Ideal environments to prevent disk corrosion

Disks need to run in environments meeting the following requirements:
1. The corrosion rate of the copper test wafer is lower than 300 ? per month in compliance with ANSIc/ISAd-71.04 environmental corrosion G1 level.
2. The corrosion rate of the silver test wafer is lower than 200 ? per month in compliance with ANSIc/ISAd-71.04 environmental corrosion G1 level.
If disks run in environments whose corrosion level is worse than G1, disks may corrode. Environment requirements for normal disk running have been described in the product documentation.

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