Please kindly read the example:
The Company shall not submit tender for new business having a value of less than some specific amount.
However, when the noun 'value' is used to mean how much something is worth in money for which it can be exchanged, it has both countable and uncountable meaning. I always use 'a value of' without understanding the reason for that.
Would you please be so kind explain me the rationale of 'a' in this example? For example, why cannot zero article be used instead?
I would be grateful if you could explain me the general rule and the exception from that rule, if any, applicable to such an example. Would you please also state any other similar examples that follow such rules.