Accéder au contenu
Merck
Toutes les photos(1)

Documents

1.99022

Supelco

Buffer Solution

(di-sodium hydrogen phosphate/sodium hydroxide) traceable to SRM from NIST und PTB pH 12.00 (25°C) Certipur®

Synonyme(s) :

Buffer solution pH 12.0 (25 °C in H2O) (di-sodium hydrogen phosphate/sodium hydroxide)

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(1)

About This Item

Code UNSPSC :
12161705
Nomenclature NACRES :
NA.25

Qualité

certified reference material

Niveau de qualité

300

Gamme de produits

Certipur®

pH

12.0 (25 °C in H2O)

Densité

1.00 g/cm3 at 20 °C

Application(s)

environmental
food and beverages
general analytical
industrial qc
pharmaceutical

Format

mixture

Température de stockage

15-25°C

Description générale

The di-sodium hydrogen phosphate/sodium hydroxide buffer solution is gravimetrically prepared at a registered calibration laboratory with high-quality reagents and water. Its pH value of 12.00 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 strongly depends 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.

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.

Caractéristiques et avantages

  • 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 30 mL sachets as a ready-to-use solution and in 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

Informations légales

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

Pictogrammes

Corrosion
GHS05

Mention d'avertissement

Danger

Mentions de danger

H314

Classification des risques

Eye Dam. 1 - Skin Corr. 1

Code de la classe de stockage

8B - Non-combustible, corrosive hazardous materials

Classe de danger pour l'eau (WGK)

nwg

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Les clients ont également consulté

Slide 1 of 7

1 of 7

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

Supelco

1.99004

Solution tampon

Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (25°C) Certipur®

Supelco

1.09441

Buffer solution

Solution tampon (potassium hydrogen phthalate), traceable to SRM from NIST and PTB pH 4.01 (25°C) Certipur®

Supelco

1.99001

Solution tampon

Buffer solution (glycine/sodium chloride/hydrogen chloride), traceable to SRM from NIST and PTB pH 1.00 (20°C) Certipur®

Supelco

1.09432

Buffer solution

Buffer solution (di-sodium tetraborate)tracable to SRM from NIST and PTB pH 9.18 (25°C) Certipur®

Supelco

1.99019

Buffer solution

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

Supelco

1.99064

Buffer solution

Buffer solutions traceable to NIST, traceable to PTB, pH 4.01 (25 °C, phthalate), pH 7.00 (25 °C, phosphate), pH 9.00(borate), Certipur®

Supelco

1.99005

Buffer solutions

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique