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
格式:pdf
大?。?span class="single-tag-height">32KB
頁數(shù): 2頁
Shanghai OUCE Technology Co., Ltd EN837-壓力表 CE 認證 壓力表因為其設(shè)計壓力超過 0.5bar 的設(shè)備,故屬于歐盟壓力設(shè) 備 CE 認證指令 PED 的范疇,Pressure Equipment Directive 具體指 令為: 97/23/EC。壓力表 CE 認證需要根據(jù)相關(guān)標準做檢測后,才能 簽發(fā) CE 證書,主要協(xié)調(diào)標準為: EN837。 EN837-1 壓力表 .第 1 部分 :波登壓力表 .尺寸 ,測量技術(shù) ,要求和 檢驗 EN837-1:1998 Pressure gauges. Bourdon tube pressure gauges. Dimensions, metrology, requirements and testing Description: Pressure gauges, Bourdon pressure