It’s difficult to say for certain whether this is normal without knowing more about the specific situation and the context of the request. However, it is not uncommon for certifying agencies to request additional information about the materials being used in a product, especially if they have not encountered those materials before.
MSDS (Material Safety Data Sheet) is a document that contains information on the potential hazards and safe handling of a chemical substance or product. If the MSDS for the linseed ferment is not readily available or does not provide sufficient information, it is reasonable for Oxford Biosciences to request additional information about the product, including how it is made and its intended use.
It’s also possible that the certification process requires a more detailed understanding of the product’s composition, and the additional information is needed to ensure that the product meets the necessary standards. In this case, the request for more information should be seen as a normal part of the certification process.
Overall, it’s important to work with certifying agencies that are reputable, transparent, and have a track record of providing high-quality services. If you have concerns about the certification process, it’s important to communicate with the agency and ask questions to ensure that you have a clear understanding of their requirements and expectations.