MG-V preserving fresh & heat water bottles----the effect test of preserving heat or cold
A.The effect of keeping heat
1.At 22 —28 centigrade environmental temperature, when water temperature decreases from 80 to 35 centigrade ,the average time of preserving heat is about 7 hours.
2.At –2---1 centigrade environmental temperature, when water temperature decreases from 94 to 22 centigrade, the average time of preserving heat is about 4 hours.
B.The effect of keeping cold
1.At 21-25 centigrade environmental temperature, when water temperature rises from 4 to 16.5 centigrade,the average time of preserving cold is 6 hours.
2.At 22-28 centigrade environmental temperature, when the ice cubes which is full of the water bottle dissolve into 2℃ water , the average time is about 6 hours.
Note
1.Because the test’s process lasted several hours, the environmental temperature occurs change within certain range.
2.The normal person’s oral temperature is 36.3~37.2 centigrade。
3.In view of the products’ feature—finite preserving heat, disapprove of being used to preserving heat’s purpose when you go on long-time outdoor activities at a low temperature.