BS ISO 9642:2020 pdf free.Cinematography Time and control code for 24,25 and 30 frames per second motionpicture film systems Specifications. BS ISO 9642 1 Scope This document specities digital code for mats and modulation methods br motion-picture bum to be used for timing, control, editing and synchronization purposes. This document also specifies the relationship of the codes to the motion...
BS EN 81-50:2020 pdf free
BS EN 81-50:2020 pdf free.Safety rules for the construction and installation of lifts Examinations and tests Design rules, calculations, examinations and tests of lift components. BS EN 81-50 These tests have the purpose of verifying the strength of the mechanical locking components and the electrical components. The sample of the locking device in its normal operating position is controlled by...
BS 8603:2020 pdf free
BS 8603:2020 pdf free.Wheelchair transport passport scheme Code of practic. BS 8603 Introduction Living with a disability can provide many challenges to individuals, their families and carers throughout their everyday lives. In some circumstances a wheelchair might be beneficial to assist with mobility The design and function of a wheelchair and seating system, however, can vary widely depending on the...
BS 148:2020 pdf free
BS 148:2020 pdf free.Recycled mineral insulating oil for transformers and switchgear Specification. BS 148 Scope This British Standard specifies requirements for recycled oxidation inhibited and uninhibited mineral insulating oils, as delivered, for use in transformers, switchgear and similar electrical equipment in which oil is required as an insulant and/or for heat transfer. Oils with and without additives are within the...
BS EN 84-2020 pdf free
BS EN 84-2020 pdf free.Durability of wood and wood-based products Accelerated ageing of treated wood prior to biological testing Leaching procedure. BS EN 84 1 Scope This document specifies a method for leaching, applicable to test specimens of wood or wood-based products which are subsequently subjected to biological tests. This document is applicable to: a) the pre-conditioning of test specimens...
BS EN 81-73:2020 pdf free
BS EN 81-73:2020 pdf free.Safety rules for the construction and installation of lifts - Particular applications for passenger and goods passenger lifts Behaviour of lifts in the event of fire. BS EN 81-73.I Scope This document specifies the special provisions and safety rules describing the behaviour of lifts in the event of fire in a building, on the basis of...
BS EN 71-4:2020 pdf free
BS EN 71-4:2020 pdf free.Safety of tovs Experimental sets for chemistry and related activities. BS EN 71-4 This document specifies requirements for the maximum amount, and in some cases, the maximum concentration of certain substances and mixtures used in experimental sets for chemistry and related activities. These substances and mixtures are: — those classified as hazardous by the EC-legislation applying...
IEEE 82-2002 pdf free
IEEE 82-2002 pdf free.IEEE Standard Test Procedure for Impulse Voltage Tests on Insulated Conductors. Insulated conductors in service are subjected to voltage surges from lightning. switching, and other sources. These surges vary widely in wave shape, magnitude. and frequency of occurrence. Laboratory tests cannot duplicate the wide variety of surges met in service. Standard test procedures. however, make it possible...
IEEE 475-2000 pdf free
IEEE 475-2000 pdf free.IEEE Standard Measurement Procedure for Field Disturbance Sensors 300 MHz to 40 GHz. Abstract: Test procedures for microwave field disturbance sensors to measure radio frequency RF) radiated field strength of the fundamental frequency, harmonic frequencies, near field power flux density, and nonharmonic spurious emissions of sensors operating within the frequency range of 300 MHz to 40 GHz...
IEEE 1277-2000 pdf free
IEEE 1277-2000 pdf free.IEEE Standard General Requirements and Test Code for Dry-Type and Oil-Immersed Smoothing Reactors for DC Power Transmission. Abstract: The electrical, mechanical, and physical requirements of oil-immersed and dry-type air core smoothing reactors for high-voltage direct current( HVDC)applications are specified. Test code is defined and appropriate technical background information is presented or identified. Keywords: construction, dry-type air core,...