example of citation of an ISO standard in BibTeX

This is an example of how to cite an ISO standard in BibTeX:
@techreport{ISOPDF,
 author = {ISO},
 Institution = {International Organization for Standardization},
 address = {Geneva, Switzerland},
 Title = {Document management---{P}ortable document format---{P}art~1: {PDF}~1.7},
 number = {32000\char"2012 1:2008},
 Type = {ISO},
 Year = {2008}
 }

Note:\char"2012 from number field is figure dash (‒). The ISO standard above is ISO 32000‒1:2008.