Any accounting gurus about?

Does anyone out there know the term given for the period in which a fixed asset still has a positive residual value i.e. the time in which such capital could still be sold on.

It depends, it’s either remaining useful life or remaining economic life.

Yup, depends on what you want to say. Either something like:
“The factory equipment has 10 years remaining economic life” or
“The equipment will be depreciated over a period of 10 years”

Reply from your PM

There are in accordance to IAS (international accounting standards).
I know UK, South Africa, Australia and NZ are switching from
their domestic standard to the international one. I have no idea
if Taiwan is switching over.