BS ISO 4269:2001 pdf download,Petroleum and liquid petroleum products – Tank calibration by liquid measurement – Incremental method using volumetric meters. This International Standard BS ISO 4269:2001 specifies a method for the calibration of tanks by addition of batches of liquid. The liquid is used as a volume-transfer medium, measured accurately by means of a […]
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IEC 63305:2024 pdf download,Underwater acoustics – Calibration of acoustic wave vector receivers in the frequency range 5 Hz to 10 kHz. Usually, acoustic wave vector receivers are designed and constructed based on one of two principles. One is the sound pressure difference (gradient) principle. When measuring with this sensor, the vector receiver is rigidly fixed
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IEC 60676:2024 pdf download,Industrial electroheating equipment – Test methods for direct arc furnaces. IEC 60676:2024 specifies the basic test procedures,conditions and methods for establishing the main performance parameters and the main operational characteristics of furnaces for directarc heating,forming arcs between the electrode and metal,such as electric arc furnaces usingalternating current(EAF AC)or direct current(EAF DC)，and ladle
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IEC 61540:2023 pdf download, Portable residual current devices (PRCDs) without integral overcurrent protection for household and similar use. IEC 61540:2023 applies to portable residual current devices (PRCDs) for household and similar uses, consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate
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IEC 62991:2022 pdf download,Particular requirements for source switching equipment (SSE). IEC 62991:2022 applies to source switching equipment, hereafter referred to as SSE, for household and similar uses, primarily intended to be used for energy efficiency (EE) purposes with local production and/or storage of energy. SSE is intended to be installed in low voltage prosumer electrical
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