According to DIN standard, which of the following relation is correct about gauge length of cross-section area ‘A’?
DIN, Deutsches Institut für Normung e.V. (German Institute for Standardization) develops norms and standards for rationalization, quality assurance, environmental protection, safety, and communication in the industry, technology, science, and government, as well as the public domain.
DIN 2353 tube fittings are most commonly used in industrial, oil & gas, and construction equipment in hydraulic and pneumatic applications.
According to DIN standard, gauge length=11.2√A
A = cross-section area of specimen used under testing