What are the identification standards for qualified thermos cups?

What are the standards for qualified stainless steel thermos cups?

1. Use materials

Before a stainless steel thermos cup is officially shipped from the factory, it must be confirmed that the materials used in the cup are qualified. The most important test to test whether a product is qualified is the salt spray test. Can the salt spray test be used to determine whether the material is qualified? Will it rust with continued 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 heat and cold insulation performance is, as long as the material is inappropriate or different from the material marked on the manual, it means that the water cup is an unqualified product. For example: a 201 stainless steel plate can be easily passed off as 304 stainless steel. Use the 316 stainless steel symbol to mark the bottom of the water cup, pretending that the inner tank is made of 316 stainless steel, but in fact it is just that the bottom is made of 316 stainless steel.

2. Pay attention to the sealing of the water cup.

In addition to professional testing tools for sealing during the production process, some unqualified factories will also adopt strict sampling inspection methods. When the water cup is filled with water, cover it with a lid. After half an hour, pick it up and check for leaks. Then pour the water into the glass and shake it violently up and down 200 times before checking whether there is any leakage in the water glass.

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

3. Better thermal insulation performance.

The editor has already mentioned the international standards for stainless steel thermos cups in other articles, and I will briefly talk about them again today. Pour 96°C hot water into the water cup, seal the cup lid, and after 6-8 hours, open and measure the water temperature in the cup. If it is not lower than 55°C, it is a qualified insulated container such as a thermos cup, so friends who are interested in this aspect may wish to get one Come and test it yourself with your own thermos cup.

If there is a regularly sold water cup, whether it has a book explaining the heat preservation or the packaging box has a clear mark on the heat preservation time of the water cup. For example, some water bottles are written to have a heat preservation time of up to 12 hours. If you find that the heat preservation time is not up to the advertised time during use, you will also think that this water bottle is an unqualified product.

There is another project that is also very related to the question of whether the stainless steel thermos cup is qualified. Is there anything you would like to know? If you don’t know anything, please leave a message and we will be very active in publishing your answers as soon as possible.