| Project Background

Conductivity refers to the ability of a substance to conduct electric current and is the reciprocal of resistivity. It indicates the number of ions present in water and directly reflects the inorganic purity of purified water. Together with TOC (Total Organic Carbon, the organic purity indicator), it constitutes the two core pillars of purified water quality monitoring. Both pharmacopeias and industry standards set stringent, staged conductivity limits for purified water, defined across different temperature conditions.

| Project Overview

In this test, a benchtop ultrapure water conductivity meter was used to analyze the conductivity of purified water samples. The working principle of the conductivity meter is based on Ohm’s law and the theory of solution conductivity. By measuring the conductive capacity of ions in an aqueous solution, it indirectly reflects the total ion concentration.

| Test Objective

1. Regulatory and industry compliance;

2. Monitoring the operational stability of purified water systems;

3. Providing critical data support for system maintenance, cleaning validation, and deviation investigation;

| Testing Standards

GB/T 6682 Water for analytical laboratory use--Specification and test methods

ASTM D1193 Standard Specification for Reagent Water

GB/T 11446.4 Test methods for resistivity of electronic grade water

| Service Products / Fields

Consumer electronics, automotive electronics, semiconductor manufacturing, pharmaceutical biotechnology, aerospace, new energy electronics, laboratories, and analytical testing.

| MTT Advantages

1. Professional Team: A team of highly experienced testing engineers and technical experts.

2. Advanced Equipment: Equipped with internationally leading testing instruments to ensure accuracy and reliability of results. Extremely high sensitivity (measurement range: 0.001 μS–3000 mS), combined with high efficiency and cost-effectiveness.

3. Efficient Service: Rapidly respond to customer needs and provide one-stop, high-efficiency inspection services.

4. Authoritative Certification: The laboratory is certified by ISO/IEC 17025, ensuring that test reports have international credibility.