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So that practical clothing may be described conveniently by a range of small integers, the unit of thermal resistance, to be called the “tog”, is the resistance that will maintain a temperature difference of 0.1°C. with a flux of 1 watt per square metre, or in more practical terms, 10°C. with a flux of 1 watt per square decimetre.
The fill power of a down article can be restored by washing the article in a washing machine with or without detergent (mild) and dried in a home dryer. Tennis balls can be added to help fluff the down. Alternatively, the washing can be skipped and the down article can be placed in the dryer with a damp rag for 10–20 minutes.
This enables the purchaser to select a duvet appropriate to the season: the higher the tog rating, the warmer the duvet. A few manufacturers have marketed combined duvet sets consisting of one 4.5 tog and one 9.0 tog. The light-weight one is for summer and the medium one for spring and autumn; snapped together, 13.5 togs is designed for winter.
If the interior of a home is at 20 °C and the roof cavity is at 10 °C then the temperature difference is 10 °C (or 10 K). Assuming a ceiling insulated to RSI 2.0 (R = 2 m 2 ⋅K/W), energy will be lost at a rate of 10 K / (2 K⋅m 2 /W) = 5 watts for every square meter (W/m 2) of ceiling. The RSI-value used here is for the actual insulating ...
It also developed the tog as an easy-to-follow measure of the thermal resistance of textiles, as an alternative to the SI unit of m 2 K/W. The BCRA merged with the British Rayon Research Association to form the Cotton, Silk, and Man-Made Fibres Research Association in 1961.
Microsoft Deployment Toolkit (MDT; originally released as Business Desktop Deployment in August 2003 [2] [3]) is a free software package from Microsoft for automating the deployment of Windows 10, Server 2019 and older Windows Server and desktop operating systems. [4]
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Textile fibers, threads, yarns and fabrics are measured in a multiplicity of units.. A fiber, a single filament of natural material, such as cotton, linen or wool, or artificial material such as nylon, polyester, metal or mineral fiber, or human-made cellulosic fibre like viscose, Modal, Lyocell or other rayon fiber is measured in terms of linear mass density, the weight of a given length of ...