The main purpose
This instrument is used to simulate the evaluation of the reflective performance of occupational high-visibility warning materials in the dry state and the rain-wet state, and to determine the retroreflective coefficient of the sample surface. It is suitable for the visibility warning clothing worn by various positions. Ensure personnel safety warnings.
Technical index
1. The hard plastic cover is equipped with a movable door, and the cover has square holes with a side length of 150mm;
2. The gutter can block the falling water, and the square holes are painted with black paint;
3. The nozzle diameter is 1.19mm, and the water supply pipe produces a cone-shaped stable and uniform water column;
4. The distance between the nozzle and the sample is 1000mm;
5. When the water column contacts the sample, it forms an angle of (10±5) degrees with the surface of the sample in the vertical direction;
6. The pressure stabilizing device makes the pressure adjustment stable and even, easy to control, and is equipped with a water collection tank and a collector;
7. Specimen rack device, specimen size: 150mm×150mm;
8. Water spray speed: 284mm/h;
9. Time control: 0-99.99min, accuracy: 0.01min;
10. Power supply: 220V 50HZ;
11. Light source: standard light source A, color temperature is 2856K;
12. Light detector: Illuminance meter 0.01lx～200klx, aperture angle δ<12';
13. Observation angle α: 12′～2° adjustable, accuracy: 6′;
14. Incident angle β: 0°～40° adjustable, accuracy: 1°;
15. Sample frame: It can be accurately positioned on the first rotation axis β1 and the second rotation axis β2;
16. The distance between the light detector and the sample surface: 15m.
Applicable standards
GB 20653-2020 "Protective clothing—High visibility warning clothing for professional use" Appendix C Appendix E
GB/T 33536-2017 Protective clothing Forest fire protection clothing
GB/T 38046-2019 car occupant reflective vest

GB 8965.2-2022 Protective clothing — Protective clothing for Welders