1.1本规范规定了压实、矿物绝缘、金属护套、S型（铂-10%铑对铂）、R型（铂-13%铑对铂）和B型（铂-30%铑对铂-6%铑）贵金属热电偶的尺寸和材料要求。本规范还规定了至少具有一对贵金属热电偶的压实矿物绝缘金属护套电缆的尺寸和材料要求。 1.2本规范描述了所需的加工和测试要求，以及可选的补充测试和质量保证要求。 1.3规定了贵金属热电偶或热电偶的类型，氧化镁（MgO）或氧化铝（Al 2. O 3. )绝缘材料和贵金属合金或其他替代耐热护套材料。还规定了选择热电偶测量结配置和过渡或终止。 1.4以英寸-磅单位或国际单位制（公制）表示的数值可单独视为标准。每个系统中规定的值不是精确的等效值，每个系统应独立于其他系统使用。 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和健康实践，并确定监管要求的适用性。

1.1 This specification establishes dimensional and material requirements for compacted, mineral-insulated, metal-sheathed, Type S (platinum-10 % rhodium versus platinum), Type R (platinum-13 % rhodium versus platinum), and Type B (platinum-30 % rhodium versus platinum-6 % rhodium) noble metal thermocouples. This specification also establishes dimensional and material requirements for compacted, mineral-insulated, metal-sheathed cable with at least one noble metal thermoelement pair. 1.2 This specification describes both the required processing and testing requirements and also the optional supplementary testing and quality assurance requirements. 1.3 Provisions are made for selecting the type of noble metal thermocouple or thermoelements, either magnesia (MgO) or alumina (Al 2 O 3 ) insulation, and a noble metal alloy or other alternate heat-resistant sheath material. Provisions are also made for selecting a thermocouple measuring junction configuration and for a transition or termination. 1.4 The values stated in inch-pound units or SI (metric) units may be regarded separately as standard. The values stated in each system are not the exact equivalents, and each system shall be used independently of the other. 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 requirements prior to use.