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# Manufacturing/Tech terms

## English translation: horizontal stretch

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
 German term or phrase: Reckstrecke English translation: horizontal stretch

 22:51 Aug 22, 2001
German to English translations [PRO]
Tech/Engineering
 German term or phrase: Manufacturing/Tech terms Reckstrecke Das hergestellte Produkt wird flachgelegt und anschließend einer Reckstrecke zugeführt Does anyone know what measurement is used for porosity according to Gurley?
 Elise HendrickUnited States Local time: 13:01
 horizontal stretch Explanation:Unit of measurement for porosity or air permeability according to Gurley: cubic feet of air per minute per square foot at 0.5 inches of water pressure
Selected response from:

Poornima Iyengar
Local time: 22:31
 Thanks! This is exactly the information I was looking for.4 KudoZ points were awarded for this answer

 Alexander Schleber
nahorizontal stretch
 Poornima Iyengar
nastretch extent

20 mins
stretch extent

Explanation:

Densometers are the accepted standard for measuring the porosity, air-permeability or air-resistance of sheet-like materials such as papers, wovens, plastics and membranes. All Densometers measure the time required for a given volume of air (25cc to 400cc) to flow through a standard area of material being tested under light uniform pressure.

So it's obvious from the definition that the unit is seconds per square millimeter (metric) or second per square inch (English) - s/mm2 or s/in2

Reference: http://www.gpi-test.com/4110.htm
 Marcus MalabadCanadaLocal time: 19:01Native speaker of: English, TagalogPRO pts in pair: 1760

25 mins
horizontal stretch

Explanation:
Unit of measurement for porosity or air permeability according to Gurley:
cubic feet of air per minute per square foot at 0.5 inches of water pressure

Reference: http://www.gpi-test.com
 Poornima IyengarLocal time: 22:31Native speaker of: EnglishPRO pts in pair: 162
 Thanks! This is exactly the information I was looking for.

2 hrs
drawing frame

Explanation:
a term used both in the textile and paper industries for frames on which the paper or textiles are stretched.

Ernst
 Alexander SchleberBelgiumLocal time: 19:01Native speaker of: German, EnglishPRO pts in pair: 2261