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1.09445

Buffer solution

Name: Buffer solution
Brand: MM

(citric acid/sodium hydroxide/hydrogen chloride) traceable to SRM from NIST and PTB pH 4.00 (25°C) Certipur^®

别名:

Buffer solution pH 4.00 (25°C) (citric acid/sodium hydroxide/hydrogen chloride)

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About This Item

UNSPSC代码:

12161703

NACRES:

NA.25

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此商品	810800P	800811C	800811O
810811P 18:1 DGPP	810800P 08:0 DGPP	800811C 18:1 DG	800811O 18:1 DG
assay >99% (TLC)	assay >99% (TLC)	assay >99% (TLC)	assay >99% (TLC)
packaging pkg of 1 × 5 mg (810811P-5mg)	packaging pkg of 1 × 10 mg (810800P-10mg)	packaging pkg of 1 × 5 mL (800811C-10mg), pkg of 1 × 5 mL (800811C-25mg), pkg of 1 × 8 mL (800811C-200mg)	packaging pkg of 1 × 10 mg (with screw cap (800811O-10mg)), pkg of 2 × 100 mg (with screw cap (800811O-200mg)), pkg of 5 × 100 mg (with screw cap 800811O-500mg), pkg of 1 × 25 mg (with screw cap (800811O-25mg))
form powder	form powder	form liquid	form liquid
shipped in dry ice	shipped in dry ice	shipped in dry ice	shipped in dry ice
storage temp. −20°C	storage temp. −20°C	storage temp. −20°C	storage temp. −20°C
manufacturer/tradename Avanti Polar Lipids 810811P	manufacturer/tradename Avanti Polar Lipids 810800P	manufacturer/tradename Avanti Polar Lipids 800811C	manufacturer/tradename Avanti Polar Lipids

一般描述

The certified buffer solution (citric acid/sodium hydroxide/hydrogen chloride) is gravimetrically prepared using high-quality reagents, as per DIN EN ISO/IEC 17025. Its pH value of 4.00 at 25°C is calculated using a combined glass electrode following a 5-point calibration method. The measurement is made following DIN 19268 using reference buffer solutions compliant to DIN 19266, NIST, IUPAC, Ph. Eur, and USP. Its pH value is strongly dependent on the temperature and therefore a constant temperature must be maintained during its use.

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

Download your certificate at http://www.sigma-aldrich.com to view certified values, including uncertainty and expiry date.

应用

The buffer solution is used as a calibration standard in analytical procedures for pH measuring instruments or pH electrodes and as a control for measuring the pH of solutions.

特点和优势

Measured and qualified at an ISO/IEC 17025 and ISO 17034 accredited laboratory
Traceable to secondary reference standard from NIST and primary certified reference standard from PTB
Ready-to-use solution
Available in a sealed plastic bottle and sustainable Titripac^® packaging for a reduced waste generation
Accompanied with a detailed and batch-specific certificate of analysis (CoA) for an effective audit
Product label follows the ISO Guide 31 and contains information about ordering number, article description, lot number, safety data, and expiry date
Packaging material subjected to comprehensive stability studies as per ISO Guide 35

法律信息

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

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

储存分类代码

12 - Non Combustible Liquids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

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Buffer solution

(citric acid/sodium hydroxide/hydrogen chloride) traceable to SRM from NIST and PTB pH 4.00 (25°C) Certipur®

About This Item

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