What are the standards for qualified stainless steel thermos cups?

What are the standards for qualified stainless steel thermos cups?

First of all, before the stainless steel thermos cup leaves the factory, it must be confirmed that the material is qualified. The most critical test to test whether the material is qualified is the salt spray test. Can the salt spray test be used to determine whether the material meets the standards? Will it rust after long-term use?

Having been in the water cup industry for so long, it can be said that no matter how good the workmanship of the water cup is or how long the thermal insulation performance is, as long as the material is inappropriate or different from the material indicated on the manual, it means that the water cup is a substandard product. For example: use 201 stainless steel to pretend to be 304 stainless steel, put a 316 stainless steel symbol on the bottom of the water cup, pretend that the inner tank is made of 316 stainless steel, but in fact only the bottom is made of 316 stainless steel, etc.

Secondly, the sealing of the water cup. In addition to professional testing tools for sealing, the factory will use a sampling inspection method. When the water cup is filled with water, cover it tightly and turn it upside down for half an hour, and then pick it up to check for leaks. Then turn the water cup upside down and shake it vigorously up and down 200 times, and check again whether there is any leakage in the water cup.

We have seen that many brands of water cups on a well-known e-commerce platform have negative comments from consumers in the sales comment area about water cups leaking. Such water cups must be substandard products, no matter how high-quality the material is, or how cost-effective it is. .

Then, regarding the thermal insulation performance, the editor has mentioned in other articles about the international standard of stainless steel thermos cups. Let’s briefly talk about it today. Pour 96°C hot water into the cup, seal the cup lid, and open the measuring cup after 6-8 hours. If the internal water temperature is no less than 55°C, it is considered a qualified thermos cup, so interested friends may wish to test it with their own thermos cup.

If the water cup sold has a clear indication of the heat preservation time on either the instruction manual or the packaging box, for example, some water cups will say that the heat preservation time is up to 12 hours, then during use, if you find that the advertised time has not been reached, you can also consider this water cup It is a substandard product

There is another item that is also very important for whether the stainless steel thermos cup is qualified. Friends, do you want to know? If so, please leave a message and we will announce the answer as soon as possible.