Chemical reagents, production inspection items??

Summary. Whether a test report is required for chemical reagents depends on the specific environment and purpose of use. In some cases, for specific chemical reagents or applications, relevant regulations or standards may require corresponding test reports to ensure that they meet safety, environmental protection and quality requirements.

Whether a test report is required for chemical reagents depends on the specific use environment and use. In some cases, for some specific chemical reagents or uses, relevant regulations or standards may require corresponding inspection chain reports to ensure that they meet the requirements of safety, environmental protection and quality.

I'm still a little confused, can you be more detailed?

For example, in China's "Regulations on the Safety Management of Hazardous Chemicals", safety requirements for the production, storage, use, and transportation of hazardous chemicals are stipulated, and there are corresponding requirements and strict management measures for different types of chemical reagents. In addition, in some laboratories or scientific research institutions, in order to ensure the accuracy and reliability of the experiment, the purity and composition of chemical reagents will also be tested and the corresponding test reports will be generated. In short, whether a chemical reagent needs a test report or not depends on the specific situation.

If the user has relevant requirements, he can consult with the ** business or the corresponding management agency.

Key testing items:

Content, heterogram broad elements, particle size, whiteness, color, ash, acidity, alkalinity, moisture, refractive index, density, viscosity, melting point, boiling point, volatile matter, soft cleaning point, crystallization temperature, insoluble matter, pH value, iodine absorption value, oil absorption value, pore volume, pore size, specific surface area. Answer: Content testing, ingredient identification, ingredient analysis and formula reduction, etc

There are a variety of chemical inspection tool body testing items.

Sometimes it is necessary to test raw materials, such as H2SO4 entering the factory, and it is necessary to detect the content of H2SO4, free sulfuric anhydride, N2O3, ignition residue, iron, arsenic, SO2, chlorine, manganese, transparency, color, etc.

Sometimes it is necessary to test the process, such as ordinary steel production, it is often necessary to test whether the content of C, S, P, SI and Mn is qualified, and if it is unqualified, the technician is required to make adjustments.

Sometimes it is necessary to test the quality of the finished product, such as the determination of the mineral content in mineral water, etc.

What items to measure, there are too many gases, liquids, and solids, and strong acids and alkalis are also often contacted. For example, gas samples, oxygen content, hydrogen content, nitrogen content, etc., water samples to measure alkalinity, hardness, pH value, five-day biochemical oxygen demand, COD. Solids are more troublesome, and they are generally dissolved with strong acids before doing experiments.

Some need to be distilled, and some have to be burned at thousands of degrees with an alcohol blowtorch. In addition, some of the standard solutions used in the experiment are also configured by themselves, and the calibration is very troublesome, and some need a high temperature and constant weight of 800 degrees before they can be used.

Hope it helps.

Depending on what kind of enterprise it is, the items inspected by different enterprises are different.