Final answer:
Refrigeration is the limited invasive procedure used for preparing the deceased for viewing without embalming, which simply slows down decomposition without invasive chemical application.
Step-by-step explanation:
When preparing the deceased for viewing without embalming, refrigeration is considered a limited invasive procedure. Techniques such as arterial embalming and cavity embalming are more invasive processes used to preserve the body and are not considered limited. Surface embalming can be less invasive, but it involves the direct application of preservative chemicals to body tissues and is different from simple refrigeration which just slows down the decomposition process without invasive chemical application.