For years, Atami BV measured its liquid product data in weight per volume (W/V). Soon this will switch to the more universal weight-per-weight (W/W) measurement, so products are added to water by weight instead of volume. In other words, products are measured in milligrams instead of milliliters. The difference in values is therefore caused by the weight of the liquid product. Each liquid product has its own specific density, which means that not every liter weighs 1 kg. What has changed for the consumer? Nothing! Atami products will have the same compositions, and the dosage will also be the same. The only thing that will change are the values on the label—the N-P-K values on the label will be lower.