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The IP69K standard was originally developed for road vehicles—especially those that need regular intensive cleaning (dump trucks, concrete mixers, etc.)—but it also finds use in other areas, such as [[food processing]] machinery and [[car wash]] systems. It was superseded by ISO 20653:2013 Road Vehicles-Degrees of protection (IP code),<ref>ISO 20653:2013 Road Vehicles-Degrees of protection (IP code) Protection of electrical equipment against foreign objects, water and access</ref> and complemented by the addition of a level 9 water ingress testing to IEC 60529, which includes essentially the same spray test as IP69K, but also includes, in Figure 10 of the standard, a drawing for a test fixture designed to verify the correct water pressure.
The test specifies a spray nozzle that is fed with {{cvt|80|C}} water at {{cvt|8|–|10|MPa|bar psi|lk=on}} and a flow rate of {{convert|14|–|16|L/min|USgal/min}}. The nozzle is held 10–15 cm from the tested device at angles of 0°, 30°, 60° and 90° for 30 seconds each. The test device sits on a turntable that completes a rotation once every 12 seconds (5 [[Revolutions per minute|rpm]]). The IPx9 specification details a freehand method for testing larger specimens that will not fit on a turntable (see table above). The free hand method also requires (at least) one additional minute of spray time (1 min/m<sup>2</sup>, 3 min. minimum). The test distance also increases to .175 m (0.15–0.2 m per section 14.2.9).
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