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Merck

1.88052

Water standard 1%

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

別名:

Water standard 1% for volumetric Karl Fischer Titration

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この商品について

NACRES:
NA.24
UNSPSC Code:
41115601
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grade

certified reference material

Quality Segment

agency

ISO (17025, 17034)

product line

Aquastar®

form

liquid

autoignition temp.

287 °C (DIN 51794,Information refers to the main component.)

expl. lim.

1.7 % (v/v)

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

mp

-95 °C

transition temp

flash point 31 °C (Information refers to the main component.)

density

0.92 g/cm3 at 20 °C

format

single component solution

General description

Water standard 1% is prepared using high-purity water and reagents by the gravimetric method. Its characterization is carried out 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

Water standard 1% can be used for:
  • Evaluating the accuracy of coulometric Karl Fischer titrators according to ISO 9001 chapter 7.1.5 “Monitoring and measuring resources” as a Certified reference material (CRM)
  • Checking the accuracy of measured results according to European Pharmacopeia (Ph.Eur.) chapter 2.5.32 “Water Micro Determination”
  • Standardizing titrants according to European Pharmacopeia (Ph.Eur.) chapter 2.5.12 “Water Semi-Micro Determination” and the United States Pharmacopeia <921> “Water Determination”
  • Titer determinations using volumetric method with one component and two component reagents

Features and Benefits

  • Packed in convenient 8 mL glass ampoules and 10 single-use ampoules in a box
  • Supplied with a batch-specific digital certificate of nalysis (CoA) having data on the 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 calibration 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 SmartChemicals for Titration.

Analysis Note

Assay (H₂O): 9.90 - 10.10 mg/g

Legal Information

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


pictograms

FlameExclamation mark

signalword

Warning

hcodes

Hazard Classifications

Flam. Liq. 3 - STOT SE 3

target_organs

Central nervous system

保管分類

3 - Flammable liquids

flash_point_f

87.8 °F - closed cup - Information refers to the main component.

flash_point_c

31 °C - closed cup - Information refers to the main component.


適用法令

試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

Group 4: Flammable liquids + Type 2 petroleums + Hazardous rank III + Water soluble liquid

fsl



試験成績書(COA)

製品のロット番号・バッチ番号を入力して、試験成績書(COA) を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。

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