Purafil, Inc.

Data Center Contamination Control: A Case Study

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Courtesy of Courtesy of Purafil, Inc.

In order to continue to deliver relevant and timely information, we polled a number of those receiving this newsletter as to what topics they would most like to see. The overwhelming majority came back with requests for more case studies and applications. Therefore, this month’s newsletter will be the first of several cases studies we will present over the coming months. And as always, we welcome your input on topics for future newsletters.

A data center in China began experiencing failures due to corrosion in RoHS-compliant  and the owners wanted to improve the indoor environment to prevent future failures. Previous reactivity (corrosion) monitoring using Purafil’s

Corrosion Classification Coupons (CCCs) had indicated high levels of sulfur contamination in the outdoor ventilation air (see pictures above) and in the data center itself. The copper severity level as determined using the International Society for Automation’s (ISA) Standard 71.04-1985 was generally

G1 – Mild (<300Å / 30 days); however, the corresponding silver severity levels was a high

G2 – Moderate/Harsh (300-999 angstroms [Å] / 30days). The average silver corrosion rate was almost 4½ times higher than that of the copper and the owners wanted to reduce both the copper and silver corrosions rates to (at least) a severity level of

G1 – Mild 

(<300Å / 30 days) and preferably reduce these corrosion rates to their own internal specification of <100Å / 30 days for both the copper and silver corrosion rates. Read More

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