Greetings,
Graduate school has prevented me from posting much over the last few months, but with classes now over I hope to play catch up and begin to post more regularly again.
For starters, I updated the links on the standards page of this blog; this includes fixing broken links and adding a few new ones.
Perhaps most notable is the addition of new fuel quality standards for all of Guangdong province. The new standards, called Guangdong IV (”粤IV”), apply to both gasoline and diesel, and took effect on 6/1/10. The standards call for maximum of 50 ppm sulfur level for both gasoline and diesel. Lowering sulfur levels in fuel, especially diesel fuel, is a critical step towards the introduction of the cleanest vehicle technologies. I will post separately on this. In the meantime, here are links to the standards (Chinese): Guangdong IV gasoline － DB44/ 694-2009; Guangdong IV diesel － DB44/ 695-2009.
