Ash’ari et al. (2012) divides the system unit of measure commonly used in the world into two groups of units of measurement systems, namely:
(a) Systems UK (British Imperial System).
- For the length expressed in units yard. The standard length of 1 yard based on the rule of Brins (Bronzebar) with a temperature of 600 Fahrenheit. Ruler is stored in Standard Office (London). For the size of the foot (feet) is set equal to 1/3 yard and equal to 12 inches. For the length expressed in units yard. The unit of measure yard English by American equated with (3600 / 3937.0113) meter.
- To measure the weight (mass) expressed in units of pounds. Standard pound mass of otherwise equal with platinum iridium cylinder and stored in Standard Office (London). One pound in America equated with (1 / 2.20462234) kilogram.
- For the measurement of time is expressed in seconds (second). The standard time of 1 second is set (1 / 31,556,925.9747) from the time the earth around the standard marahari in 1900. Based on this calculation, the year likened to 31,556,925.9747 seconds. When were the present period of the Earth around the sun during the first year was 365.25 days, then the meaning 365.25 x 24 x 60 x 60 sec equal to 31.5576 million seconds.
(b) System Metric (Metric System).
This system was originally developed by the French state and adopted by most European countries. Indonesia’s state adopts a result of Dutch colonialism. This unit basis, are:
- For the length expressed in meters. One meter long equated with a standard ruler of irinium known as the International phototype Meter stored at the International Bereau of Weight and Measures in Serves (France).
- A measure of weight expressed in kilograms and set equal with platinum iridium piece weight stored in Serves (France).
- For the measurement of time is expressed in seconds (second).
The difference of the two systems are presented in Table 1.
Table 1. Differences between the measurement system.
