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ASTM B70-90(2019)

Действует
Standard Test Method for Change of Resistance With Temperature of Metallic Materials for Electrical Heating — 2 стр.
Значение и использование

2.1 The change in resistance with temperature for heating element materials is a major design factor and may influence material selection. The measurement of this change is essential to ensure that heating elements perform as designed. This test method was designed to minimize the effect different manufacturing processes have on resistance change, thereby yielding results that are reproducible.

Область применения

1.1 This test method covers the determination of the change of resistance with temperature of metallic materials for electrical heating, and is applicable over the range of service temperatures.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

ICS
77.040.01 Testing of metals in general / Испытания металлов в целом
Сборник ASTM
02.04 Nonferrous Metals – Nickel, Titanium, Lead, Tin, Zinc, Zirconium, Precious, Reactive, Refractory Metals and Alloys: Materials for Thermostats, Electrical Heating and Resistance Contact, and Connectors / Цветные металлы - Никель, Кобальт, Свинец, Олово, Цинк, Кадмий, Драгоценные металлы, химически активные металлы, Тугоплавкие металлы и сплавы, Материалы для Термостатов, Электронагревательных приборов, Контактов, Соединительные устройств
Тематика
Other Nonferrous Metals