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1.88051

Water Standard

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

Synonym(s):

Water standard 0.1% for coulometric Karl Fischer Titration

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About This Item

UNSPSC Code:
41115601
NACRES:
NA.24
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Product Name

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

grade

certified reference material

Quality Segment

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

application(s)

cannabis testing

format

single component solution

storage temp.

15-25°C

General description

The 0.1% water standard is prepared gravimetrically from high-purity water and reagents. Its characterization is performed at an accredited quality control (QC) laboratory according to DIN EN ISO/IEC 17025. The water content of the standard is measured by direct coulometric Karl Fischer titration.

Please visit ISO certificates and Site Quality Self-Assessments to access the current certificates of accreditation.

In our effort to be more sustainable, we′re going digital with COAs-download them directly from our website. Download your certificate at https://www.sigmaaldrich.com/US/en/documents-search to view certified values, including uncertainty and expiry date.

Application

It is used as a certified reference material (CRM) to verify the accuracy of coulometric Karl Fischer titrators according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources”. It can also be used to check the accuracy of measured results according to European Pharmacopeia (Ph.Eur.) chapter 2.5.32 “Water Micro Determination.” Although preferable for use in coulometric method, it can be used to verify the low water content by volumetric method.

Features and Benefits

  • Packed in convenient 8 mL glass ampoules with 10 single-use ampoules in a box
  • Supplied with a batch-specific digital certificate of analysis (CoA) having data on exact measured water content of the batch, uncertainty, method of analysis, the NIST batch, and minimum shelf life
  • Measured and qualified in an ISO/IEC 17025 and ISO 17034 accredited laboratory
  • Directly traceable to SI unit (kg) and verified by SRM 2890 from NIST

Packaging

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals.

Analysis Note

Assay (H₂O): 0.970 - 1.030 mg/g

Legal Information

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

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Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Codes

H226,H336

Hazard Classifications

Flam. Liq. 3 - STOT SE 3

Target Organs

Central nervous system

Storage Class

3 - Flammable liquids

WGK

WGK 1

Flash Point (°F)

88.7 °F - closed cup - Information refers to the main component.

Flash Point (°C)

31.5 °C - closed cup - Information refers to the main component.

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Certificates of Analysis (COA)

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