"product quantity" is correct and usable in written English.
You can use it to refer to the amount of a certain product that is available. For example, "We have a limited product quantity, so make sure to order yours before it runs out!".
Analysis of the yields (Fig. 7b) revealed a gradual decline in the product quantity.
Figure 4 Relative degree of retention (top) and catch rate (bottom) per product quantity type.
The indicators are comparable to the ones of product quantity seen in Figure 4, only marginally higher.
The products characteristics are the product price (top left), the product quantity (top right) and the product complexity (bottom).
A 1.9 density-cut was simulated on this ROM material and the product quantity and quality were estimated (Table 1).
Each household is equipped with a small handheld terminal through which details of all purchases are entered - product, quantity, price and outlet.
This enabled the researchers to know, for example, the precise arrival and departure time of vehicles as well as vehicle type and product quantities delivered.
In the bitensor approach, the product quantities belong to different points of one manifold, but in the axiomatic approach these two points belong to different manifolds.
The profit-maximizing firms select both the capacities associated with the various supply chain network activities as well as the product quantities.
In other words, if c 1 is a customer purchasing more in terms of product quantities than c 2, then it is very likely that c 1 buys the same set of products c 2 buys, plus something more.
Consequently, the PCR product quantities are often too low for direct sequencing or cloning, thus requiring fragment re-amplification by nested-PCRs with new sets of primers.
