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  • VVNA | Definition of Turbidity and the Importance of Turbidity Meters: The Core Value of VVNA Portable Turbidity Meters in Water Quality Monitoring

    Turbidity, defined as the cloudiness of water, is an optical indicator that measures the reduction in water transparency caused by insoluble substances. These substances include solid particles (such as sediment, humus, and planktonic algae···
    VVNA | Definition of Turbidity and the Importance of Turbidity Meters: The Core Value of VVNA Portable Turbidity Meters in Water Quality Monitoring

    04-21

    2021

    >
  • Daily Life Killer — Residual Chlorine (Free Chlorine)

    Currently, more than 80% of water plants worldwide still adopt chlorination disinfection, and municipal tap water in China is no exception. As required by the Standards for Drinking Water Quality (GB 5749-2006), a certain amount of residual···
    Daily Life Killer — Residual Chlorine (Free Chlorine)

    03-10

    2021

    >
  • Water Safety 101 | Risks of Excessive Residual Chlorine in Water

    As a common disinfectant component in tap water, swimming pool water and other types of water, residual chlorine can effectively kill pathogens and ensure water safety at a reasonable concentration, serving as an important barrier for maint···
    Water Safety 101 | Risks of Excessive Residual Chlorine in Water

    12-24

    2020

    >
  • VVNA | How to Judge Water Quality Using a Water Quality Tester? Interpretation of Key Indicators and Practical Operation Guide

    Water quality is not something invisible or intangible. With the help of portable pH meters, portable dissolved oxygen meters, portable COD meters, portable ammonia nitrogen meters, portable heavy metal detectors and other devices, every in···
    VVNA | How to Judge Water Quality Using a Water Quality Tester? Interpretation of Key Indicators and Practical Operation Guide

    08-29

    2020

    >
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