DIN 41612 is a DIN standard for electrical connectors that are widely used in rack based electrical systems.
Its original usage was in the collection of bulk waste resulting in the creation of the DIN standards to be initiated by city cleaning companies.
The DIN standard is 72581/1.
The Steno-Cassette 30, developed by Grundig in 1983, became the DIN standard.
The original DIN standards for these connectors are no longer in print and have been replaced with the equivalent international standard IEC 60130-9.
Early efforts to produce a better weighting curve led to a DIN standard that was adopted for European Hi-Fi equipment measurement for a while.
DIN sync itself is not a DIN standard.
DIN 4420 refers to a series of DIN standards dedicated to working and protection scaffolds.
DIN 72552 is a DIN standard for automobile electric terminal numbers, standardizing almost every contact in an automobile with a number code.
Other noise-weighting curves have existed, e.g. DIN standards.