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Water Resistant mark. Water Resistant is a common mark stamped on the back of wrist watches to indicate how well a watch is sealed against the ingress of water. It is usually accompanied by an indication of the static test pressure that a sample of newly manufactured watches were exposed to in a leakage test. The test pressure can be indicated ...
IP65 touchscreen display IP65 LED lamp. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures against ...
Ethanol fuel mixtures have "E" numbers which describe the percentage of ethanol fuel in the mixture by volume, for example, E85 is 85% anhydrous ethanol and 15% gasoline. Low-ethanol blends are typically from E5 to E25, although internationally the most common use of the term refers to the E10 blend. Blends of E10 or less are used in more than ...
Nearly 1.75 ounces of water seeped into our test pair during the waterproof test. (If you want a truly waterproof option, choose the Gore-Tex model.) But when you won’t be tromping calf-deep in ...
Waterproof wristlet watch. An unrestored and original WWW manufactured by Eterna. Eterna produced an estimated 5,000 of the total 145,000 delivered. The watch wristlet waterproof was a type of watch manufactured in Switzerland and issued to British military forces after 1945. The (WWW) standard for wristwatches by the Ministry of Defence ...
Polytetrafluoroethylene is used as a non-stick coating for pans and other cookware. It is non-reactive, partly because of the strength of carbon–fluorine bonds, so it is often used in containers and pipework for reactive and corrosive chemicals. Where used as a lubricant, PTFE reduces friction, wear, and energy consumption of machinery.