Is there really that big of a difference between the classifications of chemicals? How do the different chemical grades affect the processes?
Household cleaners are the least potent, and often don't do a good job.
These products, many times, are just a stronger concentrate that has been watered down and individually packaged for sale to unknowing customers. This leads to a less clean, and more expensive result. While these products still have to adhere to government standards, residential strength products do not have to adhere to TGA guidelines.
Commercial cleaners are adequate in many residential applications, despite the vocabulary.
These are products scrutinized under TGA regulations, these are often multiples stronger than their residential counterparts. Additionally, these chemicals may be specifically formulated to deal with a specific type of grime like an oil spill, or remnants from welding. Residential products will rarely even contain the proper chemicals to break down these tough stains and spots. While these products are stronger, they do not typically warrant the same standard of caution needed for industrial grade cleaners.
Industrial cleaners have a firm place in home cleaning, not just factories and large businesses.
Many industrial cleaners have a pH level that is much higher, or lower, than what is permitted for residential cleaners. This allows them to break down and dissolve dirt and grime that other products simply cannot. Associated with these intensely concentrated chemicals, are their harmful effects. Some chemicals produce gaseous byproducts that are very toxic, carcinogenic, and should only be used in a very open, or well-ventilated space. Other chemicals are so powerful that they need to be wiped off after 2 minutes or they will begin to erode tile and stone slowly. Without proper safety equipment, industrial chemicals are dangerous. Despite the risks however, the industrial tier produces unmatched results when applied correctly.