Merck Sulfat-test method: colorimetry with color chart and comparator block short test tubes, 90 tests, 25 - 50 - 80 - 110 - 140 - 200 - 300 mg/l SO4²

Please take note of the Safety Data Sheet http://www.merckmillipore.com/INTERSHOP/web/WFS/Merck-INTL-Site/en_US/-/USD/ShowDocument-File?ProductSKU=MDA_CHEM-114411&DocumentType=MSD&Language=EN&Country=GB