Acoustics. Laboratory measurement of the reduction of transmitted impact noise by floor coverings on a small floor mock-up - Heavyweight compact floor1 Scope This part of ISO 16251 specifies a laboratory measurement method to determine the improvement of impact sound insulation by a floor covering when laid on a standard concrete floor mock up and excited by a standard tapping machine. The method is restricted to soft, flexible floor coverings, which transmit impact sound mainly locally into the floor, i. e. through the area close to the points of excitation, so that the size of the flooring

Crises present organizations with complex and difficult challenges that may have profound and far-reaching consequences

ISO 13666 defines terms relating to ophthalmic optics

Duration of the test

Why should you use BS EN IEC 60076‑22‑1‒Transformer protective devices

enabling the accurate determination of nitric and ammoniacal nitrogen in fertilizers for stimulation in root growth and reduced acidification in agricultural applications

Cables with galvanized steel pliable wire armouring

PD CEN/TS 17176-3 specifies the test parameters for the test methods referred to in PD CEN/TS 17176-3

the types of specimens

This standard gives general recommendations for tree work

BS 770-8:1987 has made some technical changes in method chiefly in the use of copper sulphate and in the use of boric acid as the collecting agent as compared to the previous editions BS 770:1963

calculations and estimates

This part of BS 7121 gives recommendations for the safe use of general purpose bridge and gantry cranes which terminate with a hook