What are the latex gloves and nitrile gloves used for?
PVC gloves Material: Polyvinyl chloride Advantages: low price, can add pigments, bright colors Disadvantages: Contains higher plasticizer (internationally recognized public enemy), heat and volatile harmful gases, non-degradable latex gloves Material: natural latex (NR Advantages: good elasticity, degradable Disadvantages: sensitization reaction in some people. Nitrile gloves Material: NBR, a synthetic rubber, the main components are acrylonitrile and butadiene. Advantages: no allergies, degradable, pigments can be added, color is better Bright defects: poor elasticity, the price is higher than the latex product ESD refers to the anti-static properties of the product, it is generally believed that the nitrile rubber products have anti-static properties, while PVC and latex do not have anti-static properties, not suitable for ESD areas actually nitrile gloves The antistatic performance also depends on the formula of the glue maker. The ESD performance of the glue produced by different manufacturers is different (there is little relationship with the glove manufacturer), and even the products made of the same glue have different performances. Therefore, it can be used as a general anti-static glove, but its performance is lower than that of professional anti-static gloves.
Grading is for clean room gloves, which is common in sales and use processes.
For example, the gloves used in the class 100 clean room conditions can be called class100 gloves, which are generally made of latex and nitrile rubber, which are used more in the clean room.
Why is it not standardized? At present, there is no clear standard for glove grading in the world. For example, IEST-RP-CC005.3 only regulates the test methods and testing items of clean room gloves, and there is no grade standard. At the same time, there are no national standards or industry standards, and only internal standards set by individual companies
Therefore, only a single enterprise product can be recommended for use in the clean room at classXXX level, without the use of common standards.
How to distinguish: the main difference (not the only difference) of different levels of gloves lies in the number of particles (particles), the number of gloves is low (the higher the class value is, the lower the level), and the professional testing methods may not be available in some units. An easy way can be used:
Take one of the different levels of glove samples, slice them into 1-2cm square pieces, put them into a clean beaker, add an equal amount of pure water (you can use tap water without any conditions), about 100ml, stir well with glass rod, there is The condition can be oscillated for 1-2h. Visually, if there are more impurities in the pure water, the level is low, and the relatively small amount of impurities means higher level.
This method can be distinguished from class1000, but class100 and class10 cannot be distinguished. Professional methods are required.