Merck, 1880520012, Water standard 1%

Name: Water standard 1%
Brand: Merck
SKU: 1880520012

Size:10 x 8 mL, Water standard 1% for volumetric Karl Fischer Titration, Certified Reference Material for volumetric Karl Fischer Titration 1 g ≙ 10 mg H₂O Aquastar®

Catalog Number: 1880520012

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Category

Karl Fischer Reagents

TagsAnalytical Chemistry Analytical Reagents Karl Fischer Reagents

CollectionsMerck Analytical Reagents Collection Merck Cell Culture Supplements & Reagents: Complete Solutions for Research & Bioproduction Merck Roche Life Science Products for PCR, RT‑PCR & Nucleic Acid Purification

Manufacturer's Pagewww.sigmaaldrich.com/US/en/product/MM/188052

Description

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

Specifications

General

NACRES	NA.24
UNSPSC Code	41115601
grade	certified reference material
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
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
Quality Level	300

Ordering

Notice

Unless otherwise stated, the minimum order amount is USD 1,000.
For orders below USD 1,000, an additional handling fee may apply, or we may arrange local delivery / local handover where available.
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