BS EN 17414-1:2020 pdf free.District cooling pipes一Factory made flexible pipe system,Classification, general requirements and test methods. BS EN 17414-1 This document specifies requirements and test methods for factory made thermally insulated flexible pipe-in-pipe assemblies for directly buried district cooling distribution systems, comprising a service pipe and a casing of polyethylene. The pipe assembly can also include the following additional elements:measuring...
BS EN 17333-2:2020 pdf free
BS EN 17333-2:2020 pdf free.Characterisation of one component foam,Expansion characteristics. BS EN 17333-2 This document specifies test methods for the evaluation of the expansion properties for moisture curing，self-curing activatable or water drying foams dispensed from single pressurized foam containers.This document does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility...
BS EN 17333-3:2020 pdf free
BS EN 17333-3:2020 pdf free.Characterisation of one component foam,Application. BS EN 17333-3 This document specifies test methods for the evaluation of the application properties for moisture curing, self-curing activatable or water drying foams dispensed from single pressurized foam containers. This document does not purport to address all of the safety concerns, if any, associated with its use. It is the...
BS EN 17339:2020 pdf free
BS EN 17339:2020 pdf free.Transportable gas cylinders一Fully wrapped carbon composite cylinders and tubes for hydrogen. BS EN 17339 This document specifies minimum requirements for the materials, design, construction,prototype testing and routine manufacturing inspections of composite gas cylinders and tubes for compressed hydrogen. NOTE1 Unless specified in the text, for the purposes of this document, the word "cylinder" includes tubes. This...
BS EN 17375:2020 pdf free
BS EN 17375:2020 pdf free.Electronic cigarettes and e-liquids -Reference e-liquids. BS EN 17375 4.3.1 To perform tests, there are two reference e-liquids (see 4.3.2 and 4.3.3) and their composition is described in 4.3.4. 4.3.2 A reference e-liquid, termed 70/30, which contains propylene glycol (PG) (4.2.1) and glycerol (vegetable glycerine) (VG) (4.2.2) in a ratio of 7:3 respectively.4.3.3 A reference e-liquid,...
BS EN 6046:2020 pdf free
BS EN 6046:2020 pdf free.Aerospace series一Bearing, spherical, plain,in corrosion resisting steel- Narrow series一Dimensions and loads - Inch series. BS EN 6046 This European standard specifies the characteristics of inch based spherical plain bearing, metal to metal, in corrosion resisting steel, narrow series.They are intended for use in fixed or moving parts of the aircraft structure and their control mechanisms.They shall...
BS EN 1749:2020 pdf free
BS EN 1749:2020 pdf free.Classification of gas appliances according to the method of supplying combustion air and of evacuation of the combustion products
BS EN 4855-01:2020 pdf free
BS EN 4855-01:2020 pdf free.Aerospace series — ECO efficiency of catering equipment.General conditions. BS EN 4855-01 This document defines the test procedures and calculations to determine the ECO efficiency of the following catering equipment installed in an aircraft:一Chilling equipment (with freeze function); -Ovens (steam and convection ovens); -Beverage makers
BS ISO 22766:2020 pdf free
BS ISO 22766:2020 pdf free.Plastics一Determination of the degree of disintegration of plastic materials in marine habitats under real field conditions. BS ISO 22766 This document specifies test methods for the determination of the degree of disintegration of plastic materials exposed to marine habitats under real field conditions. The marine areas under investigation are the sandy sublittoral and the sandy eulittoral...
BS ISO 23044:2020 pdf free
BS ISO 23044:2020 pdf free.Guidelines for softening and desalination of industrial wastewater for reuse. BS ISO 23044 Water quality indicators should include TSS, TOC, COD, pH，temperature, TDS, the species and concentrations of ions.The product water from wastewater softening and desalination processes is recommended to be reused for urban non-potable water, environmental water, and as pure or ultrapure water for cooling...