Whiteness meter TP-A11 is used to measure the whiteness of objects. Its compact, advanced circuit design ensures the accuracy and stability of measurement data. It measures ISO (R457) whiteness and fluorescence whitening of the materials. The whiteness meter is provided with light absorber to eliminate the influence of specular reflection of the sample.
Buy Now View Catalog| Sample (size) length | Diameter ≥30 mm, Thickness ≤ 40 mm |
| Sample width | |
| Measuring range | |
| Measurement mode | |
| Stability | |
| Accuracy | |
| Tensile strength velocity | |
| Tensile return velocity | |
| Sample loading | |
| Clamp air pressure | |
| Repeatability | |
| System | D/0 lighting geometrical viewing conditions, diffuser diameter (d) 150mm, testing hole diameter 30mm |
| Light source | D65 as illuminating source |
| Zero drift | ≤ 0.1 % |
| Indication drift | ≤ 0.1 % |
| Indication error | ≤ 0.5 % |
| Test speed | |
| Repeatability error | ≤ 0.1 % |
| Mirror reflection error | ≤ 0.1 % |
| Light measurement | |
| Storage | |
| Dimension (L*W*H) | 360 × 264 × 400 mm |
| Net weight | 20 kg |
| Power supply | 220 V ± 10 %, 50 Hz |
Whiteness meter is widely used to measure whiteness in paperboard, textile printing & dyeing, paint, plastic products, ceramic, enamel, detergent, cosmetics.
Sample width : 15 mm
Sample maximum length : 300 mm
Parallelism : ≤ 0.1 mm
Sample size (L*B) : 230×50 mm (can join short samples together)
Rub pressure : 20 ± 0.2 N
Friction speed : 43 times / min
Measuring range : 0 to 1000 ml/min
Test area : 10 ± 0.02 cm2
Area differential pressure : 1 ± 0.01 kPa
Measurement range : 0 to 100° SR
Sealed testing speed : 100 ± 10 mm/s
Volume of distilled water : 1000 ± 5 ml
Measurement range : 0.01 to 10 N
Slider weight : 200 g
Slider size : 63×63 mm
Sample (size) length : 38×70 mm
Measuring range : (1-500) mN.m (divided into 7 small ranges)
Indication error : 0.02
Capacity : A: 20 to 500 J/m2 B: 500 to 1000 J/m2
Impact angle : 90°
Unit : Lb-ft/in2 J/m2
Measuring scope : ( 1 to 9999) s, divided in to (1 to 15) s, (15 to 300) s, (300 to 9999) s, the automatic (no. more than 200 s)
Accuracy : ±0.1 s within 300 s
Vacuum system volume (ml) : Bigger volume: 380 ± 1
Smaller volume: 38 ± 1
| Mixed capacity | 0.5 to 1 kg, 2 to 3 kg, 5 to 7 kg |
| Temperature range | RT to 300°C |
| Temperature control system | PID control |
| Temperature control range | Room temperature to -70 ℃ (room temperature ≤ 25 ℃） |
| Temperature accuracy | ± 0.3 ℃ |
| Impact speed | 0℃ to -30℃ around 2.5 ℃/min -30℃ to -40℃ around 2.5 ℃/min -40℃ to -70℃ around 2.0 ℃/min |
| Vacuum degree | 0 to 90 KPa |
| Accuracy | 1 % FS |
| Resolution | 0.1 KPa |
| The maximum temperature | 300°C |
| Temperature fluctuation | Within ± 0.5°C |
| Temperature uniformity | Within ± 1°C |
| Measuring range | 0.001 to 9999 |
| Stability | A (absorbency of light) <0.003 within 3 mins |
| Linearity error | <3.0 % |
| Measuring range | 0.001 to 9999 |
| Stability | A (absorbency of light) <0.003 within 3 mins |
| Linearity error | <3.0 % |
| Preliminary test force | 98 N |
| Total test force | 588, 980, 1471 N |
| Total test force dwell time | 0 to 30 S |
| Preliminary test force | 98 N |
| Total test force | 588, 980, 1471 N |
| Total test force dwell time | 1 to 30 S |
| Test angle | 60° |
| Gloss aperture | 2 × 3 mm |
| Measurement range | 0 to 1000 GU |
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