Constant damp heat test equipment and long mildew test equipment: all measurement data of constant damp heat test equipment, alternating damp heat test method, and long mildew test equipment are corrected according to the correction value of the measuring instrument. Check the relative humidity value according to GB 6999.
The temperature fluctuation of the constant temperature and humidity chamber is calculated as follows:
The wind speed of the constant temperature and humidity chamber is calculated as follows:
V = （VA + VB + …… + VM） / n …………………… (7)
In the formula: V—wind speed, m / s;
(VA, VB…, VM) —wind speed at each measuring point, m / s;
n—the number of measuring points.
Calculate the heating rate according to the following formula (not applicable to alternating damp heat test equipment)
VT = △ T ∕ 5 …………………… (8)
In the formula: VT—heating rate, C / min;
△ T—The amount of temperature change every 5min, ℃.
The above verification results shall meet the relevant requirements of GB / T 2423.3, GB 2423.9 and GB 2423.16 on temperature, relative humidity and wind speed.
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