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IACDuctSilences管道消声器

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IAC Duct Silencer Catalogue A complete range of engineered noise control for air-handling systems www.iac-acoustics.com Why Laboratory Tested Silencers Are Best Rectangular and cylindrical duct silencers from IAC Acoustics provide effective and predictable noise reduction at substantial savings over other methods due to our products being laboratory developed and tested under controlled conditi

EN837-压力表CE认证

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Shanghai OUCE Technology Co., Ltd EN837-压力表 CE 认证 压力表因为其设计压力超过 0.5bar 的设备,故属于欧盟压力设 备 CE 认证指令 PED 的范畴,Pressure Equipment Directive 具体指 令为: 97/23/EC。压力表 CE 认证需要根据相关标准做检测后,才能 签发 CE 证书,主要协调标准为: EN837。 EN837-1 压力表 .第 1 部分 :波登压力表 .尺寸 ,测量技术 ,要求和 检验 EN837-1:1998 Pressure gauges. Bourdon tube pressure gauges. Dimensions, metrology, requirements and testing Description: Pressure gauges, Bourdon pressure

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