What standards for data quality apply?

New to the forums... Have searched for posts discussing obligations data publishers might have concerning letting people know what data quality tests have been applied to their datas, and how confident they are about accuracy, completeness, etc. This should be information that is useful and interesting to most data consumers. And crucial to certain consumers. Are there any protocols around this, or being developed, that you know of?

To declare my interest, I sit on ISO 8000 committee for Data Quality, and I am researching the DQ dimension of Linked Data.