Q51 石墨材料 标准查询与下载



共找到 209 条与 石墨材料 相关的标准,共 14

Dimensions of cylindrical machined graphite electrodes

ICS
25.180.10;29.060.10;71.100.30
CCS
Q51
发布
2010-03-23
实施

Test Method for Scleroscope Hardness Testing of Carbon and Graphite Materials

ICS
71.100.99
CCS
Q51
发布
2010
实施

Test Method For Sonic Velocity In Manufactured Carbon And Graphite Materials For Use In Obtaining An Approximate Young S Modulus

ICS
71.100.99
CCS
Q51
发布
2009
实施

Test Method For Standard Test Method For Air Oxidation Of Carbon And Graphite In The Kinetic Regime

ICS
71.060.10
CCS
Q51
发布
2009
实施

Terminology Relating to Manufactured Carbon and Graphite

ICS
01.040.71;71.060.10
CCS
Q51
发布
2009
实施

Sonic velocity measurements are useful for comparing materials. A value for Young''s modulus can be obtained for many applications, which will be in good agreement with the value obtained by other methods, such as in Test Method C 747. The accuracy of the Young''s modulus calculated from Eq 1 will depend upon the uncertainty in Poisson''s ratio and its impact on the evaluation of the Poisson''s factor in Eq 2. If the grain size of the carbon or graphite is greater than or about equal to the wavelength of the sonic pulse, the method may not be providing a value of Young’s modulus representative of the bulk material. Therefore, it would be desirable to test a lower frequency (longer wavelength) to demonstrate that velocity is independent of frequency. Significant signal attenuation should be expected when the grain size of the material is greater than or about equal to the wavelength of the transmitted sonic pulse. If the sample is only a few grains thick, the acceptability of the method’s application should be demonstrated by initially performing measurements on a series of tests covering a range of sample lengths between the proposed test length and a test length incorporating sufficient grains to adequately represent the bulk material.1.1 This test method covers a procedure for measuring the sonic velocity in manufactured carbon and graphite which can be used to obtain Young''s modulus. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Sonic Velocity in Manufactured Carbon and Graphite Materials for Use in Obtaining Young''s Modulus

ICS
71.100.99 (Other products of the chemical industry
CCS
Q51
发布
2009
实施

Standard Terminology Relating to Manufactured Carbon and Graphite

ICS
71.060.10 (Chemical elements)
CCS
Q51
发布
2009
实施

This Standard specifies the testing methods for taper screw thread angle and pitch diameter of cylindrical machined graphite electrodes used for electric steel making.

Testing methods for taper screw thread angle and pitch diameter of cylindrical machined graphite electrodes

ICS
25.180.10
CCS
Q51
发布
2008-10-20
实施
2008-10-20

Property data obtained with the recommended test methods identified herein may be used for research and development, design, manufacturing control, specifications, performance evaluation, and regulatory statutes pertaining to high temperature gas-cooled reactors. The test methods are applicable primarily to specimens in the non-irradiated and non-oxidized state. Many are also applicable to specimens in the irradiated or oxidized state, or both, provided the specimens meet all requirements of the test method. The user is cautioned to consider the instructions given in the test methods. Additional test methods are in preparation and will be incorporated. The user is cautioned to employ the latest revision.1.1 This practice covers the test methods for measuring the properties of graphite and boronated graphite materials. These properties may be used for the design and evaluation of high-temperature gas-cooled reactor components. 1.2 The test methods referenced herein are applicable to materials used for replaceable and permanent components as defined in Section 7 and Section 9, and includes fuel elements; removable reflector elements and blocks; permanent side reflector elements and blocks; core support pedestals and elements; control rod, reserve shutdown, and burnable poison compacts; and neutron shield material. 1.3 This practice includes test methods that have been selected from existing ASTM standards, ASTM standards that have been modified, and new ASTM standards that are specific to the testing of materials listed in 1.2. Comments on individual test methods for graphite and boronated graphite components are given in Sections 8 and 10, respectively. The test methods are summarized in Tables 1 and 2. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Testing Graphite and Boronated Graphite Materials for High-Temperature Gas-Cooled Nuclear Reactor Components

ICS
27.120.10 (Reactor engineering)
CCS
Q51
发布
2008
实施

Specification for Isotropic and Near-Isotropic Nuclear Graphites

ICS
27.120.30
CCS
Q51
发布
2008
实施

The round robin testing on which the precision and bias for this test method have been determined employed a range of graphites (see Table 2) whose grain sizes were of the order of 1 mil to ¼ in. (0.0254 to 6.4 mm) and larger. This wide range of carbons and graphites can be tested with uniform gauge diameters with minimum parasitic stresses to provide quality data for use in engineering applications rather than simply for quality control. This test method can be easily adapted to elevated temperature testing of carbons and graphites without changing the specimen size or configuration by simply utilizing elevated temperature materials for the load train. This test method has been utilized for temperatures as high as 4352°F (2400°C). The design of the fixtures (Figs. 2-9 and Table 1) and description of the procedures are intended to bring about, on the average, parasitic stresses of less than 5 %. The specimens for the different graphites have been designed to ensure fracture within the gauge section commensurate with experienced variability in machining and testing care at different facilities. The constant gauge diameter permits rigorous analytical treatment. 5.2 Carbon and graphite materials exhibit significant physical property differences within parent materials. Exact sampling patterns and grain orientations must be specified in order to make meaningful tensile strength comparisons. See also Test Methods C565.1.1 This test method covers the testing of carbon and graphite in tension to obtain the tensile stress-strain behavior, to failure, from which the ultimate strength, the strain to failure, and the elastic moduli may be calculated as may be required for engineering applications. Table 2 lists suggested sizes of specimens that can be used in the tests. Note 18212;The results of about 400 tests, on file at ASTM as a research report, show the ranges of materials that have been tested, the ranges of specimen configurations, and the agreement between the testers. See Section 11. Note 28212;For safety considerations, it is recommended that the chains be surrounded by suitable members so that at failure all parts of the load train behave predictably and do not constitute a hazard for the operator. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Conversions are not provided in the tables and figures. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Tensile Stress-Strain of Carbon and Graphite

ICS
71.060.10
CCS
Q51
发布
2008
实施

This practice is intended as a reference for spectrochemical methods that utilize graphite electrodes. Methods should employ and reference one of the electrode shapes in this practice, but if this is not possible, the method should include electrode specifications for the specific shape used. This practice should be referred to in a method by including a statement such as the following in the section on Reagents and Materials:Graphite Electrodes—The electrode(s) shall be of high-purity graphite and conform to type(s) (insert designation from this method) as depicted in Practice E 130. 1.1 This practice covers a number of specific graphite electrode shapes and sizes that are useful in spectrochemical analysis. 1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

Standard Practice for Designation of Shapes and Sizes of Graphite Electrodes

ICS
25.220.20
CCS
Q51
发布
2008
实施

This document presents the basic information relative to bulk graphite production, structure, chemical properties, physical properties and neutron irradiation behavior. Bulk graphite characteristics, its manufacture, properties and irradiation behavior as well as a new generation of nuclear grades are briefly reviewed. An overview of graphite moderated gas-cooled reactor designs is also presented. The report serves as a summary of the training seminar on Nuclear Graphite conducted during the ASME Boiler and Pressure Vessel Code week, October 30. November 3, 2006, in Louisville, KY. There is no universally accepted code for the design of graphite moderator structures. The history of graphite moderated reactors is traced from the beginnings in 1942 to the most recent utility start-up in 1989. Developments have continued over the intervening years especially in the area of helium cooled High Temperature Reactors. Prismatic 30MWth, and pebble-bed 10MWth, test reactors were brought into operation in Japan and China, respectively.

Graphite for High Temperature Gas-Cooled Nuclear Reactors

ICS
27.120.10
CCS
Q51
发布
2008
实施

ERRATUM

ICS
CCS
Q51
发布
2007-07-09
实施

本标准规定了高纯石墨材料总稀土元素含量的分光光度测定方法的试剂、仪器和设备、试样制取、分析步骤、结果的计算等。 本标准适用于高纯石墨材料总稀土元素含量的测定。

High pure graphite materials-Determination of total rare earths content-spectrophotometric

ICS
29.050
CCS
Q51
发布
2007-01-25
实施
2007-07-01

本标准规定了高纯石墨材料氯含量的分光光度测定的范围、原理、试剂、仪器和材料、试验步骤、结果的计算、精密度等。 本标准适用于高纯石墨材料氯含量的测定。

High pure graphite materials-Determination of chlorines content-spectrophotometric method

ICS
29.050
CCS
Q51
发布
2007-01-25
实施
2007-07-01

本标准规定了高纯石墨制品中硅和铁的光谱测定溶液粉末法的试剂、仪器和设备、试样制取、分析步骤、结果的计算等。 本标准适用于高纯石墨制品中的硅和铁含量的测定。

Determination of trace boron in graphite products of High purty by spectroscopical method The powder method

ICS
29.050
CCS
Q51
发布
2007-01-25
实施
2007-07-01

本标准规定了高纯石墨制品中微量硼的光谱测定溶液干渣法的试剂、仪器和设备、试样制取、分析步骤、结果的计算等。 本标准适用于高纯石墨制品中微量硼的测定。

Determination of trace boron in graphite products of High purty by spectroscopical method The solution ang dry residue method

ICS
29.050
CCS
Q51
发布
2007-01-25
实施
2007-07-01

本标准规定了高纯石墨的技术性能及检验规则。 本标准适用于灰分含量(质量分数)低于0.1%的高纯石墨。

High purity graphite

ICS
29.120
CCS
Q51
发布
2006-12-31
实施
2007-07-01

이 규격은 흑연 도가니(이하 도가니라 한다.) 및 그 부속품에 대하여 규정한다.

Graphite crucible and its accessories

ICS
81.100
CCS
Q51
发布
2006-10-27
实施
2006-10-27



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