Does the Centers for Disease Control and Prevention (CDC) recommend a specific type of chemical indicator?

No. The two categories of chemical indicators are single-parameter and multiparameter. A single-parameter chemical indicator provides information about only one sterilization parameter (e.g., time or temperature). Multiparameter chemical indicators are designed to react to two or more parameters (e.g., time and temperature or time, temperature, and the presence of steam) and can provide a more reliable indication that sterilization conditions have been met. Chemical indicators (no matter what class or type) do not verify sterility and do not replace the need for weekly spore testing.

Content source:

Centers for Disease Control and Prevention

Please Check out file at the following link

Steam Chemical Indicator class 6 (RRS 14-110)

Coronavirus Disease 2019

Pfizer’s Covid Vaccine