本文件规定了除铁氧体以外的软磁材料在20 Hz~100 kHz频率范围的交流磁性能测试方法。本文件涉及的材料包括电工钢、铸件和软磁复合材料、GB/T 21220中列出的特殊合金以及GB/T 24296中列出的压制、烧结和金属注射成形的元件。
本文件旨在明确用环形试样测试软磁材料磁性能的通则和技术细节。对于粉末状材料，通过适当挤压的方法制成环形试样。
软磁材料的直流磁性能的环形试样测量方法见GB/T 13012；软磁元件的磁特性测定见GB/T 28869.1。
通常在(23±5)℃的环境温度下检测，测试前环形试样先退磁。经供需双方协商后，检测也能在其他温度范围内进行。

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本文件规定了ISO 5826中直流焊接用内置整流器的单相逆变电阻焊变压器的附加要求。
本文件适用于主要用于焊钳的变压器，其工作频率为1 000 Hz，额定输入电压为500 V或其他电压值。如本文件未修订，ISO 5826的要求也适用。

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GB/T 36914的本部分规定了HZ型和J型钢领的主要尺寸规格与所配用的钢丝圈质量及其质量偏差，同时定义了钢丝圈的标记方法。

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GB/T 13441的本部分涉及与居住者舒适和烦恼相关的建筑物内暴露于人体全身振动与冲击，规定了测量和评价方法，包括测量方向和测量位置的确定。定义了适用于1 Hz～80 Hz频率范围内的频率计权值Wm，在此频率范围内不需明确建筑物内居住者的姿势。

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4.1 This test method evaluates the performance of flat-rolled magnetic materials over a wide frequency range of ac excitation with and without incremental dc bias, as used on transformers, motors, and other laminated core devices.4.2 This test method is suitable for design, specification acceptance, service evaluation, and research.4.3 The application of test results obtained with this test method to the design or evaluation of a particular magnetic device must recognize the influence of the magnetic circuitry upon its performance. Some specific items to consider are size, shape, holes, welding, staking, bolting, bracketing, shorting between laminations, ac waveform, adjacent magnetic fields, and stress.1.1 This test method covers the determination of the magnetic properties of flat-rolled magnetic materials using Epstein test specimens with double-lap joints in the 25-cm Epstein frame. It covers determination of core loss, rms and peak exciting current, exciting power, magnetic field strength, and permeability. This test method is commonly used to test grain-oriented and nonoriented electrical steels but may also be used to test nickel-iron, cobalt-iron, and other flat-rolled magnetic materials.1.2 This test method shall be used in conjunction with Practice A34/A34M and Test Method A343/A343M.1.3 Tests under this test method may be conducted with either normal ac magnetization or with ac magnetization and superimposed dc bias (incremental magnetization).1.4 In general, this test method has the following limitations:1.4.1 Frequency—The range of this test method normally covers frequencies from 100 to 10 000 Hz. With proper equipment, the test method may be extended above 10 000 Hz. When tests are limited to the use of power sources having frequencies below 100 Hz, they shall use the procedures of Test Method A343/A343M.1.4.2 Magnetic Flux Density  (may also be referred to as Flux Density)—The range of magnetic flux density for this test method is governed by the test specimen properties and by the available instruments and other equipment components. Normally, for many materials, the magnetic flux density range is from 1 to 15 kG [0.1 to 1.5 T].1.4.3 Core Loss and Exciting Power—These measurements are normally limited to test conditions that do not cause a test specimen temperature rise in excess of 50°C or exceed 100 W/lb [220 W/kg].1.4.4 Excitation—Either rms or peak values of exciting current may be measured at any test point that does not exceed the equipment limitations provided that the impedance of the ammeter shunt is low and its insertion into the test circuit does not cause appreciably increased voltage waveform distortion at the test magnetic flux density.1.4.5 Incremental Properties—Measurement of incremental properties shall be limited to combinations of ac and dc excitations that do not cause secondary voltage waveform distortion, as determined by the form factor method, to exceed a shift of 10 % away from sine wave conditions.1.5 The values and equations stated in customary (cgs-emu and inch-pound) or SI units are to be regarded separately as standard. Within this standard, SI units are shown in brackets except for the sections concerning calculations where there are separate sections for the respective unit systems. 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 this standard.1.6 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.1.7 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.

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1 Scope This part of IEC 61000 relates to the immunity requirements and test methods for electrical and electronic equipment to conducted, common mode disturbances in the range d.c. to 150 kHz. The object of this standard is to establish a common and r

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本规程适用于20Hz～1 kHz频率范围内使用的矢量水听器的首次检定、后续检定和使用中检查。
对于包含声压通道的矢量水听器类型，本规程只适用于检定其矢量通道。

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