GB/T 32065.3-2015Environmental test methods for oceanographic instruments - Part 3: Cold storage (English PDF)

3.1 General requirements

Marine Instrument temperature storage 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

test, the test sample should be as close to the central chamber (chamber), which corresponds to any surface with the chamber (chamber) intramural

The minimum distance should be greater than 15cm, and the chamber (chamber) in the wind speed should not exceed 1.7m/s.

3.2.3

Test sample chamber (chamber) should be free from any direct radiation heating and cooling elements.

3.3 Test temperature

Unless otherwise specified, marine instrumentation low temperature storage test following values should be selected.

a) (-40 ± 3) °C;

b) (-55 ± 3) °C;

c) (-65 ± 3) °C.

3.4 Duration

Unless otherwise specified, marine instrumentation temperature storage test duration should be selected in the following values.

a) 8h, for general marine equipment;

b) 24h, the limit applies to marine equipment containing glass and the like.

Note. "Limit glass and other" refers to the need to install or limited to a specific location of glass, ceramic and glass products, commonly found in optical systems and electronic systems.