If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
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Nombre del producto
Patrón de agua al 0,1 %, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H2O Aquastar®
grade
certified reference material
Quality Level
agency
ISO 17025, 17034
product line
Aquastar®
form
liquid
autoignition temp.
287 °C (Information refers to the main component.)
expl. lim.
1.7-11.5 % (v/v) Information refers to the main component.()
reaction suitability
reaction type: water standard for Karl Fischer titration
packaging
ampule of 10 × 8 mL
technique(s)
Karl-Fischer titration: suitable
titration: suitable
bp
119 °C/1013 hPa
transition temp
flash point 31 °C (Information refers to the main component.)
density
0.92 g/cm3 at 20 °C
format
single component solution
storage temp.
15-25°C
Categorías relacionadas
1 of 4
Este artículo | 1.88050 | 1.88052 | 1.88054 |
|---|---|---|---|
| agency ISO 17025, 17034 | agency ISO 17025 | agency ISO (17025, 17034) | agency ISO 17025, 17034 |
| grade certified reference material | grade reference material | grade certified reference material | grade certified reference material |
| format single component solution | format single component solution | format single component solution | format neat |
| product line Aquastar® | product line Aquastar® | product line Aquastar® | product line Aquastar® |
| form liquid | form liquid | form liquid | form solid |
| autoignition temp. 287 °C (Information refers to the main component.) | autoignition temp. 465 °C | autoignition temp. 287 °C (DIN 51794,Information refers to the main component.) | autoignition temp. - |
General description
Visite los certificados ISO y las autoevaluaciones de calidad del sitio para acceder a los vigentes certificados de acreditación.
Descargue su certificado en http://www.sigma-aldrich.com para ver los valores certificados, incluidas la incertidumbre y la fecha de caducidad.
Application
Features and Benefits
- Envasados en cómodas ampollas de vidrio de 8 ml en cajas de 10 ampollas de un solo uso
- Se suministra con un certificado de análisis (CoA) específico de lote que contiene datos sobre el contenido exacto de agua medida, la incertidumbre, el método de análisis, el lote NIST y la vida útil mínima
- Medidos y cualificados en un laboratorio acreditado por la ISO/IEC 17025 y la ISO 17034
- Compatible directamente con las unidades del SI (kg) y verificado mediante SRM 2890 del NIST
Packaging
Analysis Note
Legal Information
related product
signalword
Warning
hcodes
Hazard Classifications
Flam. Liq. 3 - STOT SE 3
target_organs
Central nervous system
Clase de almacenamiento
3 - Flammable liquids
wgk_germany
WGK 1
flash_point_f
88.7 °F - closed cup - Information refers to the main ingredient.
flash_point_c
31.5 °C - closed cup - Information refers to the main ingredient.
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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Artículos
Methods including internal extraction, external extraction, and Karl Fischer oven ensure accurate water content determination by titration.
New Aquastar® Karl Fischer Anolyte for precise and reproducible determination of low water content in the range of 10 ppm to 10000 ppm for cells without a diaphragm.
SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.
Protocolos
Karl Fischer titration offers accurate water content determination in hemp samples compared to the loss on drying method.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
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Can this standard be used for volumetric Karl Fischer titration?
1 answer-
The water content of this standard is determined by coulometric Karl Fischer Titration according to ISO 760. Suitability for use in volumetric Karl Fischer has not been determined and analytical values reported in the Certificate of Analysis apply only to the coulometric method. The Water Standard Oven 1%, product 1.88054, is suitable for both volumetric and coulometric methods. Please see the link below to review this product option:
https://www.sigmaaldrich.com/product/mm/188054Helpful?
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