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Our High Purity Gases:

We have many years of experience in providing ultra high purity gases. We assure you a reliable supply of high quality products. Our comprehensive line of pure gases assures the proper purity of your specific application.

Pure gases from Sun Air are classified by grade, since common purity designations such as Prepurified or High Purity vary among different suppliers and therefore have little meaning. Please read the following table for more information about the grading of our gases.

Grade

Purity

Total Impurities

   7N

99.99999%

   100 ppb

   6N

99.9999%

      1 ppm

 5N5

99.9995%

      5 ppm

   5N

99.999%

    10 ppm

 4N5

99.995%

    50 ppm

   4N

99.99%

  100 ppm

 3N5

99.95%

  500 ppm

   3N

99.9%

1000 ppm

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