The pH value of the test solution was determined every day, the appearance changes and odor emission were observed, and the number of bacteria and fungi were determined after 5 days of ventilation and 2 days of deaeration. Repeat until the water-based metal cutting fluid deteriorates. Due to the microbial reproduction process, cellular respiration releases CO2 and the organic acids produced in the degradation process will cause the pH value to drop. Therefore, the biological stability of water-based metal cutting fluid can be evaluated by the degree of pH reduction and the degree of microbial reproduction

The filter paper was cut into 1cm diameter round paper, soaked and drained in the tested bactericide, and then the paper was stuck in the center of the AGAR plate with inoculated bacteria, and cultured at 36℃ for 48h. If the fungicide has a bacteriostatic effect

In general, liquid fertilizers need to be added in the production and storage process to prevent the growth of bacteria, mold and other microorganisms, thereby extending the validity of the fertilizer and ensuring fertilizer efficiency. In particular,

There are many kinds of sterilization preservatives, which can be divided into inorganic sterilization preservatives and organic sterilization preservatives according to the different molecular structures.

What problems should be considered in the use of bactericidal preservatives in coatings

What is the difference between anti-mold and mildew agent? Mycotoxins already exist in raw materials. In order to avoid the harm of mycotoxins to animals, mildew removal agents are added to absorb and discharge mycotoxins. At present, the main anti-mildew agents are organic acids and their salts.

Preservatives are a kind of food additives that can inhibit microbial activity and prevent food spoilage. In order to make the food have a certain storage period, certain measures must be taken to prevent the infection

A preservative is a substance that prevents the growth of microorganisms in a product. The effect of preservatives on microorganisms can only

As the name suggests, wood preservatives are mainly a wood treatment agent for wood treatment, effective bactericidal and bactericidal. Wood preservatives adopt new nanotechnology, anti-corrosion effect is better

In high humidity environments, leather products are vulnerable to mold and fungi, resulting in damage and reduced quality. In order to protect leather from mold, a series of high-quality leather mildew prevention products have been introduced.