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1.99050

Buffer solution

(boric acid/potassium chloride/sodium hydroxide) colour coded: blue, traceable to NIST and PTB pH 10.00 (25°C) Certipur®

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Pack SizeSKUAvailabilityPrice
500 mL
Please contact Customer Service for Availability
CZK 818.00
4 L
Please contact Customer Service for Availability
CZK 5,280.00

About This Item

NACRES:
NA.25
UNSPSC Code:
41116107

CZK 818.00

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Quality Segment

300

pH

10.0 (25 °C in H2O)

density

1.01 g/cm3 at 20 °C

storage temp.

15-25°C

General description

The blue colored boric acid/ potassium chloride/sodium hydroxide buffer solution is gravimetrically prepared at a registered calibration laboratory with high-quality reagents and water. Its pH value of 10.00 at 25°C is measured 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. The buffer pH is temperature dependent 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.

Application

The buffer is used as a standard to calibrate pH measuring instruments or pH electrodes and as a control to measure the pH of other solutions.

Features and Benefits

  • 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
  • Available in a secure 500 mL plastic bottle and 4 L innovative and sustainable Titripac® PE/Aluminum 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

Legal Information

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

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Buffer solution (boric acid/potassium chloride/sodium hydroxide) colour coded: blue, traceable to NIST and PTB pH 10.00 (25°C) Certipur®

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Buffer solution (boric acid/potassium chloride/sodium hydroxide), coloured: blue traceable to SRM from NIST and PTB pH 9.00 (20°C) Certipur®

Supelco

1.09476

Buffer solution

Buffer solution (boric acid/sodium hydroxide/hydrogen chloride), traceable to SRM from NIST and PTB pH 8.00 (25°C) Certipur®

Supelco

1.99038

Buffer solution

Buffer solution (boric acid/potassium chloride/sodium hydroxide), traceable to SRM from NIST and PTB pH 10.00 (25°C) Certipur®

Supelco

1.99004

Buffer solution

Quality Level

300

Quality Level

300

Quality Level

300

Quality Level

300

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

pH

10.0 (25 °C in H2O)

pH

9.0 (20 °C in H2O)

pH

8.0 (25 °C in H2O)

pH

10.0 (25 °C in H2O)

density

1.01 g/cm3 at 20 °C

density

1.00 g/cm3 at 20 °C

density

1.00 g/cm3 at 20 °C

density

1.0044 g/cm3 at 25 °C

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pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H360FD

Hazard Classifications

Repr. 1B

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

13840-56-7

CAS No.

13840-56-7

CAS No.

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Global Trade Item Number

SKUGTIN
199050050004027269386894
199050400004027269386900

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