SKC真空采樣箱 Vac-U-Chamber

The SKC Vac-U-Chamber Guarantees The Purity and Integrity of Samples 

此采樣箱(進樣箱)具有三個接頭：氣體樣品入口，吹洗接頭，真空出口。進樣箱內(nèi)氣體采樣袋接在氣體樣品入口內(nèi)管，箱子關(guān)上時是氣密的。 個人式空氣采樣器于箱外接在真空出口接頭，空采器啟動時，將進樣箱內(nèi)空氣抽出，此時箱內(nèi)產(chǎn)生壓降，根據(jù)氣動原理，進樣箱外的氣體樣品可直接進 入空氣采樣袋內(nèi)而不必通過個人式空采器。

SKC真空采樣箱 Vac-U-Chamber

特點：
·樣品直接充入空氣采樣袋；利用個人式空氣采樣器提供負壓
·外殼堅固耐壓：抽真空時不會變形
·保障樣品與空采器不受污染：所有樣品經(jīng)過的管路皆為不銹鋼或鐵弗龍
·具有兩種真空采樣箱：大的可裝10公升袋，小的只可裝1公升袋

SKC真空采樣箱 Vac-U-Chamber

注：標準型真空采樣箱若需改裝為塑膠接頭者，可另指明訂制之。

SKC真空采樣箱 Vac-U-Chamber

應(yīng)用
美國環(huán)境保護局18（揮發(fā)性有機化合物-工業(yè)來源）
美國環(huán)保署0040（pohcs -固定污染源）
土壤氣/蒸汽取樣
美國EPA標準2042 #
ASTM d5314-92（2006）
室內(nèi)空氣污染監(jiān)測系統(tǒng)的石油成分（美國EPA標準操作規(guī)程# 2102，2103，2104）
地面水試驗
堆棧采樣
通風(fēng)研究
危險品檢測
見化學(xué)事實文件1665。

The Vac-U-Chamber is a rigid air sample box that directly fills a sample bag using negative pressure provided by an air sample pump. The Vac-U-Chamber is available in four sizes and will not collapse under pressure from the vacuum. Use the Vac-U-Chamber for soil gas/vapor sampling, groundwater testing, stack sampling, ventilation studies, hazmat testing, and U.S. EPA Methods 18 and 0040.

• Allows direct filling of SKC air sample bags
  • Uses negative pressure provided by most personal air sample pumps
  • Designed for SKC sample bags
    
    
• Protects sample and pump from contamination
  • Sample does not pass through the pump
  • Sample contacts only inert tubing and bag
    
    
• Rugged heavy-duty construction
  • Will not collapse under vacuum
  • Airtight
    
    
• In four sizes
  • Small for sample volumes up to 1 liter
  • Large for sample volumes up to 8 liters
  • Extra large for sample volumes up to 10 liters
  • Jumbo for sample volumes up to 25 liters
    
    
• Sample line extends from contaminant source through case to bag

The SKC Vac-U-Chamber
For Convenient, Reliable Bag Sampling

The SKC Vac-U-Chamber is a rigid air sample box that allows sample bags to be filled directly by using negative pressure provided by most personal air sample pumps. Because the sample does not pass through the pump, both pump and sample contamination are eliminated. All surfaces in contact with the sample are constructed of inert materials. The Vac-U-Chamber’s rigid walls will not collapse under vacuum conditions.

Using the Vac-U-Chamber 

The Vac-U-Chamber is equipped with three 1/4-inch OD fitting ports for inflating sample bags:

• Sample inlet port for connecting to the sample line or gas source
  
  
• Purge port for purging the air prior to sampling or when preparing the bag for a standard
  
  
• Vacuum port for inflating a bag

An air sample bag is connected to the inside sample inlet port and the chamber is closed, providing an airtight seal. An air sample pump is connected to the outside vacuum outlet port. When activated, the pump evacuates air from inside the chamber. The sample bag inflates as a result of the interior pressure drop. This pneumatic technique allows the air sample to enter the bag directly without passing through the pump, protecting the pump from sample contaminants and the sample from pump contaminants.

The Vac-U-Chamber is available in other sizes and fittings as a custom order. Contact your SKC representative for more information.