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
1.88051
Water Standard
0.1%, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H₂O Aquastar®
Synonym(e):
Wasserstandard 0,1 % für coulometrische Karl-Fischer-Titration
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Produktname
Wasserstandard 0,1 %, Certified Reference Material for coulometric Karl Fischer Titration 1 g ≙ 1 mg H2O Aquastar®
Qualität
certified reference material
Qualitätsniveau
Agentur
ISO 17025, 17034
Produktlinie
Aquastar®
Form
liquid
Selbstzündungstemp.
287 °C (Information refers to the main component.)
Expl.-Gr.
1.7-11.5 % (v/v) Information refers to the main component.()
Eignung der Reaktion
reaction type: water standard for Karl Fischer titration
Verpackung
ampule of 10 × 8 mL
Methode(n)
Karl-Fischer titration: suitable
titration: suitable
bp
119 °C/1013 hPa
Übergangstemp.
flash point 31 °C (Information refers to the main component.)
Dichte
0.92 g/cm3 at 20 °C
Format
single component solution
Lagertemp.
15-25°C
1 of 4
Dieser Artikel | 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. - |
Allgemeine Beschreibung
Die aktuellen Akkreditierungszertifikate können unter ISO-Zertifikate und qualitätsbezogene Standort-Selbstbewertungen abgerufen werden.
Laden Sie das Zertifikat auf http://www.sigma-aldrich.com herunter, um die zertifizierten Werte, einschließlich Unsicherheiten und Verfallsdatum, zu erhalten.
Anwendung
Leistungsmerkmale und Vorteile
- In praktischen 8-mL-Glasampullen mit 10 Einwegampullen in einem Karton verpackt.
- Dem Produkt liegt ein chargenspezifisches Analysenzertifikat (CoA) mit Daten zum genauen, gemessenen Wassergehalt der Charge, zur Messunsicherheit, zur Analysemethode, zur NIST-Charge und zur Mindesthaltbarkeit bei.
- In einem nach ISO/IEC 17025 und ISO 17034 zertifizierten Labor gemessen und qualifiziert.
- Direkt rückführbar auf die SI-Basiseinheit (kg) und durch SRM 2890 vom NIST verifiziert.
Verpackung
Hinweis zur Analyse
Rechtliche Hinweise
Ähnliches Produkt
Signalwort
Warning
H-Sätze
Gefahreneinstufungen
Flam. Liq. 3 - STOT SE 3
Zielorgane
Central nervous system
Lagerklassenschlüssel
3 - Flammable liquids
WGK
WGK 1
Flammpunkt (°F)
88.7 °F - closed cup - Information refers to the main ingredient.
Flammpunkt (°C)
31.5 °C - closed cup - Information refers to the main ingredient.
Analysenzertifikate (COA)
Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
Artikel
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Protokolle
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 Antwort-
Hilfreich?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 Antwort-
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
Hilfreich?
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Can this standard be used for volumetric Karl Fischer titration?
1 Antwort-
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/188054Hilfreich?
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