How often are the SDS (Safety Data Sheets) files updated on the Hach website?
SDS sheet update periodicity
SDS files on the Hach website are kept current based on regulations. Canadian WHMIS files are updated every 3 years. Australian files are updated every 5 years. US/OSHA files do not require an update by date. OSHA files do not require updating unless there is a change in regulations or if there is new toxicological data to update.