中文字幕日韩在线观看,久久久人人玩人妻精品综合,国产欧美日本在线,久久精品免费视频6,欧美精品黄色网站,色综合久久久久无码专区,亚洲区欧美中文字幕久久,国产手机在线视频,国产中文字幕视频在线观看,日本一区二区免费在线观看

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
  • BSCI certification

    BSCI certification

    BSCI certification is an abbreviation of BusinessSocialComplianceInitiative, and Chinese is called business social standard certification. BSCI is an organization that advocates the business community to abide by social responsibility. At the same time, it is a non-profit organization.

  • Enterprise CMA certification

    Enterprise CMA certification

    CMA, the name is \"China Metrology Accreditation\", the abbreviation of \"China Metrology Accreditation\" in English. According to the provisions of Article 22 of the Metrology Law of the People’s Republic of China: “The product quality inspection agency that provides notarized data to the society must be evaluated by the metrological administrative department of the people’s government at or above the provincial level for the capability and reliability of metrological verification and testing. Qualified.\"

  • CNAS certification

    CNAS certification

    Laboratory accreditation is a third-party certification that CNAS has the ability to perform specific testing and calibration work for testing and calibration laboratories.

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
中国熟妇浓毛hdsex| 乱人伦人妻中文字幕无码久久网| 色悠久久久久综合先锋影音下载| 国产精品无码一区二区牛牛| 国产卡一卡二卡三卡四| 免费国产污网站在线观看| 色哟哟网站在线观看| 国产美女裸体无遮挡免费视频下载| 小泽玛利亚 一区二区| 91视频第一页| 亚洲AV成人无码久久影院| 樱花草WWW日本在线观看| 露脸国产精品自产拍在线观看| 国产精品久久久久久精品三级| 国产高清乱码又大又圆| 亚洲啪AV永久无码精品放毛片| 国产AV剧情MD精品麻豆| 无码超乳爆乳中文字幕久久| 大陆极品少妇内射AAAAA| 亚洲AV午夜福利精品一区二区| 精品日韩欧美一区二区在线播放 | 亚洲综合熟女久久久30p| 国产精品免费大片| 丰满少妇被猛烈进入| 日本午夜免费福利视频| 欧美亚洲色综久久精品国产| 久久精品青草社区| 久久精品国产亚洲av忘忧草18| 成人国产在线| 久热这里只有精品3| 欧美日一区二区| 欧美激情乱人伦| 第一福利网站| 免费看含羞草AV片成人| 麻豆乱码国产一区二区三区| 国产在线精品一区二区| 久久久人人人婷婷色东京热| 久久久久亚洲av无码专区首| 妺妺窝人体色www聚色窝仙踪| 老汉色老汉首页a亚洲| 成人毛片18女人毛片免费|