Standards World

BS EN 1837:2020 pdf free download - Safety of machinery一Integral lighting of machines. 4.5 Colour quality The colour rendering properties and colour appearance of the light source(s) and/or luminaires shall be suitable for colour discrimination of the...

BS EN 1804-1:2020 pdf free download - Machines for underground mines一Safety requirements for hydraulic powered roof supports Part 1: Support units and general requirements. 6 User information 6.1 General requirements The hydraulic powered roof support manufacturer shall...

BS EN 1744-4:2021 pdf free download - Tests for chemical properties of aggregates Part 4: Determination of water susceptibility of fllers for bituminous mixtures. B.1 General This annex specifies the method for the determination of the water...

BS EN 1676:2020 pdf free download - Aluminium and aluminium alloys一Alloyed ingots for remelting一Specifications. In recording chemical analysis results, the number representing the result for any value specified in this document shall be expressed to the same...

BS EN 1555-2:2021 pdf free download - Plastics piping systems for the supply of gaseous fuels - - Polyethylene (PE) Part 2: Pipes. B.1 General This Annex specifies the geometrical, mechanical and physical properties of those polyethylene...

BS EN 1555-1:2021 pdf free download - Plastics piping systems for the supply of gaseous fuels一Polyethylene (PE) Part 1: General. 3.4.2 maximum operating pressure MOP maximum effective pressure of the fluid in the piping system, expressed in...

BS EN 1540:2021 pdf free download - Workplace exposure一Terminology. 3.1.2.24 surface area particle surface area external (geometric) surface area of a particle 3.1.3 Exposure assessment 3.1.3.1 workplace designated area or areas in which the work activities are...

BS EN 1463-2:2021 pdf free download - Road marking materials - - Retroreflecting road studs Part 2: Road test performance specifications. daylight, source of frequent dirt (such as quarries and field exits) and movement of tracked vehicles....

BS EN 1463-1:2021 pdf free download - Road marking materials一Retroreflecting road studs Part 1: Initial performance requirements. Chromaticity co-ordinates (x,y) shall be measured according to Annex B. 5.2 Durability of retro-reflectivity The assessment of durability of retro-reflectivity...

BS EN 1390:2020 pdf free download - Wood preservatives一Determination of the eradicant action against Hylotrupes bajulus (Linnaeus) larvae一Laboratory method. — voltage: 10 kV to 50 kV; — current: 0 mA to 15 mA. 5.3.11 Protective gloves. 6...