Refrigerating systems and heat pumps. Liquid level indicating devices. Requirements, testing and markingWhat is BS EN 12178 Liquid level indicating devices in refrigerating systems about? BS EN 12178 is a European standard that discusses refrigerating systems and heat pumps. BS EN 12178 specifies safety requirements, safety factors, test methods, test pressures, and marking of liquid level indicating devices, referred to throughout this standard as level indicators, for use in refrigerating systems and heat pumps. BS EN 12178 applies to devices

Manufacturers of electrical components

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BS EN 60749-35 defines the procedures for performing acoustic microscopy on plastic encapsulated electronic components

• individual electrification systems and collective electrification systems

This part 2-3 of IEC 62676 defines procedures for communication between network video clients and video transmitter devices based on Web Services

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plasma displays (PDP)

Annex ZA updated

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Annex A (normative) UK specific recommendations

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