Quality Control and Proficiency Samples
ERA WATERS CORP STANDARD PLATE COUNT QC
Each sample is one lyophilized standard containing a Heterotrophic bacteria present in the range 5-500 CFU/mL or MPN/mL. Use with the Standard Methods 9215B - Pour Plate Method, and Most Probable Number (MPN) Method (simplate).
SPEX CERTIPREP LLC 3P WS-Orthophosphate
(NSI by Zeptometrix) A 21 mL concentrate for determination of Orthophosphate. Formulated in the NELAC range of 0.5 - 5.5 mg/L. Each ampule produces 2 liters of sample.
ERA WATERS CORP TRACE METALS QC SAMPLE
One 15 mL screw-cap vial yields up to 1 liter after dilution. Use with AA, ICP-OES or ICP-MS and selected colorimetric methods.
ERA WATERS CORP Bromide - 1000mg/l, 12ml
One 125ml standard containing Bromide at 1000mg/l in H2O. This CRM is covered by ERA's ISO Guide 34 accreditation.
ERA WATERS CORP NITRITE QC STANDARD
Nitrite, One 2mL flame-sealed ampule yielding up to 2 liters of sample, Nitrite as N
ERA WATERS CORP RESIDUAL CHLORINE QC
One 2 mL flame-sealed ampule yields up to 2 liters after dilution.
Inorganic Ventures 200.8 QC STANDARD Hg 125mL
Inorganic Ventures' Quality Control Standard 4 is a 125mL certified reference material set in a nitric acid matrix for stability. This mercury standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. See Certificate of Analysis for expiration.
ATTENTION: Inorganic Ventures is no longer supplying paper copies of Certificate of Analyses(CoA) and Safety Data Sheets (SDS). Please use this link to download your copies: https://www.inorganicventures.com/coa-sds-search