1. Altitude simulation test (low-pressure box dedicated for the ring instrument battery)
Under the condition of pressure ≤11.6KPA, temperature 20 ± 5 ℃.
2. Thermal test (Huanyi rapid high and low temperature alternating test chamber)
Conduct high and low temperature impact tests under the conditions of 75 ± 2 ℃ and -40 ± 2 ℃, and store the time in the limit temperature ≥ 6H,
High and low temperature conversion time ≤30min, impact 10 times, stored in room temperature (20 ± 5 ℃) 24H, the total test time is at least one week.
3. Vibration test (Huanyi sweep frequency vibration test bench)
Complete a reciprocating logarithmic sweep frequency sine vibration from 7HZ to 200HZ within 15min, and complete 12 vibrations in 3D directions within 3H;
4. Vertical impact test stand (meets UN38.3 test standard)
150g, 6ms or 50G, 11ms half sine shock, 3 times for each installation direction, a total of 18 times;
5. External short circuit test
Short circuit under the condition of 55 ± 2 ℃ and external resistance <0.1, the short-circuit time lasts until the battery temperature returns to 55 ± 2 ℃ 1H.
6. Collision test (ring instrument collision test stand)
The 9.1KG heavy object fell from a height of 61 ± 2.5cm on the battery with a 15.8mm round bar, and the surface temperature of the battery was detected.
7. Overcharge test
Under the condition of 2 times the maximum continuous charging current and 2 times the maximum charging voltage, overcharge the battery for 24H
8. Forced discharge test
The battery is connected in series with a 12V DC power supply to perform forced discharge with the maximum discharge current.
The blush brush is a flat brush slightly smaller than the honey powder brush. The tops of the bristles are arranged in a semicircle.
A good blush brush can make rouge easy and natural. Dip the brush into blush powder, gently shake off the excess powder, and then apply makeup. If the color is not enough, slowly add it. Can also be used as a powder brush or after-painting
Blush Brushes
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