Sigma-Aldrich products

Drinking Water Reference Standards

Model 48230-U - EPA 525 - Fortification Solution A

2000 μg/mL each component in methylene chloride, analytical standard.

Model 48099 - EPA 525 - Fortification Solution B

500 μg/mL each component in acetone, analytical standard.

Model 48953-U - EPA 525 - PAH Mix A Analytical Standard

500 μg/mL each component in methylene chloride, analytical standard.

Model 48249 - EPA 525 - PAH Mix B Analytical Standard

This certified reference material (CRM) is produced and certified in accordance with ISO Guide 34:2009 and ISO/IEC 17025:2005. All information regarding the use of this CRM can be found on the certificate of analysis. 500 μg/mL each component in acetone, analytical standard.

Model 506540 - EPA 525 - Semivolatiles Calibration Mix without Pesticides

1000 μg/mL each component in acetone (except where noted), analytical standard.

Model 47973 - EPA 525 - Update Phthalate Esters Mix Analytical Standard

500 μg/mL each component in methanol, analytical standard.

Model 48246 - EPA 525, 525.1 - PCB Mix Analytical Standard

500 μg/mL each component in hexane, analytical standard.

Model 48112 - EPA 551 - Disinfection Byproducts Kit

EPA 551A Halogenated Volatiles Mix (48045) 1 mL, Chloral hydrate solution (47335-U) 1 mL, EPA 551B Halogenated Volatiles Mix (48046) 1 mL.

Model 48045 - EPA 551A - Halogenated Volatiles Mix

This certified reference material (CRM) is produced and certified in accordance with ISO Guide 34:2009 and ISO/IEC 17025:2005. All information regarding the use of this CRM can be found on the certificate of analysis.. 2000 μg/mL each component in acetone, analytical standard.

Model 48047 - EPA 552 - Halogenated Acetic Acids Mix

2000 μg/mL each component in methyl tert-butyl ether, analytical standard.