{"id":6357,"date":"2025-02-18T17:56:50","date_gmt":"2025-02-18T09:56:50","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=6357"},"modified":"2025-02-18T17:56:58","modified_gmt":"2025-02-18T09:56:58","slug":"qi-mi-xing-ip-deng-ji-atm","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/qi-mi-xing-ip-deng-ji-atm.html\/","title":{"rendered":"Airtightness, IP rating, ATM waterproofing...one article to understand the product sealing thing!"},"content":{"rendered":"
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Have you ever wondered how your everyday kettle manages to stay watertight? How can a high-tech smartphone have excellent waterproof performance? All of these are inseparable from the strict control of product sealing.<\/p>\n<\/blockquote>\n\n\n\n

\"Air
The Importance of Airtightness Testing
<\/em><\/figcaption><\/figure>\n\n\n\n

Airtightness testing is a key means of ensuring a product's sealing performance, while IP protection and ATM waterproofing ratings are important measures of sealing performance.<\/strong> In this article, we will analyze the difference and connection between these three concepts and introduce the professional leakage testing solutions provided by Precision Engineering.<\/p>\n\n\n\n

1. Airtightness: an intrinsic indicator of sealing performance<\/h2>\n\n\n\n

1.1 What is airtightness?<\/h3>\n\n\n\n

Gas tightness is the ability of a product to stop gas leakage. Unlike standards such as IP ratings, theAirtightness itself is not clearly graded, but is a continuous quantity<\/strong>The leakage rate is usually quantified by measuring the leakage rate (e.g., mL\/min) or the pressure drop (e.g., Pa).The smaller the leakage rate or pressure drop value, the better the product's airtightness.<\/strong> Airtightness is the basis for products to achieve waterproof and dustproof performance.<\/p>\n\n\n\n

\"\u6c14\u5bc6\u6027\u3001IP\u7b49\u7ea7\u3001ATM\u9632\u6c34\u2026\u4e00\u7bc7\u641e\u61c2\u4ea7\u54c1\u5bc6\u5c01\u90a3\u4e9b\u4e8b\u513f\uff01\u63d2\u56fe1\"
Definition of airtightness<\/em><\/figcaption><\/figure>\n\n\n\n

1.2 Relationship between airtightness and waterproof and dustproof performance<\/h3>\n\n\n\n

While there is no rating for airtightness per se, it is closely related to the water and dust resistance of the product.Good airtightness is a prerequisite for effective waterproofing and dustproofing. The waterproof and dustproof performance of a product is usually expressed in terms of its IP protection rating.<\/strong><\/p>\n\n\n\n

\"\u6c14\u5bc6\u6027\u3001IP\u7b49\u7ea7\u3001ATM\u9632\u6c34\u2026\u4e00\u7bc7\u641e\u61c2\u4ea7\u54c1\u5bc6\u5c01\u90a3\u4e9b\u4e8b\u513f\uff01\u63d2\u56fe2\"
Airtightness versus IP rating<\/em><\/figcaption><\/figure>\n\n\n\n

2. IP rating: protection against solids and liquids<\/h2>\n\n\n\n

The IP code consists of two numbers that indicate the level of protection against solid foreign objects and liquids, respectively.The first number indicates the dustproof rating and the second number indicates the waterproof rating. The higher the number, the better the protection.<\/strong><\/p>\n\n\n\n

\"IPXX
IPXX Protection Rating Chart<\/em><\/figcaption><\/figure>\n\n\n\n

2.1 First digit: Dust protection class<\/h3>\n\n\n\n