ISO 4498:2010规定了不含硬质合金的烧结金属材料的硬度测试方法。 程序1确定整个材料的表观硬度。 程序1 适用于尚未进行任何热处理的烧结金属材料，或已经以硬度基本均匀至表面下方至少5mm深度的方式热处理的烧结金属材料， 适用于已经经过处理的烧结金属材料的表面，使得该部分的硬度在表面以下5mm深度处不均匀， 因此适用于基本上通过碳表面富集或通过碳和氮（例如通过渗碳，碳氮共渗，氮碳共渗或硫化）获得硬度的材料，以及 适用于已经感应淬火的材料。 步骤2确定金属相的显微硬度。 程序2 适用于所有类型的烧结金属材料， 特别用于根据ISO 4507中描述的方法确定壳体硬化或碳氮共混材料的硬度分布，以及 也适用于已进行表面处理的任何烧结金属材料，例如电镀，化学镀

ISO 4498:2010 specifies methods of hardness testing of sintered metal materials, excluding hardmetals. Procedure 1 determines the apparent hardness of the whole material. Procedure 1 applies to sintered metal materials which have either not been subjected to any heat treatment, or which have been heat treated in such a way that the hardness is essentially uniform to a depth of at least 5 mm below the surface, applies to the surfaces of sintered metal materials which have been treated in such a way that the hardness is not uniform in the section to a depth of 5 mm below the surface, therefore applies to materials in which the hardness is obtained essentially by surface enrichment by carbon, or by carbon and nitrogen (for example, by carburizing, carbonitriding, nitrocarburizing or sulphidizing), and applies to materials which have been induction hardened. Procedure 2 determines the microhardness of the metal phase. Procedure 2 applies to all types of sintered metal materials, is used, in particular, to determine the hardness profile of case‑hardened or carbonitrided materials in accordance with the method described in ISO 4507, and also applies to any sintered metallic materials which have been subjected to surface treatments such as electrodeposited plating, chemical coating, chemical vapour deposition (CVD), physical vapour deposition (PVD), laser, ion bombardment, etc. To determine the microhardness of treated surfaces, Procedure 2 applies.