• <tfoot id="mmm0m"><noscript id="mmm0m"></noscript></tfoot>
  • <tr id="mmm0m"></tr>
  • <nav id="mmm0m"><sup id="mmm0m"></sup></nav>
    • 26uuu另类亚洲欧美日本,亚洲高潮喷水无码AV电影,久草热在线视频免费播放,亚洲精品午夜国产VA久久成人,自拍偷拍第一区二区三区,国产精品亚洲二区亚瑟,色老头在线一区二区三区,中文字幕在线精品人妻
      Hotline:400-880-1556

      English




      basic introduction

      Protective eyewear is a kind of glasses with special functions, and the glasses with different needs in different occasions are used. There are many types of protective glasses, including dust-proof glasses, impact-proof glasses, chemical-resistant glasses, and anti-light radiation glasses. Protective glasses, also known as labor protection glasses, are divided into safety glasses and protective masks. Their role is to protect the eyes and face from the radiation of ultraviolet, infrared and microwave waves, dust, smoke, metal and sand debris, and chemical solutions. Sputtering damage. Because it is related to the health and safety of human life, the detection of goggles is particularly important.

      Goggles testing standard: GB14866: 2006

      GB14866: 2006 "Technical requirements for personal eye protectors"

      This standard specifies the classification structure, specifications, materials, technical requirements, test methods, inspection rules, packaging and transportation of eye and face protectors.

      This standard applies to the research, design, production, use and inspection of eye and face protectors.

      Goggles GB14866 test project

      1. Eyes and face protection equipments for eye and face protection

      Protective equipment against electromagnetic waves, chemical substances, metal sparks, flying debris, and dust that can damage your eyes and face (including neck).

      2. Cover for eye protection

      Eye protectors with single or double lenses are installed in the headband frame.

      3. Protective glasses spectacles for protection

      Eye protectors with various eye protection lenses are installed in the frame of the spectacle frame.

      4. Protective face mask

      Various protective gears covering the face (including neck).

      5. Protective optics

      Various light-transmitting components that protect the eyes from harmful factors.

      6. Optical horizontal reference length

      The length of the center horizontal reference line between the top and bottom of the lens.

      7. Optical vertical height

      The length of the center line perpendicular to the horizontal reference line of the lens.

      8. Optical central scope

      Area within 5mm from the edge of the lens.

      9, focal power

      The quantity that characterizes the optical system's ability to converge or diverge light. The value is the reciprocal of the distance from the back vertex of the lens to the focal point. Unit: Diopter (D).

      10. Parallelism (also called prism degree) depth of parallelism The degree of deflection of the light beam through the lens. Unit: cm / m, symbol: △.

      11. Protective cover

      The transparent lens is placed in front of the filter to protect the filter from external scratches and loss of metal slag.

      12. Side guard

      Curved or flat parts are attached to the spectacle frame to prevent harmful factors from the side to the eyes.

      13. Filter

      Lenses used to reduce harmful infrared rays, ultraviolet rays, dazzling visible light and other radiation to standard levels (generally have a fixed color).

      Goggles GB14866 test process

      1. Project application——submit an application for quality inspection report to ZRLK inspection and supervision.

      2. Document preparation-According to the requirements of GB14866, the enterprise prepares relevant certification documents.

      3. Product testing-the enterprise sends the samples to be tested to the laboratory for testing.

      4. Preparation of reports-Certified engineers prepare reports based on qualified test data.

      5. Submit the audit-the engineer will review the complete report.

      6. Issuing the certificate-after the report is verified, the quality inspection report will be issued.


      Online consultation

      Online consultation

      Recommend
      • Brazil ANATEL Certification

        Brazil ANATEL Certification

        ANATEL certification is a mandatory certification for telecommunications equipment or related equipment by the Brazilian National Telecommunications Administration (Agência Nacional de Telecomunica??es), including wireless communication equipment, wired communication equipment and related auxiliary equipment; this certification ensures that telecommunications equipment sold in the Brazilian market meets Brazil\'s technical standards and regulatory requirements, and guarantees the product\'s quality requirements such as radio frequency, electrical safety, electromagnetic compatibility, and electromagnetic exposure. If the product entering Brazil does not complete ANATEL certification, it may face fines, seizures, and other penalties.

      • COC certification in Algeria

        COC certification in Algeria

        COC certification in Algeria is a mandatory certification for products exported to Algeria, ensuring that the products comply with the country\'s safety, quality, and technical standards. The certification process includes document review, product testing, and factory inspection. Products that pass certification can be legally sold in the local market, protecting consumer interests and promoting fair trade.

      • Saudi Arabia GCC Certification

        Saudi Arabia GCC Certification

        GCC certification is the abbreviation for Gulf Cooperation Council certification, which is a mandatory certification requirement for products entering the market in Saudi Arabia and other countries in the Gulf region.

      Goggles testing and certification

      Protective eyewear is a kind of glasses with special functions, and the glasses with different needs in different occasions are used. There are many types of protective glasses, including dust-proof glasses, impact-proof glasses, chemical-resistant glasses, and anti-light radiation glasses.

      Get a quote
      主站蜘蛛池模板: 国产极品粉嫩福利姬萌白酱| 亚洲夜色噜噜av在线观看| 农村熟女大胆露脸自拍| 日本中文字幕不卡在线一区二区| 久久男人av资源站| 四虎永久精品在线视频| 国产99青青成人A在线| 成人午夜电影福利免费| 国模精品视频一区二区三区| 国产成人精品亚洲资源| 久久道精品一区二区三区| 日韩精品中文字幕人妻| 亚洲精品无码成人A片九色播放| 麻豆国产成人AV在线播放| 亚洲精品美女久久久久9999| 久久影院午夜伦手机不四虎卡 | 人妻中文字幕一区二区视频| XXXXXHD亚洲日本HD| 午夜福利看片在线观看| 亚洲精品日韩在线丰满| 不卡乱辈伦在线看中文字幕| 亚洲av伦理一区二区| 无码AV无码天堂资源网影音先锋| 一本色道久久—综合亚洲| 国产男女猛烈无遮挡免费视频网址 | 国产成人a在线观看视频| 国产99在线 | 免费| 国产精品福利自产拍在线观看| 亚洲一区二区精品偷拍| 人妻中文字幕av资源站| 啊轻点灬大JI巴太粗太长了欧美 | av一区二区中文字幕| 人人爽亚洲aⅴ人人爽av人人片| 小伙无套内射老熟女精品| 久久亚洲国产成人精品性色| 激情综合色综合久久综合| 亚洲av无码之国产精品网址蜜芽 | 国产精品乱码人妻一区二区三区| 国产精品无码不卡在线播放| 精品午夜久久福利大片| 亚洲天堂在线观看完整版|