ANSI/ISA-71.04-2013 is one of the most widely used industrial standards for the protection of electronic equipment, covering various environmental conditions affecting electronic equipment, including process measurement and control systems, data communications and IT hardware, and office electronics. The increasing complexity and decreasing size of electrical components, paired with the introduction of RoHS Lead-Free Initiatives made this standard necessary. Within this standard are the ISA Environmental Classifications. These classifications are used to define an environment’s severity. This corrosion is measured in angstroms, which is a unit of length equal to one hundred-millionth of a centimeter, 10−10 meter. This data is measured in such tiny increments because even small amounts of corrosion can cause failure in sensitive electronics. This video explains what each ISA level indicates about how your environment is impacting your electronics.
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