How to Convert the Grade of Each Insulation Plastics between NEMA, IEC, DIN, GB, and JIS

  There are lots of standards around the world and sometime too much different standards may confuse people from different countries to choose which materials they need.

  To know how to convert the standard from different countries, we need to know the definition of them first.

1. NEMA

  The National Electrical Manufacturers Association (NEMA) was established in the fall of 1926 as a result of the merger of the American Electric Power Club and the American Electrical Supplier Manufacturers Association. One of the main activities of NEMA is to provide a forum for the standardization of electrical equipment to ensure the safety, effectiveness and compatibility of electrical equipment.

  NEMA has made great contributions to the electrical industry by participating in the formulation of public policies and as a central agency for collecting, collating, and analyzing market statistics/economic data.

  The general headquarter of NEMA is in Rosslyn, Virginia, USA which currently has approximately 400 members, including large, medium and small manufacturers of power generation equipment, transmission and distribution equipment, power control equipment and electrical terminal products. The total annual sales of products produced by NEMA members are approximately US$100 billion.

2. IEC

  The International Electro Technical Commission (IEC) was established in 1906. It is the world's earliest non-governmental international electro technical standardization organization and a Class A consulting organization of the United Nations Economic and Social Council (ECOSOC).

3. DIN

  German Institute for Standardization. German name: Deutsches Institut für Normung e.V. German abbreviation: DIN. Germany's largest non-governmental organization for public welfare standardization with extensive representation. Founded in 1917. The headquarter is in the capital Berlin. Through the joint collaboration of relevant parties, for the benefit of the public, the formulation and publication of German standards and other standardization work results and promotion of their application will contribute to the rationalization, quality assurance, safety and security of economics, technology, science, management and public affairs.

4. GB

  The National Standard of the People’s Republic of China, referred to as the National Standard, is a national standard code that includes a language coding system. It is represented by the member institutions of the People’s Republic of China in the International Organization for Standardization (ISO) and the International Electro technical Commission (or International Electro technical Association, IEC): National Standardization Issued by the Management Committee. Standards issued in 1994 and before use two digits to represent the year. The standards released in 1995, the year after the standard number, changed to 4 digits to represent. Mandatory standards are prefixed with "GB". The recommended standard is prefixed with "GB/T".

5. JIS

  Japanese Industrial Standards (JIS, Japanese Industrial Standards) are the most important and authoritative standards among Japanese national standards. Developed by the Japanese Industrial Standards Investigation Committee (JISC).

  Corresponding codes in JIS: A-Civil Engineering and Construction; B-General Machinery; C Electrical and Electronic; D-Automobile; E-Railway; F-Ship; G-Steel; H-Non-ferrous Metal; K-Chemical; L- Fiber; M-mine; P-pulp, paper; Q-management system; R-furnace industry; S-daily necessities; T-medical safety equipment; W-aviation; X-information processing; Z-others.

The chart below can show you how to convert each plastics to each other include FR4 sheet, 3240 Epoxy Resin Sheet, 3026 Phenolic Cotton Cloth Laminated Sheet, phenolic paper board and so on.