# 24° dH

## English translation: dH (German hardness standard)

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
 German term or phrase: deutsche Härte (dH) English translation: dH (German hardness standard) Entered by:

 07:50 Feb 11, 2004
German to English translations [PRO]
Tech/Engineering / water hardness
 German term or phrase: 24° dH This is the unit of measurement for water hardness in my German text. Do we use the same measurement in English (I found a website which says that this German measurement is becoming more widespread). If not how would I convert it?
 Louise MawbeyGermany Local time: 09:13
 German hardness - deutsche Härte Explanation:.--------------------------------------------------Note added at 8 mins (2004-02-11 07:58:46 GMT)--------------------------------------------------you leave it like that and don\'t convert it, I\'ve oftentimes seen it written that way. The care instructions that Wolfgang gave should work well for any Sturisoma spp. though. Mine is currently thriving in a pH of 7.4 and 10 DH. Side note: DH = Deustche Hartgraden, which translates as German hardness gradient. So GH (German Hardness) and dGH (degrees German Hardness) are the same thing as DH. They are just DH translated into English. It is confusing though if you do not know this. I have meet many hobbyists that thought DH, GH, and dGH were all different measurements. We also use ppm (parts per million) which is the same thing as mg/L (milligrams per liter). To convert ppm to DH, multiply by .056. I sometimes see 100 dGH (even in aquarium books). This person forgot to do the multiplication and placed a ppm reading with the DH symbol. There is also the American measurement of grains/ US gallons (to convert ppm to grains/ US gallons, multiply ppm by .058), but we never use this. Most of us Americans are horrible with the metric system, but understand our own system even less :) I digress...
Selected response from:

Edith Kelly
Switzerland
Local time: 09:13
 Thanks a lot4 KudoZ points were awarded for this answer

5 +3German hardness - deutsche Härte
 Edith Kelly

6 mins   confidence: peer agreement (net): +3
24° dH
German hardness - deutsche Härte

Explanation:
.

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Note added at 8 mins (2004-02-11 07:58:46 GMT)
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you leave it like that and don\'t convert it, I\'ve oftentimes seen it written that way.

The care instructions that Wolfgang gave should work well for any Sturisoma spp. though. Mine is currently thriving in a pH of 7.4 and 10 DH. Side note: DH = Deustche Hartgraden, which translates as German hardness gradient. So GH (German Hardness) and dGH (degrees German Hardness) are the same thing as DH. They are just DH translated into English. It is confusing though if you do not know this. I have meet many hobbyists that thought DH, GH, and dGH were all different measurements. We also use ppm (parts per million) which is the same thing as mg/L (milligrams per liter). To convert ppm to DH, multiply by .056. I sometimes see 100 dGH (even in aquarium books). This person forgot to do the multiplication and placed a ppm reading with the DH symbol. There is also the American measurement of grains/ US gallons (to convert ppm to grains/ US gallons, multiply ppm by .058), but we never use this. Most of us Americans are horrible with the metric system, but understand our own system even less :) I digress...

 Edith KellySwitzerlandLocal time: 09:13Native speaker of: German, EnglishPRO pts in pair: 9212
 Thanks a lot

agree
 4 mins
-> Thanks.

agree  helen howard: agree. found this: How is hardness measured? There are two units commonly used in measuring hardness: German Degrees of Hardness (dH) and Parts Per Million (ppm). One dH = 17 ppm. For a rule of thumb:
 7 mins

agree  Wolf Brosius (X): It is based on Calcium oxide CaO=mol.mass 56 ,Ca=40,+O=16
 7 hrs

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