Understand the professional testing of masks/protective clothing

There are many kinds of masks. What kind of masks are effective and what kind of masks are qualified?

Qualified masks need to pass the national standard inspection, and only those products that pass the inspection are qualified products. From the production to the use of the general public, masks will go through various quality checks, such as "burning", "blood spraying" and "pulling".

First of all, the manufacturer will test according to the batch to ensure that the products meet the standard requirements.

Secondly, local quality supervision and inspection centers will conduct random checks from time to time. Once problems are found, they will face fines, while others will face suspension of business for rectification.

Finally, let's take a look at these test methods (according to the standard explanation).

StandardNo. [Recommended standard added with T]	Description	Testing standards and equipment
YY/T0969-2013 Disposable Medical Mask	Not applicable to medical protective masks and medical surgical masks	Mask pull: strength machine Bacterial filtration efficiency BFE: bacterial filtration efficiency BFE tester Ventilation resistance: mask exchange pressure difference
YY0469-2011 Medical Surgical Mask	Medical surgical mask	Mask pull: strength machine Blood penetration: synthetic blood penetration tester Particulate matter filtration efficiency PFE: Automatic filter efficiency tester [Oiliness] corresponds to KP classification Automatic filtration efficiency tester [Salinity] corresponds to KN classification Bacterial filtration efficiency BFE: bacterial filtration efficiency BFE tester Mask exchange pressure difference: mask exchange pressure difference tester Flame retardant performance: flame retardant performance tester for masks
GB 19083-2010 medical protective mask [mandatory standard]	medical respirators masks	Mask pull: strength machine Blood penetration: synthetic blood penetration tester Particulate matter filtration efficiency PFE: Automatic filter efficiency tester [Oiliness] corresponds to KP classification Automatic filtration efficiency tester [Salinity] corresponds to KN classification Bacterial filtration efficiency BFE: bacterial filtration efficiency BFE tester Mask exchange pressure difference: mask exchange pressure difference tester Flame retardant performance: flame retardant performance tester for masks Tightness: mask tightness tester Airflow resistance: respirator breathing resistance tester Moisture resistance: mask adhesion tester
GB 2626 -2006 respiratory protective articles self-priming filter respirator for preventing particulate matter	Not applicable to hazardous/anoxic/underwater/fire fighting, etc	Mask pull: strength machine Particulate matter filtration efficiency PFE: Automatic filter efficiency tester [Oiliness] corresponds to KP classification Automatic filtration efficiency tester [Salinity] corresponds to KN classification Protective effect: mask protective effect tester Airflow resistance: respirator breathing resistance tester Flame retardant performance: flame retardant performance tester for masks Pretreatment: temperature and humidity pretreatment box/mechanical pretreatment box Leakage: mask leakage tester Airtightness: Airtightness tester for expiratory valve of mask Dead space: mask dead space tester Airtightness: Airtightness tester for mask
GBT 32610-2016 technical specification for daily protective masks [recommended standard]	Not applicable to hazardous/anoxic/underwater/fire fighting/medical/industrial applications	Mask pull: strength machine Particulate matter filtration efficiency PFE: Automatic filter efficiency tester [Oiliness] corresponds to KP classification Automatic filtration efficiency tester [Salinity] corresponds to KN classification Protective effect: mask protective effect tester Airflow resistance: respirator breathing resistance tester Colour fastness to rubbing: colour fastness to rubbing tester PH value: PH meter Formaldehyde: formaldehyde tester

2021-01-07 16:36