The thermos cup is an essential item in our lives. The principle of insulation of the thermos cup is to minimize the loss of heat to achieve the best heat preservation effect. The thermos cup is easy to use and has a long heat preservation time. It is generally a water container made of ceramic or stainless steel with a vacuum layer. It is tightly sealed. The vacuum insulation layer can delay the heat dissipation time of water and other liquids contained inside to achieve the purpose of heat preservation. Let’s learn about the knowledge of thermos cup detection with microgram.
Items included in the thermos cup test report:
304 thermos cup, children’s thermos cup, stainless steel thermos cup, plastic thermos cup, purple sand thermos cup, ceramic thermos cup, 316 thermos cup, etc.
Vacuum rate, corrosion resistance, material testing, capacity deviation, migration detection, insulation effect testing, physical performance testing, impact performance, coating adhesion, appearance quality, sealing performance, usability, marking, sensory, decolorization test, high Potassium manganate consumption, installation strength, color fastness, heavy metals, capacity, odor, hot water resistance of rubber parts, etc.
Thermos cup detection method: 1. Stainless steel material: It is a green and environmentally friendly product that meets the national food grade standards. The product is rust-proof and corrosion-resistant. Ordinary stainless steel cups appear white or dark in color. If soaked in salt water with a concentration of 1% for a day, rust spots will appear, indicating that some elements contained exceed the standard and will harm human health. 2. Plastic material: Generally, the lid of a thermos cup is made of plastic material. A standard thermos cup will be made of food-grade plastic. It has a bright surface, low odor, no burrs, and is not easy to age after long use. Otherwise, it is a defective product. 3. Capacity: The depth of the inner tank and the height of the outer shell should be basically the same. Generally, the difference of 16-18mm is within the normal range. Thermos cup testing standards: GB/T 29606-2013 National standard for stainless steel vacuum cups 35GB/T 29606-2013 Stainless steel vacuum cups QB/T 3561-1999 Glass cup testing methods 56QB/T 4049-2010 Plastic drinking cup 60QB/T 5035- 2017 Double-layer glass cup GB4806.1-2016 National Food Safety Standard General Safety Requirements for Food Contact Materials and Products
Author: Microspectrum third-party testing agency
Link: https://www.zhihu.com/question/460165825/answer/2258851922
Source: Zhihu
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Post time: Oct-19-2023