difference between “Life Test" "Life Guarantee” “Life Testing Period” of catalyst

[BZLAM21]

Hi Gents

could you please explain what is the difference between

“Life Test" "Life Guarantee” “Life Testing Period” of catalyst

best regards

 

[1503-44]

Simple English would interpret those terms as follows,

Life test, a test to determine the expected life of something.
Life testing period, the amount of time somrthing was life tested, as in the duration of a test.
Life guarantee, the period of "life time" that the vendor will guarantee the product fit for service.

 

[BZLAM21]

hi 1503-44
thanks a lot