According to SOLAS II-2/14.2.2.3, portable fire extinguishers are to be maintained properly, including the spare charges. Whenever a defective condition such as the above is found, it will likely be pointed out as a deficiency. Further, there is a possibility that the deficiency might be judged as grounds for detention indicating a lack of proper SMS implementation.

Although there is no clear requirement concerning the validity date of powder in the FSS Code, it is generally considered necessary to refill the powder every 5 or 6 years, in principle. It is highly recommended that spare charges should also be replaced at the same time taking into account age deterioration, even though the expiration date of the charges is not specified by the manufacturer.