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| 品牌 | SKC/美國 |
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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。進樣箱內氣體采樣袋接在氣體樣品入口內管，箱子關上時是氣密的。 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，將進樣箱內空氣抽出，此時箱內產生壓降，根據氣動原理，進樣箱外的氣體樣品可直接進 入空氣采樣袋內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
231-939 | 標準型真空采樣箱(或稱進樣箱)： 包含金屬接頭，可安置1至10公升空采袋(不含空采器)。(箱內大小：48.3×35.6×19.7 cm) |
231-940 | 迷你型真空采樣箱(或稱進樣箱)： 包含塑膠接頭，只適用0.5至1公升空采袋(不含采樣器)。(箱內大小：30.5×22.9×12.7 cm) |
231-937 | Teflon管，5/16英吋外徑(1/4英吋內徑)，10英呎長 |
231-924 | Teflon管，5/16英吋外徑(1/4英吋內徑)，50英呎長 |
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
應用
美國環境保護局18（揮發性有機化合物-工業來源）
美國環保署0040（pohcs -固定污染源）
土壤氣/蒸汽取樣
美國EPA標準2042 #
ASTM d5314-92（2006）
室內空氣污染監測系統的石油成分（美國EPA標準操作規程# 2102，2103，2104）
地面水試驗
堆棧采樣
通風研究
危險品檢測
見化學事實文件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.
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:
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.
