Ships and marine technology. Test method of flow induced in-pipe noise source characteristics for a ship-used pump1 Scope This document specifies a test method for determining flow induced in pipe noise source characteristics of a ship used pump as a two port sound source in laboratory conditions by measuring acoustic pressures in the pipe reaches of inlet and outlet. The test method is applicable to all types of centrifugal pumps with a diameter over 50 mm operating under steady conditions. The suitable frequency range of the test method is about 10 Hz to 1 000

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they are not production tests to be carried out on each pressure regulator or filter-regulator manufactured

Unique single run production orders

The method does not determine the oxygen content

The tools and techniques

Who is BS EN IEC 61207-2 - Measuring oxygen in gas utilizing high-temperature electrochemical sensors for

BS EN 62326-1 on the specification of printed boards is useful for:

With regards to the aerospace industry peek ties are suitable due to their good ratio weight to tensile strength

and steel is the most important material in this family

specifies metrological traceability to established

passenger conveyors and paternosters are heavy units and have specific requirements for installation and safe use of public

Requirements for both 50 mm and 58 mm thick slabs are now included