Malay units of measurement Malay units of measurement Units of measurement used in Malaysia and neighbouring countries include the "kati", a unit of mass, and the "gantang", a unit of volume. In measuring amount by mass, the common unit is "kati", which is about 1 lb (604.79 g). A higher unit is "pikul" or "picul", which is 100 "kati" or . In measuring amount by volume, the common unit is "gantang" (gallon), which is equivalent to or 8 pints. To make it clear, Gantang equals a Gallon. A Gallon has sub measurements of 4 Quarts, or 8 Pints, or 16 Cups. A Gantang has
Grains per gallon Grains per gallon The grain per gallon (gpg) is a unit of water hardness defined as 1 grain (64.8 milligrams) of calcium carbonate dissolved in 1 US gallon of water (3.785412 L). It translates into 1 part in about 58,000 parts of water or 17.1 parts per million (ppm). Also called Clark degree (in terms of an imperial gallon). Calcium and magnesium ions present as sulfates, chlorides, carbonates and bicarbonates cause water to be hard. Water chemists measure water impurities in parts per million (ppm). For understandability, hardness ordinarily is expressed in grains of hardness per gallon of water (gpg).