• <abbr id="ck0wi"><source id="ck0wi"></source></abbr>
    <li id="ck0wi"></li>
  • <li id="ck0wi"><dl id="ck0wi"></dl></li><button id="ck0wi"><input id="ck0wi"></input></button>
  • <abbr id="ck0wi"></abbr>
  • <li id="ck0wi"><dl id="ck0wi"></dl></li>
  • Home >

    The First Civil Respirator Standard Came Out.

    2016/4/26 18:29:00 32

    CivilianRespiratorStandard

    With the development, the quality of air is getting worse and worse, so more and more people wear masks to protect smoke and dust.

    Recently, China's first "daily protective mask technology specification".

    Country

    The standards were promulgated.

    It is understood that the protection effect and safety performance of fine particulate matter (PM2.5) are the two key indicators of the "daily protective mask technical specification".

    This standard is applicable to respirators that are used to remove particulates in air pollution environment in everyday life.

    The standard will be formally implemented in November 1, 2016.

    However, this standard does not apply to children's respirators.

    The protection effect is the core index of the standard.

    Protective effect

    The fruit grade is set according to the air quality category of the national air quality standard, and the protection effect grades are divided into four levels from low to high: D, C, B and A-level, the corresponding environment is as follows: D level is suitable for moderate (PM2.5 concentration less than 15 mg / m3) and the following pollution, C level is suitable for severe (PM2.5 concentration less than 250 microgram / cubic meter) and the following pollution, B level is suitable for serious pollution (PM2.5 concentration is less than 350 micrograms / cubic meter), class A is used at PM2.5 concentration of 500 micrograms / cubic meter.

    Wearing masks according to standard requirements can reduce the concentration of inhaled PM2.5 to less than 75 micrograms / cubic meter, so that the air quality in inhalation can reach the level of above and above.

    Safety performance is an important indicator of the standard.

    In order to ensure the safety of consumers when wearing protective masks, the standard requires that masks should be securely and firmly protected at the mouth and nose. There should be no sharp sharp corners and sharp edges. The criteria for formaldehyde, dyes, microorganisms and other harmful elements that may cause harm to human body are specified in detail.

    Taking into account the safety of the wearer when walking, the standard stipulates that the visual field below the mask should not be less than 60 degrees, so that the wearing of the wearer can be avoided because of the high arch design of the mask.

    In addition, due to the large differences in physical characteristics of children,

    Respiratory resistance

    The accumulation of medical data and experimental data for children's growth needs to be perfected. Therefore, this standard does not apply to children's respirators.


    • Related reading

    Bazhou Launched The Action Plan For Developing The Textile And Garment Industry To Promote Employment In 2016

    Regional policy
    |
    2016/4/26 15:54:00
    32

    Gaomi City Faces New Normal To Promote Pformation And Upgrading Of Textile Industry

    Regional policy
    |
    2016/4/25 14:43:00
    40

    The State Council Has Formally Promulgated The Plan For Improving The Quality Of Infant Garments.

    Regional policy
    |
    2016/4/23 13:55:00
    36

    The Implementation Of Inventory Management Will Be Conducive To The Development Of Hai Tao'S Code.

    Regional policy
    |
    2016/4/19 20:21:00
    16

    The Change Of Cross Border Import Tax Is Bad For The Clothing Industry.

    Regional policy
    |
    2016/4/18 22:57:00
    64
    Read the next article

    The Number Of Layoffs In The Richemont Group Has Shrunk To 100.

    Cartier Cartire, Piaget Earl and Vacheron Constantin Vacheron Constantin are quite popular brand watches in China, and its Richemont SA group will lay off staff.

    主站蜘蛛池模板: 男人j进女人p一进一出视频| 国产精品久久久久久| 国自产拍91大神精品| 国产一区二区三区在线观看免费| 亚洲sss综合天堂久久久| 久久免费看黄a级毛片| 18禁亚洲深夜福利人口| 男人的天堂黄色| 成人女人a毛片在线看| 国产亚洲欧美精品久久久| 亚欧洲精品在线视频免费观看 | a级国产乱理伦片在线观看| 色妞色视频一区二区三区四区| 日韩精品久久一区二区三区| 国产精品人人做人人爽人人添| 亚洲精品无码av中文字幕电影网站 | 337p色噜噜| 波多野结衣xfplay在线观看| 女性高爱潮有声视频| 又大又紧又硬又湿a视频| 久久久久AV综合网成人| 韩国午夜理伦三级2020韩| 日韩精品有码在线三上悠亚| 国产女人18毛片水真多18精品| 亚洲AV无码AV吞精久久| 香蕉狠狠再啪线视频| 日韩在线一区二区三区| 国产成人精品久久| 九九免费观看全部免费视频| 亚洲情综合五月天| 欧美一区二区久久精品| 国产精品亚洲产品一区二区三区| 亚洲国产美女精品久久| 91福利视频一区| 欧美浓毛大泬视频| 国产精品自产拍在线网站| 亚洲春色第一页| 1024手机看片基地| 欧美yw精品日本国产精品| 国产午夜精品久久久久免费视| 久久人人爽人人爽人人片dvd|