
Paper, cardboard, plastic, pulp, salt, industrial salt; Starch, calcium carbonate, talcum powder and other powders.

● Determination of D65 brightness (R457 blue light whiteness)
● Determination of the fluorescence whiteness produced by the emission of a fluorescent substance (the specimen contains a fluorescent brightener)
● Determination of opacity OP (customized), light scattering coefficient S, light absorption coefficient A, transparency (customized), ink absorption value
● The luminance stimulus value Y10, the green light diffuse reflection factor Ry, was measured
● Determination of optical density - lead core concentration (customized small caliber)

● The advanced circuit design effectively ensures the accuracy and stability of the measurement data
● The instrument has a power-off protection function, and the calibration data will not be lost after power-off
● The instrument is equipped with a standard RS232 interface, which can be used for communication with microcomputer software (purchased separately)

GB/T 7973,GB/T 7974,GB/T 2679,GB/T 1543,GB/T 10339,GB/T 12911,GB/T 2913
GB/T 13025.2,GB/T 22427.6,ISO 2469,ISO 2470,ISO 2471,ISO 9416

NO. | Name | Model | Picture | Standard | Optional |
1 | Flating Powder Holder | YT-QY | |
| √ |
2 | Fiber Sample Holder |
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| √ |

NO. | Parameter items | Technical Indicators |
1 | Power supply | AC(100~240)V,(50/60)Hz,50W |
2 | Working environment | Temperature: (10~35)°C, relative humidity≤ 85% |
3 | Display | 128X32 dot matrix LCD screen |
4 | Light source | simulates D65 |
5 | Integrating spheres Diameter | 150mm |
6 | Specimen size | The test plane ≥ φ30mm, and the thickness ≤ 40mm |
7 | Zero drift | ≤0.1 |
8 | Indication error | ≤0.5 |
9 | Repeatability error | ≤0.05 |
10 | Specular reflection error | ≤0.1 |
11 | Print | Built-in thermal printer |
12 | Communication interface | RS232 (optional) |
13 | Dimensions | 370×260×425 mm |
14 | Net weight | 11 kg |