【Scope of application】

It is used to test the visual field effect of daily protective masks, face masks, gas masks, etc. It is suitable for labor safety protection inspection centers, medical equipment and drug inspection centers, disease prevention and control centers, textile inspection centers, masks and mask manufacturers, etc.

【Standards compliant】

GB/T 32610-2016 Technical specifications for daily protective masks

GB 19083-2010 Technical requirements for medical protective masks

YY 0469-2011 medical surgical mask

GB 2626-2006 Respiratory protective equipment

GB 2890-2009 Respiratory protection Self-priming filter type gas mask

GB/T 16556-2007 Self-contained open-circuit compressed air breathing apparatus

【technical parameter】

1. Perimeter: semi-circular arc bow: radius 300040 mm, which can be rotated around a horizontal radius passing through 0 °, and the arc bow is marked with a scale line (one scale every 15 °)

2. Test head mold: a standard head mold, with small bulbs in the two eye holes of the head mold, and the position of the bulb and the placement of the head mold are in accordance with the requirements of the standard GB 2890

3. Using a dedicated PC upper computer software system, automatically calculated by PLC touch screen + computer: field of view area; unit of measurement: mm2