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e standard aims to provide users more detailed information than vague marketing terms such as waterproof. For example, a cellular phone rated at IP67 is "dust resistant" and can be "immersed in 1 meters of freshwater for up tt rated IP22 is protected against insertion of fingers and will not become unsafe during a specified test in which it is exposed to vertically or nearly vertically dripping water. IP22 or IP2X are typical minimum requirements for the design of electrical accessories for indoor use.

The digits indicate conformity with the conditions summarized in the tables below. The digit 0 is used where no protection is provided. The digit is replaced with the letterlLiquid ingress protecton !! Third digit: Mechanical iplementary let! Level sized !! Effective against {digit: Liquid ingress protecton !! Third digit: Mechanical iplementary let! Level sized !! Effective against !! Descrip |- ! Level sized !! Effective against !! Description |- !X | X means there > {{convert|2.5|mm|abbr=l} || Tools, thick |- |No protection |A | > 2.5 mm (0.098 in) at distance of {{cll not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 meter (3 ft 3 in) of submersion). || Test duration: 30 minutes.Cite error: A <ref> tag is missing the closing </ref> (see the help page). Enclosures conforming with ISO 20653:2013 must not only be dust-tight (IP6X), but also able to withstand high-pressure and steam cleaning.

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 It was superseded by ISO 20653:2013 Road Vehicles-Degrees of protection (IP code), and complemented by the addition of a level 9 water ingress testing to IEC 60529, which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.

Test setup

The test specifies a spray nozzle that is fed with 80 °C (176 °F) water at 8–10 MPa (80–100 bar; 1,200–1,500 psi) and a flow rate of 14–16 litres per minute (3.7–4.2 US gal/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 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, 3 min. minimum). The test distance also increases to .175 m (0.15–0.2 m per section 14.2.9).

United States (NEMA rating)

In the U.S., the National Electrical Manufacturers Association defines NEMA enclosure types in NEMA standard number 250. The following table outlines which IEC 60529 IP code each respective NEMA guideline meets. Ratings between the two standards are not directly equivalent: NEMA ratings also require additional product features and tests (such as functionality under icing conditions, enclosures for hazardous areas, knock-outs for cable connections and others) not addressed by IP ratings.

Waterproofness without IP rating

There is a common misconception that smartphones that have no IP rating are equal to having no water resistance at all. Due to the high cost of getting IP certified, many companies make products waterproof without certifying them to reduce overhead costs.

See also

• Appliance classes
• EN 62262 – IK code on resistance to mechanical impacts
• MIL-STD-810
• U.S. Military connector specifications for military equivalents
• Water Resistant mark on wrist watches

References

1. Cite error: The named reference NE Laser was invoked but never defined (see the help page).
2. IEC 60529 2013, p. 27. sfn error: no target: CITEREFIEC_605292013 (help)
3. ISO 20653:2013 Road Vehicles-Degrees of protection (IP code) Protection of electrical equipment against foreign objects, water and access
4. "NEMA Enclosure Types" (PDF). National Electrical Manufacturers Association. November 2005. pp. 7–9. Retrieved 10 January 2017.
5. Jhaveri, Aakash (2019-03-22). "Explained: Smartphone Waterproofing and IP Ratings". Mashable India. Retrieved 2022-04-09.

External links

• 2004 version of the standard

• Certification marks
• Electrical enclosures
• IEC 60529