GB/T 32065.6-2015Environmental test methods for oceanographic instruments - Part 6: Damp heat, steady state (English PDF)

3.1 General requirements

Marine Instrument constant heat standard atmospheric conditions for testing, the test sample installation, test temperature stability test should interrupt handling respectively

According to GB/T 32065.1-2015 and provisions in Chapter 7 of 4.2,6.1,6.2 be.

3.2 Test Equipment

3.2.1

Test equipment shall comply with GB/T 32065.1-2015 in Chapter 5.

3.2.2

chamber (chamber) of working space at any point in the air should flow, the temperature of the actual work space and relative humidity should be uniform,

But wind speed should be less than 1m/s.

3.2.3

Test Equipment radiant heat of the heating element should not be directly applied to the test sample.

3.2.4

directly used to generate water moisture resistivity of not less than 500ohm · m.

3.2.5

Condensate chamber (chamber) of the inner wall and the top should not drip onto the test sample.

3.3 Test temperature and relative humidity

Unless otherwise specified, marine instrumentation Damp heat test should be carried out under the following conditions.

Temperature. (40 ± 2) °C, relative humidity. (93 ± 3)%.

3.4 Test time

A test cycle 1d. Unless otherwise specified, the test cycle can be selected from the following values. 2d, 4d, 6d, 10d.

4.1 Pretreatment

Removal of the test sample surface dirt and oil, so as to achieve a stable temperature under standard atmospheric conditions or by the relevant specifications (for example. standard products […]