# Shouldn't MSDS data on products be publicly disclosed?

I am wondering whether companies are required to disclose MSDS data on their products: toxicity, $\mathrm{LD_{50}}$, etc. Not only that, but I am wondering whether they are required to disclose the methodology that they used. I know that this isn't a legal forum, but some companies that I asked are unwilling to give details on how the toxicity was tested. What are some laws that are in place (regardless of country)? I thought that all MSDS data should be public.

• Companies are required to have SDS (don't know why they changed from MSDS to SDS recently, but...) sheets for chemical products they sell. What you see conforms to US federal regulations. It is highly unusual for a company to do their own toxicology (if it is even done). That is done to standards established and controlled by national or international industrial hygiene associations. I have seen (and used) many specialty chemicals where such testing had not been done, so no data was listed since there was none. There is no requirement to perform it for a new chemical. Oct 6 '16 at 16:16
• @JonCuster The thing is that some companies have nearly 30 entries missing. I am looking at some cleaning products...They have No data available on environmental hazard part. Data missing on inhalation. There is no acute exposure limit. Irritation data is missing. Is this even legal..? It says it got approved by the nation's msds lab.. Oct 6 '16 at 16:45
• Yes, it is legal. Perhaps not ideal, but legal. If you still have concerns, discuss with your nearest IH person (industrial hygiene). Oct 6 '16 at 16:50