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　　1) How to use cleaners correctly

　　Remove the stain, while protecting the surface of the object, so as to really achieve the purpose of cleaning.

　　Cleaners are generally divided into three categories: acidic, alkaline, and neutral. But one thing to note is that no matter any high-end decorative materials, you can't use detergents that are too acidic and alkaline. Before using them, you must understand the nature, concentration and scope of use of this detergent in detail. Consider the following points when using cleaners:

　　Use the cleaners appropriate to the task

　　Accurately diluted in water at the right temperature

　　Dissolve completely before use

　　Use cleaning equipment and wash the traces of detergent on it after use

　　Acid and alkaline cleaners must be washed after use

　　Any kind of cleaning agent can only achieve the best effect at the appropriate concentration, not the higher the concentration, the better the effect, sometimes the concentration is too high, but it has a destructive effect.

　　2) How to use acid and alkali cleaners correctly

　　Acid cleaners can remove lime marks, cement marks, scale, and stubborn stains often found in toilets, as well as various metal marks on the surface of the cleaning object. The alkaline cleaner can remove various oil stains and remove the wax layer on the ground. However, if this cleaner is used improperly, in addition to causing waste of detergent, it will damage the surface of the cleaned object to varying degrees, and may even cause damage to the user's skin. Therefore, pay attention to the following points when using acid-based cleaners:

　　1. To be clear about its use, understand the nature of the cleaning object before use, and preliminarily confirm whether an acidic cleaner can be used. Before using any acid, the person in charge of the site should conduct an experiment, and should not be used blindly (in the corner during the experiment).

　　2. Dilute the cleaning agent according to the proportion listed in the instruction manual, and dilute it from a small concentration to a large concentration. The stock solution is not available.

　　3, the use of gloves must be used to avoid skin or eye contact with detergent.

　　4, the cleaning agent should not stay on the surface of the cleaned object for too long, and a large amount of clean water should be used after cleaning.

　　5, acid cleaning agent is not suitable for marble, marble, glass, stainless steel, aluminum alloy and other metal surface cleaning.

　　6. The preparation and dilution of acidic/alkaline cleaners should be operated by the supervisor or the person in charge of the site. No one else shall prepare and dilute acidic/alkaline cleaners without permission.

　　7. Use acidic/alkaline cleaners, and take protective measures against surrounding objects and personnel, and place signs.

　　8, because the detergent is not absolutely neutral, so when cleaning the toilet, take away the clean bottles, cans, barrels, wash the ground with clean water.

　　9. Acid cleaners should not be installed in the water tank of the washing machine to be cleaned mechanically to prevent acid damage to the chassis of the machine; if a water suction machine is used to absorb stains containing acid water during work, a water suction machine with a plastic water storage bucket should be used. Clean the machine thoroughly with clean water.

　　10. Establish a management system for the use of acidic/alkaline cleaners, strictly control the use of acidic/alkaline cleaners, and carefully train cleaning staff to use acidic/alkaline cleaners correctly.