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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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