the refinement is divided into 19 items: civil construction, general machinery, electronic instruments and electrical machinery, automobiles, railways, ships, steel, non-ferrous metals, chemicals, fibers, mines, pulp and paper, management systems, ceramics, daily necessities, medical safety appliances, aviation, information technology and others. As of February 7, 27, * * * has 1,124 current JIS standards.
Japanese transliterates JIS as ジス, which was formulated and reviewed by JISC, and is one of the most important and authoritative national standards in Japan.
according to the Japanese industrial standardization law, JIS standard objects not only have special standards or technical specifications for drugs, pesticides, chemical fertilizers, silk, food and other agricultural and forestry products, but also involve various industrial fields.
its contents include: product standards (product shape, size, quality, performance, etc.), method standards (test, analysis, detection and measurement methods and operation standards, etc.) and basic standards (terms, symbols, units, priority numbers, etc.).