· *Note: Conversion factor CF was determined with "n" = 2.7 [ten Berge et al. 1986]. Other animal data: The median effective concentrations to produce incapacitation EC 50 s in rats have been determined to be 139 ppm and 115 ppm in 15 and 30 minutes, respectively [Hartzell et al. 1985]. Other human data: It has been reported that 45 to 54 ppm can be tolerated for 0.5 to 1 hour without ...
Hot Crushers Brief Introduction
We are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant, rotary dryer, briquette machine, mining, metallurgy and other related equipment.If you are interested in our products or want to visit the nearby production site, you can click the button to consult us.
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