Pure water mass flowmeter

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1. Purified water quality standard

Purified water quality standard. I believe everyone is familiar with purified water, which is pure water without any additives. Purified water can be detected through some methods. Next, I will take you to learn about the relevant content of purified water quality standards. Purified water quality standard 1

1. pH: Take 10ml of this product, add 2 drops of methyl red indicator solution, and do not show red color; Take another 10ml and add 5 drops of bromothymol blue indicator solution, which should not show blue color.

2、 Chloride, sulfate, and calcium salts: Take this product and place it in three separate test tubes, each tube containing 50ml. Add 5 drops of nitric acid and 1ml of silver nitrate test solution to the first tube, 2ml of barium chloride test solution to the second tube, and 2ml of ammonium oxalate test solution to the third tube, all without turbidity.

3、 Distillation methods can be divided into glass and quartz stills according to the distillation vessel, and metal materials such as copper, stainless steel, and platinum stills. According to the number of distillations, it can be divided into primary, secondary, and multiple distillation methods. In addition, in order to remove some unique impurities, special measures need to be taken. Pure water is an inorganic compound with the chemical formula H2O, a liquid with a certain structure. Although it is not rigid, its arrangement of molecules is much more regular than that of gaseous water. In liquid water, water molecules do not exist as individual molecules, but rather as clusters of water molecules (H2O) formed by hydrogen bonding. Therefore, the orientation and motion of water molecule

s will be significantly influenced by other surrounding water molecules. There is no definite structural model for the structure of water, and there are mainly three types that are widely accepted: mixed type, gap filling type, and continuous structure (or uniform structure) model. What are the quality standards for purified water in Pharmacopoeia 2? The Chinese Pharmacopoeia stipulates that purified water needs to be tested for TOC, conductivity, microbial limit, nitrate, acidity and alkalinity, heavy metals, pH, and other test items. The testing frequency and qualification limit for different test items are also different. The qualification limit for TOC is 500ppb. Characteristics of purified water equipment: 1. The quality of the produced water meets the requirements of relevant pharmacopoeias and operates stably;

2、 Multiple disinfection methods are available: activated carbon pasteurization, CIP cleaning system, distribution system ozone sterilization, distribution system pasteurization;

3、 Single and dual pipeline design: The production and return water circulation pipelines operate separately, reducing blind spots in the system and avoiding microbial growth;

4、 The new flowmeter instrument and sampling valve switch facilitate inspection, operation, and sampling hygiene.

5、 Preferred quality accessories processing and manufacturing core, material selection emphasizes quality, advanced processing technology manufacturing.

6、 Intelligent electronic control system reduces mechanical failures and is safer.

7、 Equipment manufacturing and production drawings are standardized, streamlined, and ensure equipment quality.

8、 Patented process design, small footpri

1. Purified water quality standard

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