An intangible asset is an identifiable non-monetary asset without physical substance.
An asset is identifiable if it either:
(a) is separable, ie is capable of being separated or divided from the entity and sold, transferred, licensed, rented or exchanged, either individually or together with a related contract, identifiable asset or liability, regardless of whether the entity intends to do so; or
(b) arises from contractual or other legal rights, regardless of whether those rights are transferable or separable from the entity or from other rights and obligations.
I don't think ISO Certification cost could get into this definition.