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2. Extended Cold Weather Clothing System - Wikipedia

   en.wikipedia.org/wiki/Extended_Cold_Weather...

   Generation III Extended Cold Weather Clothing System ECWCS levels 7 (left) and 5 (right). The Extended Cold Weather Clothing System (ECWCS / ˈ ɛ k w æ k s /) is a protective clothing system developed in the 1980s by the United States Army Natick Soldier Research, Development and Engineering Center, Natick, Massachusetts.

3. Clothing insulation - Wikipedia

   en.wikipedia.org/wiki/Clothing_insulation

   Clothing insulation is the thermal insulation provided by clothing. [1] [2] Even if the main role of clothing is to protect from the cold, protective clothing also exists to protect from heat, such as for metallurgical workers or firemen. As regards thermal comfort, only the first case is considered.

4. Tog (unit) - Wikipedia

   en.wikipedia.org/wiki/Tog_(unit)

   There is also a US clothing unit, the clo, equivalent to 0.155 R SI or 1.55 tog, described in ASTM D-1518. [7] A tog is 0.1⋅m 2 ⋅K/W. In other words, the thermal resistance in togs is equal to ten times the temperature difference (in °C) between the two surfaces of a material, when the flow of heat is equal to one watt per square metre. [1]

5. Polyester - Wikipedia

   en.wikipedia.org/wiki/Polyester

   A polyester shirt Close-up of a polyester shirt SEM picture of a bend in a high-surface area polyester fiber with a seven-lobed cross section A drop of water on a water resistant polyester Polyesters can contain one ester linkage per repeat unit of the polymer, as in polyhydroxyalkanoates like polylactic acid , or they may have two ester ...

6. Relative thermal index - Wikipedia

   en.wikipedia.org/wiki/Relative_thermal_index

   The RTI is the rounded temperature in degrees C, at which the properties of B have decreased to 50 percent of their initial value in about the same amount of time (correlation time) than it takes for A at its own RTI value. A maximum correlation time of 60.000 hours is considered acceptable for many electrical applications, however it may also ...

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