BS EN 12390-12:2020 pdf free.Testing hardened concrete Determination of the carbonation resistance of concrete - - Accelerated carbonation method. BS EN 12390-12 1 Scope This document quantifes the carbonation resistance of concrete using test conditions that accelerate the rate of carbonation. After a period of preconditioning, the test is carried out under controlled exposure conditions using an increased level of...
BS EN 12370:2020 pdf free
BS EN 12370:2020 pdf free.Natural stone test methods - Determination of resistance to salt crystallisation. BS EN 12370 1 Scope This document specifles a test method to assess the relative resistance of natural stones with an open porosity of greater than 5 %，measured in accordance with EN 1936, to damage caused by the rysalizaton of salts. The test is not...
BS EN 1804-1:2020 pdf free
BS EN 1804-1:2020 pdf free.Machines for underground mines一Safety requirements for hydraulic powered roof supports Support units and general requirements. BS EN 1804-1 1 Scope Thls document stpulates the safety requrements for the use of support units intended by the manufacturer. Examples of support units are: frame supports, chock supports, shield supports, paired frames and push-pull support Systems induding the components...
BS EN 1502:2020 pdf free
BS EN 1502:2020 pdf free.Inland navigation vessels - Boarding stairs. BS EN 1502 1 Scope This document applies to boarding stairs for inland navigation vessels. Boarding stairs are used on inland navigation vessels for a safe transition into ship's boats, safe disembarking to the shore or a safe crossing over onto vessels with lower decks. This document specifies safety requirements...
BS EN 1329-1:2020 pdf free
BS EN 1329-1:2020 pdf free.Plastics piping systems for soil and waste discharge within the building structure - - Unplasticized poly(vinyl chloride) (PVC-U) Specifications for pipes, fttings and the system. BS EN 1329-1 1 Scope This document specifies the requirements for solid wall pipes with smooth internal and external surfaces, extruded from the same formulation throughout the wall, fttings and the...
BS EN 1009-3:2020 pdf free
BS EN 1009-3:2020 pdf free.Machines for mechanical processing of minerals and similar solid materials - Safety Specific requirements for crushing and milling machinery. BS EN 1009-3 1 Scope This document, to be used together with EN 1009-1:2020, specifes the safety requirements and their verification for the design and construction of crushing and milling machinery for the mechanical processing in quarrying....
BS EN 197-2:2020 pdf free
BS EN 197-2:2020 pdf free.Cement Assessment and verification of constancy of performance. BS EN 197-2 1 Scope This document sperifies the scheme for the assessment and verification of constancy of performance
BS ISO 3584:2020 pdf free
BS ISO 3584:2020 pdf free.Road vehicles-Clevis couplings-Interchangeability. BS ISO 3584 1 Scope This document specifies the characteristics necessary for the mounting and interchangeability of clevis couplings on the frame (cross member, drawbeam or mounting bracket) of towing vehicles for trailers. This document is applicable to clevis couplings intended for connection to trailers equipped with a drawbar eye on the drawbar...
BS EN 17326:2020 pdf free
BS EN 17326:2020 pdf free.Surfaces for sports areas-Determination of dimensional stability of shock pads used within sports systems. BS EN 17326 1 Scope This document specifies a method for determining the dimensional stability (bowing and curling) of shockpads used within sports surface systems. 2 Normative references The following documents are referred to in the text in such a way that...
BS ISO 2648:2020 pdf free
BS ISO 2648:2020 pdf free.Wool-Determination of fibre length distribution parameters-Capacitance method. BS ISO 2648 1 Scope This document specifies a method for the determination of fibre length distribution parameters (principally mean length, expressed as Hauteur or Barbe, and the coefficient of variation of the measurement) on slivers and rovings made from combed wool or combed synthetic fibres. As the fibres...