Jiangsu Province Takes The Lead In Formulating The Technical Specification For Daily Protective Respirators.

Informed by the Jiangsu province led by the "daily protective type"

The technical specification has been released recently and will be formally implemented in November 1, 2016. This is the first national standard for civil respirators in China.

The leading national standard is provincial special safety protection.

Quality supervision and inspection center.

"The new GB no longer simply regards filtration efficiency as the main evaluation index of masks, and adopts the brand new comprehensive evaluation system of" protective effect ".

Lu Bing, director of the provincial special protection center, introduces two key indicators, one is the protection against fine particulate matter (PM2.5), and the other is the safety performance of the two.

According to the air quality category, the new national standard has divided the four grades of respirator protection effect, which is suitable for different situations such as severe and moderate pollution, and is convenient for consumers to choose.

Among them, the D level is suitable for moderate (PM2.5 concentration of 150 microgram / cubic meter) and the following pollution. C level is suitable for severe (PM2.5 concentration of 250 micrograms / cubic meter) and below pollution, B level is suitable for serious and below pollution (PM2.5 concentration of 350 micrograms / cubic meter), class A is used at PM2.5 concentration of 500 micrograms / cubic meter.

No matter which level of respirator is selected, the filtered air must reach a good standard, that is, the concentration of PM2.5 is 75 micrograms per cubic meter.

In addition, the safety index is mainly for formaldehyde, pH value, microorganism, and so on.

Safety.

"In the past, there were no such indicators in the industrial masks. After the promulgation of the GB, the market order will be standardized, and the product development and quality control of enterprises should be guided correctly."

Lu Bing introduced, 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, and avoid overlooking the wearer's gaze because of the high arch design.