You can take a look at these sites:
http://www.iso.org/iso/home.htm (English) or
http://www.hkqaa.org/chinese/cgi-bin/goto.asp?CSOURCE=iso9001frame.html (Chinese)
ISO = International Organisation Standards
I think you have heard of ISO9000 standard, right?
I hope the above web sites give you some background so that when you consider if you apply the job, you have some basic ideas of what it is. I think the
job is to ensure the quality of service provided to customer is of
international standards so you may have to do research and QC jobs. Every
job may have some easy parts and some difficult parts if you take the job,
you have to take both! Good luck for your job search.