more efforts despite the vast majority of our metallurgical homogeneity of reference materials was good, but the advanced countries in some respects still a gap compared to the standard material. For example, low-alloy steel with 0.90 carbon, in the same direct-reading spectrometer on the same uniform under the experimental conditions do experiments to test for 1O times,<a href="http://www.toryburch-shoes.org" target="_blank" class="postlink">tory burch shoes</a>, foreign reference material standard deviation 0.0038, while China 0 .0081 Preparation of the reason is not doing the work on the fine. Quasi-material category of metallurgical products as long as the thumb of carbon and sulfur to resolve two components of the uniform. 'Well, common alloying elements (other than hazardous impurities) the uniformity of the problem is solved. Standard material on the raw materials to study the various factors that affect uniformity. In addition, there should be uniformity test and evaluation techniques for more in-depth study. (2) to improve the metallurgical standard reference material value. Raise the level of valuation is to increase the accuracy of valuation, which is to improve the accuracy of the method of valuation and Manmin degrees and staff test level. This should continue to follow world standards,<a href="http://www.timberlandbootss.com" target="_blank" class="postlink">timberland boots</a>, and strive to develop. Innovation. (3) improve the management level of standard materials. Variety of metallurgical standard material,<a href="http://www.uggskopens.com" target="_blank" class="postlink">uggs kopen</a>, similar to the variety abound. Validation checks should be conducted periodically to ensure the comparability of the standard value, development and production of this work bears the most important responsibility units. Turned to study the production of this unit standard research material and other units of the standard material development and production of comparability, the original copy of the standard material and reference material can be released by Contrast. To track the reference material has been published over time, the test level, the standard value to determine whether the original has changed, if changes should be corrected promptly. Although China widened 2.3 metallurgical standard reference material in the country account for a significant proportion of material, but there is still much work to be done. (1) widening of the instruments with the standard material. Analysis of metallurgical analysis equipment abroad accounted for more than 9O, wet chemical analysis is difficult to analyze the samples for the instrument. Analysis of instrumental analysis is relative, it requires the sample matrix and analysis of state standards for substances similar to the national direct-reading spectrometer photoelectric, x-ray fluorescence spectrometer and other equipment with more than 700, including for metallurgical analysis of more than 500. Large, medium-sized enterprises and research centers all 7O analysis and testing depends on the instrumental analysis, and the current production of China has developed one or two instruments with only a dozen varieties of standard materials, 66 sets. Therefore, we should vigorously develop the analytical instruments used standard material. (2) the development of trace elements in standard material. Vulnerable to the trace element analysis matrix element effects and the impact of various kinds of interference, therefore, an urgent need to trace elements in various materials, reference materials. Now published only iron and carbon steel, nickel alloy series of trace elements in standard materials, material requirements of these standards is not, but the market is lacking. (3) the development phase of the standard material. There is only one carbide phase analysis of the standard material. Japan has studied with Fe-c, Fe-V - C, Fe-Ti - C, high-strength steel with engraved, cr-Mo steel, stainless steel, carbide phase analysis in the standard material. No doubt such standard materials should be actively developed. It metallurgy materials science and technology to promote the development of a great role. (4) expand the application-specific standard material. At present, carbon, sulfur, oxygen, chlorine, hydrogen, and other special reference materials. 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