FIFO Example. You use the first in first out method where you assume the first item you buy is the first item you sell - i.e. items are in a queue You buy the first item for 100 and the second item for 200 - you then sell 1 item for 400. At balance date you would have: Sales of 400 Cost of Sales of 100 Profit of 300 Inventory of 200.
At nanometer size. Any device only a few nanometers in size is nanoscale. Nanotechnology is said to comprise elements less than 100 nanometers in size (100 nm). See nanotechnology and nanometer.
Size of nanoparticles In terms of diameter, fine particles cover a range between 100 and 2500 nanometers, while ultrafine particles are sized between 1 and 100 nanometers. Nanoparticles may or may not exhibit size-related properties that are seen in fine particles. Despite being the size of the ultrafine particles individual molecules are usually not referred to as nanoparticles. Nanoclusters have at least one dimension between 1 and 10 nanometers and a narrow size distribution.