TEST Turbidity 600 NTU +/- 6 Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

NIST Traceable, non-toxic reference material for the UV spectrophotometer. Full UV scan reported with a typical absorbance at 300 nm in 10 mm pathlength being approximately 0.754.

The pH of a sample is an indication of its acidity or alkalinity and pH determination is one of the most commonly conducted laboratory measurements. The term pH is defined as the negative logarithm (base 10) of the Hydrogen ion concentration (or, more accurately, Activity) expressed in molarity.…

pH (@ 25°C) 5.00 +/- 0.02 NIST Traceable

(CH₃)₂CHCH₂COCH₃ CAS#: 108-10-1 F.W.: 100.16 NFPA#: 2-3-1 Descriptions: Methyl Isobutyl Ketone, MIBK

H₂O₂ CAS#: 7722-84-1 F.W.: 34.02 Specific Gravity: 1.100 Stabilized with less than 1ppm of tin.

AgNO₃ CAS#: 7761-88-8 F.W.: 169.89

CHCl₃ CAS#: 67-66-3 F.W.: 119.38

TEST Turbidity (on Analite/ISO 7027 probe) 400 NTU Absorbance at 455nm (10mm pathlength) Lot Number of Baseline Material

((CH₃)₂CH)₂NH CAS#: 108-18-9 F.W.: 101.19

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric acid NIST Traceable

The GFS Chemicals 48% aqueous fluoroboric acid is mainly used in research facilities and chemical laboratories to conduct wide range of experiments. It is available in sturdy bottle that endures heavy and rigorous usage. Application: For Professional, Scientific and Technical Activities: other…

1000 ppm nitrogen from ammonium chloride, 1220 ppm ammonia. Concentration (as N) 1,000 +/- 10 ug/ml Matrix: Ammonium chloride in water NIST Traceable

pH (@ 25°C) 7.38 +/- 0.02 NIST Traceable

Concentration 1,000 +/- 10 ug/ml Matrix: 5% nitric acid NIST Traceable

CH₃CHO CAS#: 75-07-0 F.W.: 44.05 Ethanal

TEST Turbidity (AQ4500) EPA mode 1 NTU +/- 0.05 Turbidity (AQ4500) ISO Neph. mode Turbidity (AQ4500) IR Ratio mode Thermo Electron AQ4500 serial number Instrument calibration date Formazi

Concentration 1,000 +/- 10 ug/ml Matrix: 5% Nitric Acid NIST Traceable

AA, or colorimetric standard

Suitability for metals (APHA) Pass Test

TEST Turbidity 30 NTU +/- 0.3 Absorbance at 455nm (100mm pathlength) Lot Number of Baseline Material

pH (@ 25°C) 10.00 +/- 0.03 NIST Traceable

pH (@ 25°C) 4.00 +/- 0.02 NIST Traceable

Concentration 10,000 +/- 100 ug/ml Matrix: 5% Nitric Acid NIST Traceable

C₁₉H₁₃O₅SNa CAS#: 34487-61-1 F.W.: 376.36

(CH₃)₃COH CAS#: 75-65-0 F.W.: 74.12 2-Methyl-2-propanol

For coulometric analysis of oils and petroleum products. Anolyte for coulometric titrators.

The GFS Chemicals hydriodic acid with 47% concentration levels comes in a colorless liquid form with a pungent odor. The hydriodic acid is ideal for many purposes in professional, scientific and technical fields. Application: For Professional, Scientific and Technical Activities, other…

Concentration (as Cl) 1,000 +/- 10 ug/mL Matrix: KCl, water

HCOOH CAS#: 64-18-6 F.W.: 46.03 Similar to redistilled grade with guaranteed trace metal specifications. Packed in fluorinated bottles to minimize boron and silicon contamination.

(C₆H₅)₂NH CAS#: 122-39-4 F.W.: 169.22

NH₂OH•HCl CAS#: 5470-11-1 F.W.: 69.50 NFPA#: 2-0-0