$BS EN ISO 16890-4-2016 Air filters for general ventilation Conditioning method to determine the minimum fractional test efficiency《全面通风用空气过滤器采用调节法测定最小分级试验效率》.pdf$ 下载积分： 10000 积分

BS EN ISO 16890-4-2016 Air filters for general ventilation Conditioning method to determine the minimum fractional test efficiency《全面通风用空气过滤器采用调节法测定最小分级试验效率》.pdf

下载积分： 10000 积分

BS EN ISO 16890-3-2016 Air filters for general ventilation Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured《全面通风用空气过滤器 .pdf

$BS EN ISO 16890-2-2016 Air filters for general ventilation Measurement of fractional efficiency and air flow resistance《全面通风用空气过滤器分级效率和空气流动阻力测量》.pdf$ 下载积分： 10000 积分

BS EN ISO 16890-2-2016 Air filters for general ventilation Measurement of fractional efficiency and air flow resistance《全面通风用空气过滤器分级效率和空气流动阻力测量》.pdf

下载积分： 10000 积分

BS EN ISO 16890-1-2016 Air filters for general ventilation Technical specifications requirements and classification system based upon particulate matter efficiency (ePM)《全面通风用空气过滤器.pdf

下载积分： 10000 积分

BS EN ISO 16871-2003 Plastics piping and ducting systems - Plastics pipes and fittings - Method for exposure to direct (natural) weathering《塑料管道系统塑料管道和配件直接(自然)风化法》.pdf

下载积分： 10000 积分

BS EN ISO 16862-2003 Paints and varnishes - Evaluation of sag resistance《涂料和清漆抗下垂性评估》.pdf

下载积分： 10000 积分

BS EN ISO 16859-3-2015 Metallic materials Leeb hardness test Calibration of reference test blocks《金属材料里氏硬度试验标准硬度块的标定》.pdf

下载积分： 10000 积分

BS EN ISO 16859-2-2015 Metallic materials Leeb hardness test Verification and calibration of the testing devices《金属材料里氏硬度试验试验装置的验证和校准》.pdf

下载积分： 10000 积分

BS EN ISO 16859-1-2015 Metallic materials Leeb hardness test Test method《金属材料里氏硬度试验试验方法》.pdf

下载积分： 10000 积分

BS EN ISO 16852-2016 Flame arresters Performance requirements test methods and limits for use《灭火器使用限制试验方法和性能要求》.pdf

下载积分： 10000 积分

BS EN ISO 16851-2013 Textile conveyor belts Determination of the net length of an endless (spliced) conveyor belt《织物输送带环式(拼接)输送带的净长度测定》.pdf

下载积分： 10000 积分

BS EN ISO 16841-2014 Steel wire ropes Pulling eyes for rope installation Types and minimum requirements《钢丝绳绳索安装的拉孔类型和最低要求》.pdf

下载积分： 10000 积分

BS EN ISO 16834-2012 Welding consumables Wire electrodes wires rods and deposits for gas shielded arc welding of high strength steels Classification《焊接消耗品高强度钢的气体保护电弧焊用焊丝电极焊丝焊条和沉.pdf

$BS EN ISO 16828-2014 Non-destructive testing Ultrasonic testing Time-of-flight diffraction technique as a method for detection and sizing of discontinuities《无损检测超声波检测作为不连续检测和评价方法.pdf$ 下载积分： 10000 积分

BS EN ISO 16828-2014 Non-destructive testing Ultrasonic testing Time-of-flight diffraction technique as a method for detection and sizing of discontinuities《无损检测超声波检测作为不连续检测和评价方法.pdf

下载积分： 10000 积分

BS EN ISO 16827-2014 Non-destructive testing Ultrasonic testing Characterization and sizing of discontinuities《无损检测超声波检测不连续性的特性和尺寸》.pdf

下载积分： 10000 积分

BS EN ISO 16826-2014 Non-destructive testing Ultrasonic testing Examination for discontinuities perpendicular to the surface《无损检测超声波检测垂直于表面的不连续的检测》.pdf

下载积分： 10000 积分

BS EN ISO 16823-2014 Non-destructive testing Ultrasonic testing Transmission technique《无损检测超声波检测传输技术》.pdf

下载积分： 10000 积分

BS EN ISO 16812-2007 Petroleum petrochemical and natural gas industries - Shell-and-tube heat exchangers《石油、石化和天然气工业壳管式热交换器》.pdf

下载积分： 10000 积分

BS EN ISO 16811-2014 Non-destructive testing Ultrasonic testing Sensitivity and range setting《无损检测超声波检测灵敏度和范围设置》.pdf

下载积分： 10000 积分