1.1 本试验方法描述了使用波长色散X射线荧光光谱法（XRF）测定钨基合金和硬质合金金属成分浓度的程序，通常以质量百分比报告。本试验方法包括使用试剂级金属氧化物、硼酸锂化合物和熔合技术制备标准。本试验方法详述了粉末和烧结钨基材料代表性试样的制备技术。该测试方法适用于多种成分，可用于验收符合等级规范的材料。 1.2 本试验方法适用于添加难熔金属碳化物和粘结金属的钨或碳化钨混合物。 表1 列出了最常见的元素成分及其浓度范围。注意，其中许多以金属碳化物的形式出现。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本试验方法允许测定粉末和烧结钨基硬质合金的化学成分。本试验方法不适用于在空气中高温下不易氧化的材料，如钨/铜、钨/银合金或钨/钴钌合金。 5.2 本试验方法规定了玻璃熔合材料用硼酸锂化合物。然而，还有许多其他选择。这些包括其他硼酸锂化合物、碳酸钠和硼酸盐混合物等。只要相同的融合混合物用于标准品和样品，此处规定的方法仍然适用。

1.1 This test method describes a procedure for the determination of the concentration, generally reported as mass percent, of the metallic constituents of tungsten-based alloys and hardmetals utilizing wavelength dispersive X-ray fluorescence spectrometry (XRF). This test method incorporates the preparation of standards using reagent grade metallic oxides, lithium-borate compounds, and fusion techniques. This test method details techniques for preparing representative specimens of both powder and sintered tungsten-based material. This test method is accurate for a wide range of compositions, and can be used for acceptance of material to grade specifications. 1.2 This test method is applicable to mixtures of tungsten or tungsten carbide with additions of refractory metal carbides and binder metals. Table 1 lists the most common elemental constituents and their concentration range. Note that many of these occur as metallic carbides. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method allows the determination of the chemical composition of powdered and sintered tungsten-based hardmetals. This test method is not applicable to material which will not oxidize readily at high temperatures in air, such as tungsten/copper, tungsten/silver alloys, or tungsten/cobalt-ruthenium alloys. 5.2 This test method specified lithium-borate compounds for the glass fusion material. However, numerous other choices are available. These include other lithium-borate compounds, sodium carbonate and borate mixtures, and others. The methodology specified here is still applicable as long as the same fusion mixture is used for both standards and specimens.