<http://schema.org/description>
"Back in 2005, you responded to a question regarding the reporting of sulfuric acid in lead/acid batteries for SARA 302/311/312 reporting. You had estimated that sulfuric acid would be about 18% of the weight of the battery. Is this still a good estimate?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/articles/sulfuric-acid-reporting>