In our industry, there are many international standards with extremely specific applications. They are designed to outline the procedures for a specific test on a certain type of material and discuss the problems in detail.
Then there are others, instead, which lay the general foundations for conditioning tests and climatic tests.
This is the case with the German standard DIN 50014. Let's find out together.
What is DIN 50011 and Why is it Important?
DIN is an acronym that stands for Deutsches Institut für Normung, or German Institute for Standardization, and was founded in 1917.
At the time, each country had its own standardization institutes without a supranational regulation that approved the standards.
The ISO, the International Organization for Standardization, was in fact founded only in 1947. From then on, the various national standardization bodies adhered to it, integrating part of their standards into collectively shared international standards.
DIN joined ISO in 1951, and many originally German standards have had their international equivalent since then.
What does DIN 50014 / ISO 554 prescribe?
DIN 50014 (or ISO 554 if you prefer) outlines three standard atmospheres as generic set-ups for air conditioning and climatic tests.
These are very general conditions that are suitable for a good number of tests, especially the conditioning ones (which we have dealt with in detail here) since they serve to bring a series of samples to an equivalent temperature and are independent of the type of material.
The three standard atmospheres are instead distinct in this way.
The 23/50 is known as the “Recommended Atmosphere” and is the most used of the bunch. It prescribes a temperature of 23 ° and relative humidity of 50%.
The 27/65, on the other hand, is suitable for tropical countries and has higher values
Finally, there is the 20/65 which is intended for certain specific fields of application that will refer to it in their standard referring to the third standard of ISO 554.
All standards provide for a normal atmospheric pressure between 86 and 106 kPa.
The standard also outlines two tolerance thresholds for tests.
The Ordinary (or wide) Tolerance which has a margin of ± 2 ° of temperature and ± 5 percentage points of humidity; and the Reduced (or narrow) Tolerance which has a margin of only 1 ° of temperature and ± 2 percentage points of humidity.
Depending on the experiment, reference can be made to one or the other tolerance threshold.
The FDM Climatic Chamber for DIN50014 / ISO 554
The FDM climatic chamber is able to easily reproduce all three standard atmospheres outlined by DIN 50014 or ISO 554. Moreover, thanks to advanced technologies, such as the two electronic controllers called stillFACE and revoFACE, it has very low margins of error to conduct precise tests, in accordance with both tolerance thresholds indicated by the standard.
For further doubts and questions, please do not hesitate to contact us.