Circulating Water Testing

1. Introduction to Circulating Water Testing

Circulating water is mainly categorized into industrial and domestic types, with the primary purpose of water conservation. Industrial circulating water is primarily used in cooling water systems, hence also known as circulating cooling water, as industrial cooling water accounts for over 90% of total water usage. Domestic circulating water is mainly used in water heaters.

2. Testing Scope

Industrial circulating water, air conditioning circulating water, chemical circulating water, cooling circulating water, coal washing circulating water, boiler circulating water, paint spraying circulating water, cooling tower circulating water, etc.

3. Testing Items

Turbidity testing, chloride ion testing, total hardness testing, slime content, free chlorine testing, total bacterial count testing, adhesion rate testing, copper ion testing, corrosion rate testing, calcium ion testing, total phosphorus testing, alkalinity testing, microbial testing, sulfate ion testing, zinc ion testing, chemical composition testing, component content testing, component analysis, etc.

4. Testing Standards

"Hydraulic Model Test Code for Inlet Flow Channels of Power Plant Circulating Water Systems" DL/T 286-2012

"Design Code for Industrial Circulating Water Cooling" GB/T 50102-2014

"Water Quality Standard for Central Air Conditioning Circulating Water Systems" T/KT S008888-2019

"Water Quality Standard for Central Air Conditioning Circulating Water and Circulating Cooling Water" DB44/T115-2000

"Technical Specification for Energy-Saving Circulating Water Systems in the Metallurgical Industry" YB/T 4469-2014