SKC真空采样箱 Vac-U-Chamber

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

此采样箱(进样箱)具有三个接头：气体样品入口，吹洗接头，真空出口。进样箱内气体采样袋接在气体样品入口内管，箱子关上时是气密的。 个人式空气采样器于箱外接在真空出口接头，空采器启动时，将进样箱内空气抽出，此时箱内产生压降，根据气动原理，进样箱外的气体样品可直接进 入空气采样袋内而不必通过个人式空采器。

SKC真空采样箱 Vac-U-Chamber

特点：
·样品直接充入空气采样袋；利用个人式空气采样器提供负压
·外壳坚固耐压：抽真空时不会变形
·保障样品与空采器不受污染：所有样品经过的管路皆为不锈钢或铁弗龙
·具有两种真空采样箱：大的可装10公升袋，小的只可装1公升袋

SKC真空采样箱 Vac-U-Chamber

注：标准型真空采样箱若需改装为塑胶接头者，可另指明订制之。

SKC真空采样箱 Vac-U-Chamber

应用
美国环境保护局18（挥发性有机化合物-工业来源）
美国环保署0040（pohcs -固定污染源）
土壤气/蒸汽取样
美国EPA标准2042 #
ASTM d5314-92（2006）
室内空气污染监测系统的石油成分（美国EPA标准操作规程# 2102，2103，2104）
地面水试验
堆栈采样
通风研究
危险品检测
见化学事实文件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.