He made the comment at a BCPS school board meeting while he was singing the praises of the ISO 9000 program at BCPS.
I've been involved in a few corporate efforts similar to ISO 9000. There can be advantages for sure, but adopting such a program is no guarantee of success. It's a lot of work and there are plenty of pitfalls:
UPDATE: More thoughts on problems that can come with standardization. As Ken Robinson puts it, schools can kill creativity:
The standard is seen as especially prone to failure when a company is interested in certification before quality.
And there are situations where looking for a single standard means you are asking the wrong question. Malcolm Gladwell on What we can learn from spaghetti sauce: