Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated - Aluminium alloy flanges Ingestion-build-54371 PD IEC TR 63139 provides

PD IEC TR 63139 provides details on the insulation between LV supply and control line conductors

BS 7063 provides you with guidance on methods of measuring the characteristics of reproducing equipment for analogue audio disk records

This Part provides the requirements for specimen selection and/or its design and construction

BS EN 2591-6406 on the method to test mechanical endurance of optical elements is useful for:

Flanges and their joints. Circular flanges for pipes, valves, fittings and accessories, PN designated - Aluminium alloy flanges Ingestion-build-54371 PD IEC TR 63139 provides1 Scope This European Standard specifies requirements for PN designated circular flanges for pipes, valves, fittings and accessories made from aluminium alloy in the range of DN 15 to DN 600 and PN10 to PN 63 (see Table 1). This European Standard specifies the types of flanges and their facings, dimensions and tolerances, bolt sizes, surface finish of jointing faces, marking and materials together with associated pressure temperature (p T) ratings.