Merck
All Photos(1)

1.88054

Supelco

Water Standard Oven 1%

Certified Reference Material for KF oven method Aquastar®

All Photos(1)

Recommended Products

Slide 1 of 10

1 of 10

Water standard 0.1% Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar®

Supelco

1.88051

Water standard 0.1%

Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar®

Lactose Standard 5 % Certified Reference Material for Karl Fischer Titration Aquastar®

Supelco

1.12939

Lactose Standard 5 %

Certified Reference Material for Karl Fischer Titration Aquastar®

Water standard 1% Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H₂O Aquastar®

Supelco

1.88052

Water standard 1%

Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H₂O Aquastar®

Water standard 5 mg/ml (1 ml contains 5 mg H₂O) Aquastar®

Supelco

1.09259

Water standard 5 mg/ml

(1 ml contains 5 mg H₂O) Aquastar®

Water Standard 0.01 % Reference Material for coulometric Karl Fischer Titration 1 g ≙ 0.1 mg H₂O Aquastar®

Supelco

1.88050

Water Standard 0.01 %

Reference Material for coulometric Karl Fischer Titration 1 g ≙ 0.1 mg H₂O Aquastar®

Water standard oil Certified Reference Material for Karl Fischer Titration (oil matrix 15-30 ppm H2O) Aquastar®

Supelco

1.88055

Water standard oil

Certified Reference Material for Karl Fischer Titration (oil matrix 15-30 ppm H2O) Aquastar®

CombiCoulomat fritless Karl Fischer reagent for coulometric water determination for cells with and without diaphragm Aquastar®

Supelco

1.09257

CombiCoulomat fritless

Karl Fischer reagent for coulometric water determination for cells with and without diaphragm Aquastar®

Sodium tartrate dihydrate Certified Reference Material for Karl Fischer Titration 15.66% Aquastar®

Supelco

1.06664

Sodium tartrate dihydrate

Certified Reference Material for Karl Fischer Titration 15.66% Aquastar®

CombiTitrant 5 one-component reagent for volumetric Karl Fischer titration 1 ml ≙ ca. 5 mg H₂O Aquastar®

Supelco

1.88005

CombiTitrant 5

one-component reagent for volumetric Karl Fischer titration 1 ml ≙ ca. 5 mg H₂O Aquastar®

CombiCoulomat frit Karl Fischer reagentfor the coulometric water determinationfor cells with diaphragm Aquastar®

Supelco

1.09255

CombiCoulomat frit

Karl Fischer reagentfor the coulometric water determinationfor cells with diaphragm Aquastar®

grado

certified reference material

Nivel de calidad

300

Agency

ISO 17025, 17034

Línea del producto

Aquastar®

formulario

solid

technique(s)

Karl-Fischer titration: suitable
titration: suitable

densidad aparente

460 kg/m3

formato

neat

temp. de almacenamiento

15-25°C

Related Categories

Descripción general

It is a solid standard prepared gravimetrically from high-purity reagents. The water content of it is determined by coulometric Karl Fischer oven method at 170°C with an extraction time of 600 seconds following ISO 760. Additionally, its measured water content is verified by thermogravimetric analysis. Unlike other solid standards such as tartrate, lactose, or citrate, the water standard oven 1% has significantly lower water content and can be used over a broad temperature range of 150°C to 400°C due to its inorganic composition. It is characterized in accredited quality control (QC) laboratory according to DIN EN ISO/IEC 17025.

Aplicación

Water standard oven 1% is used as certified reference material to check the accuracy of coulometric and volumetric water determinations, according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources”, using Karl Fischer oven and thermobalances. But its low water content of 1% makes it particularly suitable for water determinations using Karl Fischer oven with a coulometer.

Envase

5 , 5 g

Características y beneficios

  • Packed in convenient glass bottles with the material subjected to stability and homogeneity studies following ISO 17034 and ISO Guide 35
  • Supplied with a batch-specific certificate of analysis (CoA) having data on exact measured water, uncertainty, method of analysis, measuring method, and minimum shelf life
  • Characterized in an ISO/IEC 17025 and ISO 17034 accredited calibration laboratory
  • Directly traceable to SI unit (kg)

Ligadura / enlace

Replaces: 1.88054.0005

Información legal

AQUASTAR is a registered trademark of Merck KGaA, Darmstadt, Germany

Código de clase de almacenamiento

13 - Non Combustible Solids

WGK

WGK 2

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Quality

Enter Lot Number to search for Certificate of Quality (COQ).

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service