MeterToMeterTo mainly offers instruments and tools. Please confirm the product is offered by our store MeterTo when purchasing, otherwise we can't ensure the quality and after-sale service.The proportion is defined as the ratio of the density of a substance to the density of water at the same temperature.The product is made of stainless steel or anodized aluminum precision instruments for measuring the proportion of paint or similar products.The instrument includes a cylindrical container with a small hole for discharging excess test fluid.Each cup has a overflow on the lid so that excess liquid overflows. All excess liquid should be removed before weighing.Standards:ISO 2811