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Table 2: The JIS Scale of Water Resistance

January 6, 2003
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Table 2: The JIS Scale of Water Resistance
The Japan Industrial Standards (JIS) for water resistance uses a scale from 0 to 8 to quantify the level of moisture protection built into each product. If a product has been tested against this standard, or according to the similar International Protection Code (IPX), its waterproofness designation is usually listed on the product spec sheet.
JIS-0: No special protection.
JIS-1: Vertically dripping water shall have no harmful effect (drip-resistant 1).
JIS-2: Dripping water at an angle up to 15 degrees from vertical shall have no harmful effect (drip-resistant 2).
JIS-3: Falling rain at an angle up to 60 degrees from vertical shall have no harmful effect (rain resistant).
JIS-4: Splashing water from any direction shall have no harmful effect (splash resistant).
JIS-5: Direct jetting water from any direction shall have no harmful effect (jet resistant).
JIS-6: Direct jetting water from any direction shall not enter the enclosure (watertight).
JIS-7: Water shall not enter the enclosure when it’s immersed under defined conditions (immersion-resistant).
JIS-8: The equipment is usable for continuous submersion in water under specified pressure (submersible).
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