Most of the time, though, LDAP is used to search for information in the directory. The LDAP search operation allows some portion of the directory to be searched for entries that match some criteria specified by a search filter.
It has good low temperature flexibility and is superior to most elastomers in compression set, cold flow and abrasion resistance. However, it does not possess good resistance to ozone, sunlight or weather. Buna-N has a temperature range of -40 to+135 C (-40 to 275 F).
For example, Viton over, Buna, is essential for high-temperature applications, which provides an indefinite seal up to 400Â°F and about a 2-day seal for temperatures up to 600Â°F. Meanwhile, Buna is only effective in the same manner up to 250Â°F and is the better option for low-temperature seals as low as -30Â°F.