ASTM F2892 Standard Visual Field Measurement Device
Get a quote：
Whats/App: +86 156 1874 6768
Web: standard-groups.com
The Mask Visual Field Tester is designed to evaluate whether the field of vision under a mask meets standard requirements. It ensures that respirators, protective masks, and daily-use masks provide adequate visibility for safe and effective use. The instrument is widely used for quality control, R&D, and certification testing of mask products.
Standards
The instrument is compliant with the following standards:
(1) GB 2890-2009 – Respiratory protection — Self-priming filter gas mask, Section 6.8: Field of vision
(2) GB 2626-2019 – Respiratory protective products — Self-priming filter anti-particulate respirator, Section 6.10: Field of vision
(3) GB/T 32610-2016 – Technical specifications for daily protective masks, Section 6.12: Field of vision
Features
(1) Hemispherical surface of visual field, including holder, accurately measures left and right vision angles
(2) Standard head mold equipped with electric beads and control switch
(3) Spherical projection of field of vision for precise measurement
(4) Head mold can move left and right to simulate real-life mask usage
(5) Compact and portable design suitable for laboratory or production floor testing
(6) Provides objective verification of visual field compliance for respirators and masks
Technical Parameters
| Item | Specification |
|---|---|
| Perimetry Semicircle Radius | 305 mm |
| Left and Right Field of Vision | ≤120° |
| Pupillary Distance | 62.5 mm |
| Head Mold | Movable left and right |
| Instrument Dimensions | 800 × 500 × 750 mm |
| Weight | 30 kg |
Accessories
(1) Standard head mold with electric bead installation
(2) Field of vision hemispherical surface holder
(3) Control switch module for head mold movement
(4) Power cable
(5) Operation manual
(6) Calibration certificate
在线联系供应商
Other supplier products
 |
Automotive Wires Ozone Aging Chamber | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standards ISO 6722: Road vehicles – Electrical cables – Dimensions and test me... |
 |
Spring Testers and Testing Machines | Whats/App: +86 156 1874 6768 Web: standard-groups.com The Spring Tension and Compression Testing Machine is designed to accurately evaluate the t... |
 |
Safety Helmets Against Molten Metal Splashing Tester | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standard GB/T 2812-XXXX: Safety Helmets – Test Methods for Molten Metal Resistance (... |
 |
Accurate snap button pull tester | Get a quote： Whats/App: +86 156 1874 6768 Web: standard-groups.com The Snap Button Tester is a device specifically designed to test the durabili... |
 |
High-Low Temperature Humidity Test Chamber | Whats/App: +86 156 1874 6768 Web: standard-groups.com Applications High and Low Temperature Humidity Test Chamber is designed for performance an... |
Same products
 |
Laser Cutting Machines | 卖方: Chanxan (Changshu) Laser Technology Co., Ltd. | Laser Cutting Machines PrecisionLaser Cutting Systemsfor Film, Glass & Industrial Materials ... |
 |
Precision Laser Micromachining Machine | 卖方: Chanxan (Changshu) Laser Technology Co., Ltd. | Precision Laser Micromachining Machine| Ultrafast Laser Micromachining Systems Chanxan provides ... |
 |
Ultrafast Laser Systems | 卖方: Chanxan (Changshu) Laser Technology Co., Ltd. | Ultrafast Laser Systems Femtosecond Laser System Ultra-precision femtosecond laser systemfor hi... |
 |
Industrial Laser Equipment Manufacturer | 卖方: Chanxan (Changshu) Laser Technology Co., Ltd. | Industrial Laser Equipment Manufacturer for Precision Cutting, Marking & Micromachining Chan... |
 |
Common Rail Injector Valve F00R J02 012 | 卖方: 868983 | Common Rail Injector Valve F00R J02 012 David Chen |
