w/w

English translation: by weight

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)

English term or phrase:	w/w
Selected answer:	by weight
Entered by:	Marina Soldati

14:29 Oct 30, 2007

English language (monolingual) [Non-PRO]
Tech/Engineering - Chemistry; Chem Sci/Eng / MSDS

English term or phrase: w/w

Hi!

I`d like to know what the term "w/w" stands for in the following context:

Generally, in such solvent/non-solvent mixtures, the solvent can constitute from up to about 30% **w/w** of the coagulating bath, the ideal amount depending, of course, on the specifics of the spinning or coagulation process.

Thanks in advance

Marina Soldati KudoZ activity Questions: 421 (none open) (29 closed without grading) Answers: 4276 Argentina
Local time: 23:06

by weight

Explanation:
w/w
an abbreviation for "by weight," used in chemistry and pharmacology to describe the concentration of a substance in a mixture or solution. Properly speaking, 2% w/w means that the mass of the substance is 2% of the total mass of the solution or mixture. The metric symbol g/g has the same meaning as w/w.

Selected response from:

Monika Silea
Romania
Local time: 05:06

Grading comment

Thanks, Monika, for the explanation and the link.
4 KudoZ points were awarded for this answer

SUMMARY OF ALL EXPLANATIONS PROVIDED

4 +6

by weight

Monika Silea

4 +1

weight/weight

Saleh Chowdhury, Ph.D.

4 +1

Nik-On/Off

Answers

2 mins confidence:

peer agreement (net): +1

weight/weight

Explanation:
-

Saleh Chowdhury, Ph.D.
Bangladesh
Local time: 08:06
Native speaker of:

Bengali
PRO pts in category: 56

4 mins confidence:

peer agreement (net): +1

->

Explanation:
Percent (w/w) or Percent (weight to weight) means grams of material dissolved per 100 g solution.
http://www.udyone.com/udydocs/udysys8.shtml

Nik-On/Off
Ukraine
Local time: 05:06
Native speaker of:

Russian,

Ukrainian
PRO pts in category: 4

5 mins confidence:

peer agreement (net): +6

by weight

Monika Silea
Romania
Local time: 05:06
Specializes in field
Native speaker of:

Romanian

Grading comment

Thanks, Monika, for the explanation and the link.

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English translation: by weight

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