What is the DIN standard? What is the standard for DIN

DIN is Germany's standardization authority and participates in international and regional non-national standardization bodies as a national standardization body. DIN is a registered private association with approximately 6,000 industrial companies and organizations as its members. There are currently 123 standards committees and 3,655 working committees.

DIN joined the International Organization for Standardization in 1951. The German Electrotechnical Commission (DKE), a joint venture between DIN and the Association of German Electrical Engineers (VDE), represents Germany at the International Electrotechnical Commission. DIN is also an active participant of the European Committee for Standardization, the European Committee for Electrotechnical Standardization (CENELEC) and the International Federation of Standards and Practice (IFAN).

The German Institute for Standardization (DIN) is Germany's largest non-profit standardization organization. Founded in 1917. The headquarters is located in the capital Berlin.

On May 18, 1917, the Association of German Engineers (VDI) met at the Royal Manufacturing Bureau in Berlin and decided to establish the General Mechanical Engineering Standards Committee, whose task was to develop VDI rules. In July of the same year, the Standards Committee recommended that the standards developed by the industrial associations be merged with the standards of the Association of German Engineers, commonly known as the German Industrial Standards (DIN). On December 22, 1917, the General Mechanical Engineering Standards Committee was reorganized into the German Industrial Standards Committee (NDI).

On November 6, 1926, the Committee was renamed the German Standards Committee (DNA) in view of the fact that its standardization activities had long since gone beyond industry. During the Second World War (1936-1945), the Commission ceased its activities. In October 1946, with the approval of the Control Committee of the Four Nations, the German Standards Committee worked throughout Germany as a body composed of representatives of both the GDR and the Federal Republic of Germany.

With the establishment of the GDR Standardization Agency in 1954, the German Standards Committee became the standardization body of the Federal Republic of Germany, but it remained in the GDR until 1961. In 1968, the GDR announced its withdrawal from the DIN. Since then, DIN has been confined to the Federal Republic of Germany and West Berlin.

On May 21, 1975, the German Standards Committee changed to its current name. On 5 June of the same year, DIN signed an agreement with the Federal Commonwealth, which recognized DIN as the standardization authority of the Federal Republic of Germany and West Berlin and represented Germany in non-governmental international and regional standardization bodies.

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German: Deutsche Industrie Normen

German Industrial Standards.

German standards. However, many have now been replaced by the EN Common Standard.

DIN is a German standard, and the German Institute for Standardization (DIN) is Germany's largest non-governmental organization for standardization with wide representation. Founded in 1917. The headquarters is located in the capital Berlin.

ISO is the English abbreviation for the International Organization for Standardization. Its full name is International Organization for Standardization or International Standard Organized. The International Organization for Standardization (ISO) is a worldwide federation of national standardization bodies (ISO member groups).

The development of international standards is usually done by the technical committees of the ISO. ISO maintains a close relationship with the International Electrotechnical Commission (IEC) on the standardization of electrotechnical technologies. Founded on February 23, 1947.

ISO is responsible for standardization activities in many important areas except for the electrical, electronics and military, petroleum and shipbuilding sectors. ISO currently has 163 members, including 110 group members, 43 corresponding members and 10 subscriber members. China is a full member of ISO, and the organization representing China is the Standardization Administration of China (SAC).

DIN: Natural Science Oceanography Ocean Dissolved Inorganic Nitrogen.

Nitrogen fixation converts N2 into bioavailable nitrogen into the biological cycle, which is the main bioavailable new nitrogen. Denitrification leads to the loss of biologically active DIN (ocean dissolved inorganic nitrogen), and DIN in the ocean is closely related to many marine ecological processes. Biological nitrogen fixation compensates (or partially compensates) for nitrogen losses due to denitrification in the marine nitrogen cycle.

At the same time, biological nitrogen fixation is also a component of the new marine productivity, which is closely related to the efficiency of marine biological pumps and the function of the ocean in absorbing atmospheric CO2, which is related to the global CO2 cycle and climate change.

Dimensioning of the pipe diameter on the mechanical drawing.