09:12 Sep 20, 2012
This question was closed without grading. Reason: Other

Danish to English translations [PRO]
Tech/Engineering - Ships, Sailing, Maritime
Danish term or phrase: Dn
This abbreviation occurs in a specification of a ship's construction, in a section regarding supports for pipes, as follows:

Fladjernet skal have følgende dimensioner:

(Column 1)
16-65 mm
80-150 mm

(Column 2)
b x t
25 x 4 mm
50 x 4 mm

It occurs again later:
"Afstanden mellem bøjlerne på samme rør må ikke overstige 1,5 m for rør med Dn = 80 mm og derunder og 2 m for rør med Dn = 100 til 150 mm."

It looks at first sight like the writer's own abbreviation for "Dimension", but I'm unsure. Anyone come across it before? None of the Wikipedia suggestions seems to apply http://en.wikipedia.org/wiki/DN

David Young (X)
Local time: 12:24

Summary of answers provided
Leif Henriksen
Summary of reference entries provided
Salvador Scofano and Gry Midttun



9 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5

DN is a commonly used, international abbreviaton for nominal diameter. It is actually 'explained' in your column 1.

Note added at 9 hrs (2012-09-20 19:05:58 GMT)

I don't understand why you say that none of the suggestions in Wikpedia seems to apply. When I look it upnow, after posting my answer, I see that this comes up as the first suggestion........

Note added at 1 day3 hrs (2012-09-21 12:29:36 GMT)

We have all been there, David - I know how it feels when the brain initiates automatic shutdown :)

Leif Henriksen
Local time: 12:24
Native speaker of: Native in NorwegianNorwegian, Native in Norwegian (Bokmal)Norwegian (Bokmal)
Notes to answerer
Asker: Bad day at the office. Thanks Leif. After receiving the reference from Salvador and Gry, I re-googled and re-read the wikipedia entry. I then realised I should not be working and went back to bed to sleep it off. :) I also closed the question under "Other" (i.e. embarrassment).

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Reference comments

3 mins
Reference: Ref.

Reference information:
www.dregg.is/pdf/Handbok_Pipelife.pdf - Traduzir esta página
Formato do arquivo: PDF/Adobe Acrobat - Visualização rápida
DN – Nominell diameter. Tallstørrelse. Et helt tall i millimeter som er tilnærmet lik diameteren på røret. Drenering - Som regel grunnvann som ledes inn i rør for å ...

Salvador Scofano and Gry Midttun
Specializes in field
Native speaker of: Native in NorwegianNorwegian, Native in PortuguesePortuguese
Note to reference poster
Asker: Many thanks - I should maybe have googled "DN pipes" in the first place instead of just Dn.

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