哈希試劑pH Standard, IUPAC, pH4.005 at 25

Each bottle （500 mL） is supplied with a COFRAC Verification Certificate and Certificate of Conformity and Traceability drawn up according to ISO31.

• Total Control of the traceability chain and calculated uncertainties
• Direct traceability to primary standards and the reference method
• The competence and integrity of a laboratory internationally recognized to be accredited for the measurement of pH and conductivity reference materials

  哈希試劑pH Standard, IUPAC, pH4.005 at 25

• Total Control of the traceability chain and calculated uncertainties

  Direct traceability to primary standards and the reference method

  The competence and integrity of a laboratory internationally recognized to be accredited for the measurement of pH and conductivity reference materials

  Specifications

  Concentration:4.005 ± 0.010 pH bij 25 °C

  Description :traceable to IUPAC pH scale and NIST

  Footnote:¹Behalve pH 7,000 door ons geformuleerd in overeenstemming met NIST-, IUPAC- en DIN19266-specificaties van pH 6,865 en pH 7,413 ²Dansk Fundamental Metrologi A/S is geaccrediteerd voor pH-metingen door het Deense accrediteringsorgaan Danske Akkrediterings- og Metrologifond （DANAK） （nr. 255）

  NIST Traceable:yes

  Parameter:pH

  Platform :Buffer

  Quantity:500 mL

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