Eric here from the Museum of Science. we recently received a PFC. I had a question about materials sent. There are two large bottle with blank white labels that were supplied and we were wondering the contents. I have assumed so far one is nutrient and the other is pH, however, per regulations as a chemical laboratory we have to supply a Safety Data Sheet (SDS) with the current Globally Harmonized System (GHS) format. If you are aware of the exact chemical in these bottles or have the SDS for them that would be extremely helpful!