Introduction
Hach超純水測量分析型錄介紹有關超純水 pH 值和導電度測量分析的主要技術概述。提醒有關超純水的定義，pH和導電度的一般理論基礎，並提及主要影響的測試參數。

The purpose of this document is to give you an overview of the main technical points regarding the pH and conductivity measurements in ultra-pure water.
Ultra-pure water definition is reminded, general theoretical basis of pH and conductivity are presented and major influential parameters considered.

 

For pH, the ASTM D5128 is the standard test method for on line pH measurements of water of low conductivity (< 100μS/cm).

www.astm.org/Standards/D5128.htm

For conductivity, the ASTM D5391 is the standard test method for electrical conductivity and resistivity of a flowing high purity water sample.
www.astm.org/Standards/D5391.htm

 

This document highlights why Hach® pH and conductivity products fulfill the requirements of ultra-pure water measurements.  

點進下方型錄封面圖片下載型錄來進一步了解為什麼 Hach® pH 和導電度產品能夠滿足超純水測試要求。