
pH Buffer Solutions
pH buffer solutions are used to calibrate pH meters and ensure accurate pH measurements in various applications. These solutions maintain a stable pH, allowing precise calibration and reliable results in laboratory and industrial processes. At CymitQuimica, we provide a wide variety of pH buffer solutions with different pH values, essential for ensuring the accuracy of pH meters and optimizing the performance of analytical instruments.
Products of "pH Buffer Solutions"
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MES Sodium Salt Buffer extrapure, 99%
CAS:Formula:C6H12NO4SNaPurity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:217.223-(Cyclohexylamino)-2-hydroxypropane-1-sulfonic Acid
CAS:Formula:C9H19NO4SPurity:>98.0%(T)(qNMR)Color and Shape:White to Light yellow powder to crystalMolecular weight:237.31Reagecon pH 6.00 Buffer Solution at 20°C in Bag-in-Box
Reagecon's pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 10.00 Buffer Solution at 20°C
Reagecon’s pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidL-(+)-Lactic acid, 98%
CAS:Formula:C3H6O3Purity:(Titration) 98.0 - 102.0 %Color and Shape:White to off-white crystalline powderMolecular weight:90.08N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic Acid [Good's buffer component for biological research]
CAS:Formula:C6H15NO6SPurity:>98.0%(T)Color and Shape:White to Almost white powder to crystalMolecular weight:229.25MOPS Hemisodium Salt Buffer extrapure, 99%
CAS:Formula:C7H14·5NO4SNa0Purity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:220.25Reagecon pH 7.00 Buffer Solution at 20°C in Bag-in-Box
Reagecon's pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidBIS-TRIS Propane Buffer extrapure, 99%
CAS:Formula:C11H26N2O6Purity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:282.33L-(+)-Tartaric Acid
CAS:Formula:C4H6O6Purity:>99.0%(T)Color and Shape:White or Colorless powder to crystalMolecular weight:150.09Reagecon pH 4.01 Colour Coded Buffer Solution at 25°C
Reagecon's pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Technical Colour Coded Buffer Solution at 25°C
Reagecon’s Technical pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:Liquidtri-Potassium citrate monohydrate, Ph. Eur. grade
CAS:Formula:C6H5K3O7·H2OPurity:99.0 - 101.0 % (anhydrous basis)Color and Shape:Colourless crystals or white granular powderMolecular weight:324.42Reagecon pH 9.00 Colour Coded Buffer Solution at 20°C
Reagecon's pH Buffer Solution at 20°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 3.06 DIN 19267 Buffer Solution at 25°C
Reagecon's DIN 19267 pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidTAPS Buffer extrapure, 99%
CAS:Formula:C7H17NO6SPurity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:243.28Reagecon pH 2.00 Buffer Solution at 20°C
Reagecon’s pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Colour Coded Buffer Solution at 25°C
Reagecon's pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 10.00 Technical Colour Coded Buffer Solution at 25°C
Reagecon’s Technical pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Mercury Free Buffer Solution at 25°C
Reagecon’s Mercury Free pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidN-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic Acid [Good's buffer component for biological research]
CAS:Formula:C7H17NO6SPurity:>98.0%(T)Color and Shape:White to Almost white powder to crystalMolecular weight:243.27HEPES sodium salt
CAS:HEPES is a buffer solution made up of the salts of an organic acid and a weak base. It is used to maintain pH in biochemical experiments and for buffering solutions in biological systems, such as, blood plasma. HEPES can also be used in dilution assays to measure prothrombin time (PT) with microbial surfactant lysis and it has been shown to have significant neuroprotective effects when exposed to light. HEPES has been used as a solid catalyst in the synthesis of light-sensitive drugs, such as, psoralen and its derivatives. It has also been used in fluid samples for measuring enzyme activity with sephadex g-75 or toxicity effects on cells with sephadex g-100.Formula:C8H17N2NaO4SPurity:(Nmr) Min. 90%Color and Shape:PowderMolecular weight:260.29 g/molReagecon pH 4.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 1.679 DIN 19266 Buffer Solution at 25°C in Bag-in-Box
Reagecon's DIN 19266 pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:Liquid3-Cyclohexylaminopropanesulfonic Acid [Good's buffer component for biological research]
CAS:Formula:C9H19NO3SPurity:>98.0%(T)Color and Shape:White to Almost white powder to crystalMolecular weight:221.32Reagecon pH 4.00 Buffer Solution at 20°C
Reagecon’s pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidSodium pyrophosphate decahydrate, 99%
CAS:Formula:Na4P2O7·10H2OPurity:99.0 - 102.0 % (Na4P2O7 · 10H2O)Color and Shape:White crystalline powder or crystalsMolecular weight:446.06Reagecon pH 11.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 8.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidSodium acetate, anhydrous
CAS:Formula:C2H3NaO2Purity:(Titration) 99.0 - 101.0 %Color and Shape:White crystalline powderMolecular weight:82.03Reagecon pH 6.865 DIN 19266 Buffer Solution at 25°C in Twin Neck
Reagecon's DIN 19266 pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 9.225 NIST Value Buffer Solution at 20°C
Reagecon’s NIST Value pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 2.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 2.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 4.00 Mercury Free Colour Coded Buffer Solution at 25°C
Reagecon’s Mercury Free pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidACES Buffer for molecular biology, 99.5%
CAS:Formula:C4H10N2O4SPurity:min.99.5%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:182.20Reagecon pH 4.00 Buffer Solution at 25°C in Bag-in-Box
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidMOPS Sodium Salt Buffer extrapure, 99.5%
CAS:Formula:C7H14NO4SNaPurity:min. 99.5%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:231.25Reagecon pH 6.00 Mercury Free Buffer Solution at 25°C
Reagecon’s Mercury Free pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Buffer Solution at 20°C
Reagecon’s pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidPiperazine-1,4-bis(2-hydroxypropanesulfonic Acid) Dihydrate [Good's buffer component for biological research]
CAS:Formula:C10H22N2O8S2·2H2OColor and Shape:White to Almost white powder to crystalMolecular weight:398.44Reagecon pH 3.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidTES
CAS:Formula:C6H15NO6SPurity:(Titration) ≥ 99.0% (anhydrous basis)Color and Shape:White powderMolecular weight:229.25HEPES Buffer extrapure, 99%
CAS:Formula:C8H18N2O4SPurity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:238.306x DNA Loading Dye
6x Gel Loading Dye is a pre-mixed loading buffer with two tracking dyes for agarose and non-denaturing poylacrylamide gel electrophoresis. EDTA is included to chelate magnesium (up to 10 mM) in enzymatic reactions, thereby stopping the reaction. Bromophenol blue and xylene cyanol are the standard tracking dye for electrophoresis.Color and Shape:Liquid, BlueReagecon pH 4.60 Technical Colour Coded Buffer Solution at 25°C
Reagecon’s Technical pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 9.00 Coloured Coded Buffer Capsules at 25°C
Reagecon's pH Buffer Capsules at 25°C are tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable. - Each capsule makes up to 100ml pH Buffer. - Preservative free. - Easy to store and transport. - Colour coded packaging; easy to identify and easy to use. - Extended shelf life. - Economical. - Dissolve quickly.Color and Shape:Powder CapsulesL-Felinine
CAS:Controlled ProductApplications An amino acid found in the urine of species of the Felidae family, is believed to either possess pheromone activity or give rise to compounds with such activity. References Daniels, D.L. and Richert, C.: Tetrahedron Letters, 40, 4463 (1999)Formula:C8H17NO3SColor and Shape:WhiteMolecular weight:207.29EDTA tetrasodium salt hydrate
CAS:Formula:C10H12N2Na4O8·xH2OPurity:(Titration) 98.0 - 103.0 % (EDTA · 4Na · 4H2O)Color and Shape:White crystalline powderMolecular weight:380.17 (anhydrous)EDTA tripotassium salt dihydrate
CAS:Formula:C10H13K3N2O8·2H2OPurity:(Titration) 99.0 - 101.0 % (dried basis)Color and Shape:White crystalline powder or fine granulesMolecular weight:442.55Reagecon pH 12.627 NIST Value Buffer Solution at 20°C
Reagecon’s NIST Value pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidMES sodium salt
CAS:Formula:C6H12NNaO4SPurity:(Titration) 99.0 - 101.0 %Color and Shape:White crystalline powderMolecular weight:217.22Reagecon pH 10.00 Buffer Solution at 20°C in Bag-in-Box
Reagecon's pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 10.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 4.01 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Recal Colour Coded Buffer Solution at 25°C
Reagecon's pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 9.00 Buffer Solution at 20°C in Bag-in-Box
Reagecon's pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:Liquid1,3-Bis[tris(hydroxymethyl)methylamino]propane [for Buffer Material]
CAS:Formula:C11H26N2O6Purity:>99.0%(T)Color and Shape:White to Almost white powder to crystalMolecular weight:282.34Reagecon pH 4.00 Citrate Buffer Solution at 25°C
Reagecon’s Citrate pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 4.00 Antimony Colour Coded Buffer Solution at 25°C
Reagecon’s Antimony pH Buffer Solution is colour coded for ease of use and phosphate free. This pH Buffer Solution is formulated for use in intra-gastric pH analysis using antimony or equivalent electrodes. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidMOPS
CAS:Organic buffer for biology and biochemistry applicationsFormula:C7H15NO4SColor and Shape:White Off-White PowderMolecular weight:209.3 g/molCalcium phosphate dibasic dihydrate
CAS:Formula:CaHPO4·2H2OPurity:98.0 - 102.0 %Color and Shape:White or almost white powderMolecular weight:172.09Reagecon pH 4.000 High Resolution Colour Coded Buffer Solution at 20°C
Reagecon's High Resolution Colour Coded pH Buffer Solution at 20°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidImidazole
CAS:Formula:C3H4N2Purity:≥ 99.0%Color and Shape:White crystalline powder or crystalsMolecular weight:68.08BES Sodium Salt Buffer extrapure, 99%
CAS:Formula:C6H14NNaO5SPurity:min. 99%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:235.23Reagecon pH 10.00 Colour Coded Buffer Solution at 20°C
Reagecon's pH Buffer Solution at 20°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:Liquiddi-Sodium hydrogen phosphate anhydrous, EP, USP grade
CAS:Formula:HNa2O4PPurity:98.0 - 100.5 %Color and Shape:White crystalline powder or crystalsMolecular weight:141.98Glycolic acid, pure, 99.5%
CAS:Formula:C2H4O3Purity:≥ 99.0%Color and Shape:Colourless, white or almost white crystals or crystalline powderMolecular weight:76.05Sodium dihydrogen phosphate dihydrate
CAS:Formula:H2NaO4P·2H2OPurity:(Titration) 98.0 - 102.0 % (anhydrous basis)Color and Shape:White crystalline powder or crystalsMolecular weight:156.01Reagecon pH 12.00 Buffer Solution at 20°C
Reagecon’s pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 9.00 Buffer Solution at 25°C in Bag-in-Box
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon Buffer Standard pH 7.00 at 20°C Colour Coded ISO 17034 Certified Reference Material
Reagecon's Buffer Standard pH 7.00 at 20°C Certified Reference Material is colour coded for ease of use; produced under our ISO 17034 (A2LA Ref: 6739.01) Accreditation and is NIST traceable. - ISO 17034 accreditation requirements include raw material characterisation; homogeneity and stability studies; assignment of certified values as well as packaging and documentation control.Color and Shape:LiquidReagecon Buffer Standard pH 4.65 at 25°C DIN 19267 ISO 17034 Certified Reference Material
Reagecon's Buffer Standard pH 4.65 at 25°C Certified Reference Material is produced under our ISO 17034 (A2LA Ref: 6739.01) Accreditation and is NIST traceable. - ISO 17034 accreditation requirements include raw material characterisation; homogeneity and stability studies; assignment of certified values as well as packaging and documentation control.Color and Shape:LiquidReagecon Buffer Standard pH 4.01 at 25°C Technical Colour Coded ISO 17034 Certified Reference Material
Reagecon's Buffer Standard pH 4.01 at 25°C Certified Reference Material is colour coded for ease of use; produced under our ISO 17034 (A2LA Ref: 6739.01) Accreditation and is NIST traceable. - ISO 17034 accreditation requirements include raw material characterisation; homogeneity and stability studies; assignment of certified values as well as packaging and documentation control.Color and Shape:LiquidHEPES
CAS:Organic buffering agent used in cell cultures A Good's buffer substance, pKa = 7.55 at 20 degreeC.Formula:C8H18N2O4SColor and Shape:White PowderMolecular weight:238.31 g/molReagecon pH 7.00 Buffer Solution at 20°C in Bag-in-Box
Reagecon's pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Colour Coded Buffer Solution at 25°C in Twin Neck
Reagecon's pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 1.00 Buffer Solution at 25°C in Twin Neck
Reagecon's pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 5.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidDiethanolamine
CAS:Formula:C4H11NO2Purity:98.5 - 101.5 %Color and Shape:Clear, colourless liquid or white solidMolecular weight:105.14Reagecon Carbonate pH 10.00 Borax Free Buffer Solution at 20°C
Reagecon’s Borax Free pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidLithium Citrate Tribasic Tetrahydrate extrapure AR (High Purity), 99.5%
CAS:Formula:C6H5O7Li3·4H2OPurity:min. 99.5%Color and Shape:White, Crystalline powder, Clear, ColourlessMolecular weight:281.98Reagecon pH 4.005 DIN 19266 Buffer Solution at 25°C
Reagecon's DIN 19266 pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 6.00 Buffer Solution at 25°C
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH Buffer Solution pH 8.00 ± 0.01 @ 38°C
Reagecon's pH Buffer Solution at 38°C is tested and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Colour Coded Buffer Solution at 25°C in Twin Neck
Reagecon's pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 7.00 Colour Coded Buffer Solution at 25°C
Reagecon's pH Buffer Solution at 25°C is colour coded for ease of use. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidAMPSO sodium salt
CAS:Formula:C7H16NO5SNaColor and Shape:White crystalline powderMolecular weight:249.26Reagecon pH 6.00 Buffer Solution at 20°C
Reagecon’s pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon Buffer Standard pH 3.776 at 25°C DIN 19266 ISO 17034 Certified Reference Material
Reagecon's Buffer Standard pH 3.776 at 25°C Certified Reference Material is produced under our ISO 17034 (A2LA Ref: 6739.01) Accreditation and is NIST traceable. - ISO 17034 accreditation requirements include raw material characterisation; homogeneity and stability studies; assignment of certified values as well as packaging and documentation control.Color and Shape:LiquidReagecon pH 6.881 NIST Value Buffer Solution at 20°C in Bag-in-Box
Reagecon’s NIST Value pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 1.00 Buffer Solution at 25°C in Bag-in-Box
Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:LiquidReagecon pH 6.96 Low Ionic Strength Buffer Solution at 20°C
Reagecon's Low Ionic Strength pH Buffer Solution at 20°C suitable for accurate measurement of low ionic strength samples. Tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.Color and Shape:Liquid