老妇性hqmaturetube,欧洲人妻丰满av无码久久不卡 ,沈阳45岁老阿姨叫的没谁了,2012中文字幕

NALGENE起泡點測試設(shè)備DS0405-0050
無需從過濾裝置上拆除濾膜即可測試規(guī)格為50、75、90mm的NALGENE MF75過濾裝置濾膜的起泡點。測試起泡點有助于確保產(chǎn)品的完整性?？蓽y試所有直徑為50、75、90mm的NALGENE MF75 0.2、0.45um一次性過濾裝置及150ml到1l的瓶頂過濾器。適用于內(nèi)徑為1/4in.（6mm）的膠管。若適用大小為75和90mm的裝置，還包括接頭和O形環(huán)。用戶必須提供一個壓力源和校準(zhǔn)計。
訂購信息：

貨號		DS0405-0050
每箱數(shù)量		1

Test the bubble point of 50-, 75- and 90-mm NALGENE MF75 filter unit membranes without removing the membrane from the filter unit. Testing the bubble point helps assure product integrity. Can test all 50-, 75- and 90-mm-diameter NALGENE MF75 0.2-祄 and 0.45-祄 disposable filter units and bottle top filters from 150 ml to 1 L. Accepts 1/4-inch （6-mm） I.D. tubing. Adapters and O-rings included for use with 75- and 90-mm sizes. Customer must supply a pressure source and calibrated gauge.