Chromium is a common and toxic heavy metal, among which hexavalent chromium is particularly harmful to human health and the environment due to its easy absorption by organisms. Hexavalent chromium can invade the human body through mucous membranes such as the digestive tract, respiratory tract, and skin. When entering the human body through the respiratory tract, it can cause damage to the nasal mucosa, and in severe cases, it may cause nasal septum perforation and bronchiectasis; When invading the digestive tract, it can cause vomiting and abdominal pain; Invasion through the skin can cause dermatitis and eczema; It is also a type of strong carcinogen.Total chromium reagent water quality testing

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Harvey Sen is dedicated to the field of environmental monitoring, specializing in the development, manufacturing, and sale of innovative, reliable, and cost-effective water quality testing instruments. Harvey attaches great importance to technological innovation and is committed to providing users with high-precision instruments and expert level services. Currently, the company has a strong R&D team. Our products are widely used in industries such as environmental monitoring, petrochemicals, public utilities, water cleaning and sewage treatment, electronics, and others where water pollution may affect production or pose a threat to life.