NBN-EN 50057-1993 7500 Electrical apparatus for the detection and measurement of combustible gases Performance requirements for Group II apparatus indicating up to 100 % lower expl.pdf

相关资源

IRS 70778-2-2018 Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges.pdf

IRS 70712-2018 Rail defects.pdf

IRS 50596-6-2018 Conditions for coding intermodal loading units in combined transport combined transport lines and wagons.pdf

IRS 50596-5-2018 Transport of road vehicles on wagons-Technical Organisation-Conveyance of semi-trailers with P coding or N coding on recess wagons.pdf

IESNA TM-23-2017 Lighting Control Protocols.pdf

IESNA RP-2-2017 Recommended Practice for Retail Lighting.pdf

ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

ITU-R RAPPORT M 763-3 FRENCH-1990 Signal level variation due to multipath effects and blockage by ship-s superstructure in maritime mobile-satellite service lin.pdf

ITU-R RAPPORT M 739-1 FRENCH-1986 Interference due to intermodulation products in the land mobile service between 25 and 100 MHz《由于互调产物在陆地移动服务25和100 MHz之间产生的干扰》.pdf

ITU-R RAPPORT M 319-7 FRENCH-1990 Characteristics of equipment and principles governing the assignment of frequency channels between 25 and 100 MHz for land mob.pdf

猜你喜欢

EN ISO 19232-5-2013 en Non-destructive testing - Image quality of radiographs - Part 5 Determination of the image unsharpness value using duplex wire-type image quality indicators《.pdf

EN ISO 19238-2017 en Radiological protection - Performance criteria for service laboratories performing biological dosimetry by cytogenetics.pdf

EN ISO 19250-2013 en Water quality - Detection of Salmonella spp 《水质 沙门氏菌属的检测》.pdf

EN ISO 19258-2011 en Soil quality - Guidance on the determination of background values《土质 背景值的测定指南》.pdf

EN ISO 19285-2017 en Non-destructive testing of welds - Phased array ultrasonic testing (PAUT) - Acceptance levels.pdf

EN ISO 19288-2016 en Welding consumables - Solid wire electrodes solid wires and rods for fusion welding of magnesium and magnesium alloys - Classification《焊接用实心焊丝 对镁及镁合金的熔焊分类实心焊丝和.pdf

EN ISO 19334-2011 en Binders for paints and varnishes - Gum rosin - Gas-chromatographic analysis《涂料和清漆用粘合剂 松香 气相色谱分析 涂料和清漆用粘合剂 松香 气相色谱分析 涂料和清漆用粘合剂 松香 气相色谱分析涂料和清漆用粘合剂 .pdf

EN ISO 19340-2017 en Water quality - Determination of dissolved perchlorate - Method using ion chromatography (IC).pdf

EN ISO 19343-2017 en Microbiology of the food chain - Detection and quantification of histamine in fish and fishery products - HPLC method.pdf