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4.
4.
Take 6 test samples for each design model
4.
Fill the sample can with no less than 95% of its contents
4.
Meet the requirements of test equipment in GB/T4857.
4.
Carry out the drop test with a drop height of 1.
a) The first drop (using 3 samples): The diagonal of the sample is perpendicular to the impact surface, and the center of gravity of the sample passes through the impact point and hits the impact plate with the edge of the bottom of the barrel
b) The second drop (use another 3 samples): The container should hit the impact plate with the weakest part that has not been tested in the first drop, such as the longitudinal weld of the barrel
4.
After the sample is dropped, the contents are not spilled
4.
4.
Take 3 test samples for each design model
4.
5.
3.
2 Preparation of test samples
Fill the sample can with no less than 95% of its contents
.
The contents can be replaced by substances with the same physical properties (such as quality and particle size) as calcium carbide
.
4.
5.
3.
3 Test equipment
Meet the requirements of GB/T4857.
3
.
4.
5.
3.
4 Test method and stacking load
A load is applied to the top surface of the test sample, the mass of which is equivalent to the total mass of the same number of packages that may be stacked on it during transportation
.
The minimum stacking height including test samples shall be 3m
.
The stacking time is 24h
.
The stacking load is calculated as follows:
Where:
P—loaded load, the unit is kilogram (kg);
H—stacking height (not less than 3m), the unit is meter (m);
h—The height of a single package, in meters (m);
M—The gross mass of a single package, in kilograms (kg)
.
4.
5.
3.
5 Criteria for passing the test
The sample shall not be broken or collapsed, and shall not be allowed to be damaged that may affect the safety of transportation, or may reduce its strength or cause unstable stacking of packages
.