Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM C1113/C1113M-09(2019)
• Năm ban hành / Publication date: 2019
• Tình trạng / Status: A - Còn hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method for Thermal Conductivity of Refractories by Hot Wire (Platinum Resistance Thermometer Technique)
• Chỉ số phân loại Quốc tế (ICS) / By field: 81.080 - Vật liệu chịu lửa
• Số trang / Page: 6
• Phạm vi áp dụng / Scope of standard: 1.1 This test method covers the determination of thermal conductivity of non-carbonacious, dielectric refractories. 1.2 Applicable refractories include refractory brick, refractory castables, plastic refractories, ramming mixes, powdered materials, granular materials, and refractory fibers. 1.3 Thermal conductivity k-values can be determined from room temperature to 1500 °C [2732 °F], or the maximum service limit of the refractory, or to the temperature at which the refractory is no longer dielectric. 1.4 This test method is applicable to refractories with k-values less than 15 W/m·K [100 Btu·in./h·ft²·°F]. 1.5 In general it is difficult to make accurate measurements of anisotropic materials, particularly those containing fibers, and the use of this test method for such materials should be agreed between the parties concerned. 1.6 Units-The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.7 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. 1.8 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.