Quality Control and Proficiency Samples
SPEX CERTIPREP LLC 3P TOTAL CHLORINE CHECK STANDARD
(NSI by Zeptometrix) Total Chlorine Accuracy Check RM, 25 Tubes, 1.00 mg/L, Dilutes to 25mL
Aqua Solutions TSS Standard 20 mg/L (Celite - Shake bottle well before use) (1L)
TSS Standard 20 mg/L (Celite - Shake bottle well before use) (1L)
SPEX CERTIPREP LLC 3P NSI OIL 40G/ML STD 25/10ML
(NSI by Zeptometrix) Oil and Grease Method 1664 Recovery Standard (0.2%) Snip, 20 x 10mL
SPEX CERTIPREP LLC 3P TRC CONCENTRATE .05MG/L 24/PK
(NSI by Zeptometrix) Total Residual Chlorine Concentrate CRM, 24 ampules, 0.050 mg/L, Dilutes to 1:1000
ERA WATERS CORP QC WASTEWATER COMPLEX NUTRIENT
One 15 mL screw-cap vial yields up to 2 liters after dilution.
Verichem Laboratories ELECTROLYTE STANDARD KIT
Protein-based, liquid standards Intended for calibration verification or calibration Suitable for most direct ISE, diluted ISE and cesium flame Glycol and surfactant free for maximum electrode protection Revised formulation for lithium direct ISE
Verichem Laboratories BILIRUBIN STD KIT 10X5ML
Protein-based, optically clear liquid standards. Intended specifically for calibration verification. Known linear relation stated in product insert. Stable five days after opening when refrigerated. Kit includes two, five-level sets. No glycols, azides or surfactants.
Verichem Laboratories Reference Kit Matrix Plus™ Chemistry 1 X 15 mL
Protein based, ready-to-use liquid. No glycols, azides or surfactants. Known concentrations verified against available NIST standard reference material. Glucose, Urea Nitrogen, Creatinine, Calcium, Phosphorus, Magnesium, Triglyceride Analytes
SPEX CERTIPREP LLC 3P INORGANIC QC SAMPLE 500ML
(NSI by Zeptometrix) Drinking Water Inorganics Sample, 500 mL
ERA WATERS CORP Total Organic Carbon (TOC) - 1000mg/l, 500ml
One 500ml amber glass bottles with TOC at 1,000mg/l perserved with H2SO4.
SCP Science QC STANDARD NO4
Quality Control Standard 4, Designed Specifically for EPA 200.7, 200.8, 6010 and Superfund CLP, Traceability to NIST
SPEX CERTIPREP LLC 3P TRC CONCENTRATE 2MG/L 24/PK
(NSI by Zeptometrix) Total Residual Chlorine Concentrate CRM, 24 ampules, 2.00 mg/L, Dilutes to 1:1000