Do you require the for formal compliance, or a free summary chart for quick reference?

Understanding the numbers is one thing, but understanding the is another. The standard is highly specific. For example, testing for IPX7 (temporary immersion) is not a cumulative test. A product rated IPX7 has passed immersion in 1 meter of water. However, a product rated IPX6 (powerful water jets) has not been tested for immersion and cannot be considered waterproof. The conditions of pressure and time are defined under specified laboratory conditions that must be followed exactly for a rating to be valid.

Protection against solid particles (dust, dirt, tools).

By standardizing these definitions, the industry moves away from vague, marketing-driven terms like "waterproof" or "dustproof," replacing them with quantifiable, testable engineering data. Decoding the IP Code Structure