There is a water and object ingress standard at least in Europe, IP XX, where the first number stands for objects and the second for water, I think it was something like IP 00 means you can get an industry standard finger in there, and water that runs in runs out and IP 67 means that dust has to be below so many microns and you can pressure wash the item and water won't get in.. This is just from memory so feel free to correct me!
Anyway back to the point if it doesn't say IP XX on the label it isn't weather or water resistant!
Agree. That is the standard most commonly used in America as well as internationally. Most of my flashlights are IPX7
Camera manufacturers simply choose to not use them.
IPX Standard Code Meanings
IPX-0 No special protection
IPX-1 Protected against falling water Equivalent to 3-5mm rainfall per minute for a duration of 10 minutes.
IPX-2 Protected against falling water when tilted up to 15 degrees – Same as IPX-1 but unit is tested in 4 fixed positions – tilted 15 degrees in each direction from normal operating position.
IPX-3 Protected against spraying water – Water spraying up to 60 degrees from vertical at 10 liters/min at a pressure of 80-100kN/m2 for 5 min.
IPX-4 Protected against splashing water – Same as IPX-3 but water is sprayed at all angles.
IPX-5 Protected against water jets – Water projected at all angles through a 6.3mm nozzle flow rate of 12.5 liters/min at a pressure of 30kN/m2 for 3 minutes from a distance of 3 meters.
IPX-6 Protected against heavy seas – Water projected at all angles through a 12.5mm nozzle at a flow rate of 100 liters/min at a 100kN/m2pressure for 3 minutes from a distance of 3 meters.
IPX-7 Protected against water immersion – Immersion for 30 minutes at a depth of 1 meter.
IPX-8 Protected against water submersion – Equipment suitable for continual submersion in water under conditions as specified by manufacturer.