In spite of their popularity, there are few formal standards for such free - from ingredient claims. (ecologyandfarming.com)
Since the introduction of formal standards in the 1990s, the global market for organic products has grown from almost nothing to USD 64 billion. (ecologyandfarming.com)
We now see people wanting to use formal standards to measure sustainability rather than the previous plethora of proprietary standards. (politics.co.uk)