The difference between the US standard and the national industry standard for door locks in several major technical indicators:
1. Square tongue static pressure US standard: square tongue static pressure test> 6000N
National industry standard: square tongue static load can be used normally when it can withstand 1000N
2. Handle Torque US Standard: Outside Locked and Unlocked Handle Torque >50Nm
National industry standards: the handle can still be used normally under 5Nm
3. American standard impact test on panel, lock head and lock tongue is divided into 1-3 grades, and the impact value is 100-700 joules.
4. American lock body compression: 1 level > 16000N, 2 level > 11000N, level 3 > 4400N
National industry standards are not
5. Life test American standard: 1 million times or more Kenyan standard: 1 level 1 million times, 2 level 300,000 times national industry standard: 1 level 100,000 times, square tongue 50,000 times according to the marble padlock technical terms American standard ASTMF883-04 Compared with the national industry standard QB1918-1933, the US standard also adds impact test, freezing test, lock ring shear test, lock ring torque and lock core pull test.
From the above main indicators, it can be seen that the US standard pursues the performance of locks. The national industry standards and the US standards have great gaps in the terms of mechanical testing. The lack of lock body torque, pressure, impact and other testing provisions, companies must meet US standards. For the compression and torque of the lock body, it is necessary to select a reasonable material, improve the design and production process. Some people say that the German locks are not many styles, but they are very classic and very durable. The old landlord can't live. The new landlord just needs to change a lock. The lock will not be bad for decades.
In 2005, a lock exporting unit in Ningbo, Zhejiang Province, found us and used to export locks to Kenya in Africa. The importer proposed to pass the inspection according to American standards and EU standards, and the manufacturers’ orders have been placed and the production has been cut. If the report issued by a qualified inspection agency cannot be exported, the product will not go out, the company's funds will be difficult to turn around, and the factory will stop production. To this end, our Zhejiang Lock Product Inspection Center immediately analyzed the following standards of the contract. At that time, the contract was implemented in the American standard ANSI, EU standard EN, Kenya KS, the main products are door locks, padlocks and cabinet locks. At that time, the company asked us to inspect according to American standards. We checked the information, translated the standard, designed and produced other tooling equipment such as door lock horizontal impact and vertical impact testing machine. The test results found that the products of the export enterprise could not withstand the press. The horizontal impact in the US standard clause, because the material is too thin, we went to the market to buy a variety of door locks, choose the thickest and heaviest lock body that is considered to be of good quality, also under the impact of 100 sets of ears, lock The body lock tongue panel is broken. In a large number of tests, it is difficult for the door locks produced in our country to pass the American standard mechanical test. We found that the Kenyan standard is much lower than the requirements of the US standard. With the consent of the customer, we have improved the testing technical conditions according to the requirements of Kenya's standards, and issued a test report according to the Kenyan standard, which solved the problem of the locks of the enterprise. Our laboratory expanded the number of foreign standards twice in 2005 and 2006, and passed the three-in-one certification of the national laboratory. Due to our timely response, we have given many foreign trade companies and enterprises throughout the year. Such as Shanghai Huihai Import and Export Trading Company, Shandong Weichai Import and Export Corporation, Zhejiang Bohai Foreign Trade Company, Ningbo Far East Import and Export Trading Company, Hefei Qianlong Import and Export Trading Company, Yiwu Hengfeng Import and Export Co., Ltd., etc. The unit of the right has issued a test report that is qualified and acceptable to the importing country, and timely responded to technical barriers to trade and served the enterprise. Make tens of millions of goods that will be put on hold in time. Our work has been well received by local governments, industry chambers of commerce and manufacturing companies. In short, in order to cope with the impact of foreign technology trade barriers on China, we must do a good job in understanding and collecting the latest foreign standards and technical regulations, continuously improve technical means, and strengthen research on new foreign technologies, new processes and new standards. Amend the standards of our country. Due to the relatively poor quality of lock products exported by China, the low grade and the structure of export products, trade barriers will become a huge obstacle to China's export commodities in the 21st century. The impact of trade technology barriers on the development of China's export trade has far more real and potential impact than anti-dumping issues. To break through the restrictions on trade technology barriers, the key is to improve the quality and grade of China's products. We must use high technology to transform traditional industries, improve the technological content of China's export products, promote the adjustment and upgrading of industrial structure, and explore international markets in multiple levels, all directions and wide areas. . At the same time, in view of the technical barriers involving unfair technical barriers, and involving administrative management issues, technical and policy-oriented, the general export enterprises often do not understand, therefore, there is no targeted policy, we should assist the enterprise Breaking foreign technical barriers and expanding exports. At the same time, we must study some specific measures and methods to break through the technical barriers to trade, actively explore the international market, and promote the sustainable development of China's export trade. With the development of the times, the awareness of the human environment has increased, the world political and economic structure has undergone major differentiation and reorganization, and the international field has also attracted compelling new features. The GATT (now WTO) victory in tariff reduction, the official establishment of the World Trade Organization, and the booming and prosperous international economic integration movement have made the entire international trade show a trend of trade liberalization. .
Under this trend, the protection measures in international trade have undergone major changes. In particular, in recent years, Western developed countries, such as the United States, Japan, and the major capitalist countries such as the European Union, have adopted a strong concealment and transparency. The lower, hard-to-supervise and predictive protection measures – technical barriers – have created significant obstacles to foreign trade in China and other countries, especially developing countries. Since 2005, China’s lock products have also encountered technical barriers to trade.
Technical barriers to trade mainly refer to the mandatory and non-mandatory commodity standards and regulations formulated by the countries where the goods are imported, as well as the trade barriers formed by the conformity assessment of the goods, that is, the laws, decrees, regulations, regulations, Establish technical standards, certification systems, inspection systems, etc., improve product technical requirements, increase import difficulty, and ultimately achieve the purpose of restricting imports.
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