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安全玻璃和玻璃材料检测项目报价? 解决方案? 检测周期? 样品要求? |
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GB/T 8411的本部分适用于电绝缘用陶瓷、玻璃陶瓷、玻璃结合云母和玻璃材料。本部分规定了试验方法,目的在于用这些方法测出试样所用材料的典型性能参数。在多数情况下,电绝缘陶瓷部件的尺寸和形状与试样相差很远,因此这些测试所得出的结果仅是实际部件特性的指导性参数。对试样成型和试样处理方法的要求在相关处讨论。
本标准规定了建筑幕墙和门窗防爆炸冲击波性能的术语和定义、分级、试件、试验场地和仪器设备、检测步骤、数据处理、结果判定和检测报告。本标准适用于以玻璃为面板材料的幕墙和门窗的防爆炸冲击波性能分级及检测。其他建筑构件的防爆炸冲击波性能检测可参照使用。
本规范适用于煤矿立井井筒及相关硐室工程的设计。
本标准规定了外科植入物用生物玻璃和玻璃陶瓷的材料要求和测试技术,本标准所述材料可用于多孔状和粉末状外科植入物,也可用于外科器械的涂层,但不包括药物输送系统。生物玻璃和玻璃陶瓷与骨和软组织的生物学反应已经在临床应用和实验室研究中得到验证。本标准不包含合成羟基磷灰石、羟基磷灰石涂层,氧化铝陶瓷,α-磷酸三钙和β-磷酸三钙以及白磷钙石。
本技术文件适用于HB964-70中的ZM-1、ZM-2、ZM-3、ZM-5合金的铸造。
本标准规定了溶解乙炔设备的术语和定义、压力分等与产品分类、技术要求、试验方法、检验规则以及标志、包装、运输和贮存。本标准适用于以电石为原料生产溶解乙炔、产量大于或等于20 m<上标3>/h的溶解乙炔设备。管道输送乙炔的乙炔设备可参照执行。本标准不适用于国防、铁路和航运系统的专用乙炔设备。
1.1 These test methods cover the determination of the modulus of rupture in bending of glass and glass-ceramics.1.2 These test methods are applicable to annealed and prestressed glasses and glass-ceramics available in varied forms. Alternative test methods are described; the test method used shall be determined by the purpose of the test and geometric characteristics of specimens representative of the material.1.2.1 Test Method A is a test for modulus of rupture of flat glass.1.2.2 Test Method B is a comparative test for modulus of rupture of glass and glass-ceramics.1.3 The test methods appear in the following order:Sections Test Method A6 to 9 Test Method B10 to 51.4 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. Specific hazard statements are given in Section 10 and A1.5, A2.3.3, A2.4.3 and A2.5.3.
4.1x00a0;For the purpose of this test, glasses and glass-ceramics are considered brittle (perfectly elastic) and to have the property that fracture normally occurs at the surface of the test specimen from the principal tensile stress. The modulus of rupture is considered a valid measure of the tensile strength subject to the considerations discussed below. 4.2x00a0;It is recognized that the modulus of rupture for a group of test specimens is influenced by variables associated with the test procedure. These include the rate of stressing, test environment, and the area of the specimen subjected to stress. Such factors are specified in the test procedure or required to be stated in the report. 4.3x00a0;It is also recognized that the variables having the greatest effect on the modulus of rupture value for a group of test specimens are the condition of the surfaces and glass quality near the surfaces in regard to the number and severity of stress-concentrating discontinuities or flaws, and the degree of prestress existing in the specimens. Each of these can represent an inherent part of the strength characteristic being determined or can be a random interfering factor in the measurement. 4.4x00a0;Test Method A is designed to include the condition of the surface of the specimen as a factor in the measured strength. It is, therefore, desirable to subject a fixed and significant area of the surface to the maximum tensile stress. Since the number and severity of surface flaws in glass are primarily determined by manufacturing and handling processes, this test method is limited to products from which specimens of suitable size can be obtained with minimal dependence of measured strength upon specimen preparation techniques. This test method is therefore designated as a test for modulus of rupture of flat glass. 4.5x00a0;Test Method B describes a general procedure for test, applicable to specimens of rectangular or elliptical cross section. This test method is based on the assumption that a comparative measurement of strength on groups of specimens is of significance for many purposes, such as determining the effect of environment or stress duration, or the effectiveness of varied prestressing techniques or strengths characteristic of glass-ceramics of differing composition or heat treatment. In this test method the surfaces of the specimens are not assumed to be characteristic of a product or material, but are considered to be determined by the procedures used to prepare the specimens. Though the stated procedure permits a wide variation in both specimen size and test geometry, it is necessary to use identical test conditions and equivalent procedures for specimen preparation to obtain comparable strength values. The use of a controlled abrasion of the specimen as a final normalizing procedure is recommended for such comparative tests. 4.6x00a0;A comparative abraded strength, determined as suggested in Test Method B, is not to be considered as a minimum value characteristic of the material tested nor as directly related to a maximum attainable strength value through test of specimens with identical flaws. The operationally defined abrasion procedure undoubtedly produces flaws of differing severity when applied to varied materials, and the measured comparative strengths describe the relative ability to withstand externally induced stress as affected by the specific abrasion procedure. 1.1x00a0;These t......
3.1x00a0;These test methods can be used to ensure that the chemical composition of the glass meets the compositional specification required for the finished glass product. 3.2x00a0;These test methods do not preclude the use of other methods that yield results within permissible variations. In any case, the analyst should verify the procedure and technique employed by means of a National Institute of Standards and Technology (NIST) standard reference material having a component comparable with that of the material under test. A list of standard reference materials is given in the NIST Special Publication 260,3 current edition. 3.3x00a0;Typical examples of products manufactured using soda-lime silicate glass are containers, tableware, and flat glass. 3.4x00a0;Typical examples of products manufactured using borosilicate glass are bakeware, labware, and fiberglass. 3.5x00a0;Typical examples of products manufactured using fluoride opal glass are containers, tableware, and decorative glassware. 1.1x00a0;These test methods cover the quantitative chemical analysis of soda-lime and borosilicate glass compositions for both referee and routine analysis. This would be for the usual constituents present in glasses of the following types: (1) soda-lime silicate glass, (2) soda-lime fluoride opal glass, and (3) borosilicate glass. The following common oxides, when present in concentrations greater than indicated, are known to interfere with some of the determinations in this method: 28201;% barium oxide (BaO), 0.28201;% phosphorous pentoxide (P2O5), 0.058201;% zinc oxide (ZnO), 0.058201;% antimony oxide (Sb2O3), 0.058201;% lead oxide (PbO). 1.2x00a0;The analytical procedures, divided into two general groups, those for referee analysis, and those for routine analysis, appear in the following order: x00a0; x00a0; Sections Procedures for Referee Analysis: x00a0; x00a0;