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acide benzoïque étalon

English translation: benzoic acid standard

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:acide benzoïque étalon
English translation:benzoic acid standard
Entered by: Carol Gullidge

22:05 Aug 18, 2007
French to English translations [PRO]
Tech/Engineering - Patents / used in bomb calorimeter to measure heat
French term or phrase: acide benzoïque étalon
Une prise d'essai du matériau, de masse déterminée est brûlée dans des conditions normalisées en présence d'oxygène et d'******acide benzoïque étalon****** si nécessaire, dans une bombe calorifique (équivalent en eau connu). Le pouvoir calorifique supérieur mesuré dans ces conditions, à volume constant, se calcule à partir de l'élévation de température constatée au moyen d'un calorimètre adiabatique automatique.

Later on, this is weighed:

1er essai
- Masse d'échantillon 0,1992 gramme
- Masse d'*****acide benzoïque étalon***** 0,4988 gramme
- Élévation de température 1,4390 °C

----

It's the étalon that is particularly confusing me. Does anybody know what this is?

Many thanks!
Carol Gullidge
United Kingdom
Local time: 02:48
benzoic acid standard
Explanation:
Benzoic acid is used as a standard reference in bomb calorimetry.

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Note added at 1 hr (2007-08-18 23:46:09 GMT)
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Yes, it can be weighed, see IP-Chemist's comment
Selected response from:

Anton Konashenok
Czech Republic
Local time: 03:48
Grading comment
Thanks so much, Anton. This fits perfectly!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +2benzoic acid standard
Anton Konashenok


  

Answers


8 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
benzoic acid standard


Explanation:
Benzoic acid is used as a standard reference in bomb calorimetry.

--------------------------------------------------
Note added at 1 hr (2007-08-18 23:46:09 GMT)
--------------------------------------------------

Yes, it can be weighed, see IP-Chemist's comment

Anton Konashenok
Czech Republic
Local time: 03:48
Native speaker of: Native in RussianRussian, Native in EnglishEnglish
PRO pts in category: 4
Grading comment
Thanks so much, Anton. This fits perfectly!
Notes to answerer
Asker: Ah! That makes a lot more sense now! Thanks so much for such a speedy response, so late on a Saturday night. Now for another (dumb?) question: can this standard be weighed?


Peer comments on this answer (and responses from the answerer)
agree  IP-Chemist: forget my comment, as it makes things more complicate, benzoic acid was chosen as international standard in bomb calorimetry for some reasons such as easy to purify
1 hr
  -> Thanks!
agree  sktrans
6 hrs
  -> Thanks!
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