ISO 23496:2019
Determination of pH value — Reference buffer solutions for the calibration of pH measuring equipment
Determination of pH value — Reference buffer solutions for the calibration of pH measuring equipment
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 13
- Дата публикации:
- 12 июля 2019 г.
- Издание:
- ISO IS 23496 edition 1 version 1
- ICS:
- 87.040
This document specifies reference buffer solutions for the calibration of pH measuring equipment.
Abstract
Overview
ISO 23496:2019 specifies reference buffer solutions for the calibration of pH measuring equipment. It defines the composition, preparation and metrological basis for primary and secondary pH reference buffers (pH(R)) used to assign accurate pH values to calibration standards. The standard supports traceable pH calibration by describing electrochemical measurement methods, uncertainty expectations, and preparation guidelines for commonly used buffer materials.
Похожие стандарты
Стандарты, упомянутые в описании