Water absorption tester- Cobb Tester TP-C21 is used for the determination of the water absorption of sized paper, paperboard, and corrugated paper under standard conditions within 200 to 250 g/m2 range by Cobb method. It is adopted with overturn structure for ease of operations.
| Measurement range | |
|---|---|
| Slider weight | |
| Slider size | |
| Testing accuracy | |
| Dimension of working plate | |
| Speed of slider | |
| Slider stroke | |
| Specimen size | |
| Division value | |
| Number of specimen holders | |
| Metal Cylinder inner area | (100 ± 0.2) cm2 |
| Metal Cylinder height | 50 mm |
| Metal roller width | (200 ± 0..5) mm |
| Metal roller weight | (10 ± 0.5) kg |
| Absorbency paper | 200 to 250 g/m2 |
| Absorbency speed | 75 mm/10 min |
| Sealed testing speed | |
| Volume of distilled water | |
| Sample diameter | 125 mm |
| Sample error | |
| Sample Thickness | |
| Draining time | |
| Residual water volume | |
| Hydraulic pressure | |
| Dimension | 270×400×300 mm |
| Net Weight | 35 kg |
Cobb tester (water absorption tester) is used to test water absorption of sized paper, paperboard, corrugated paper in paper & printing industry, packaging industry.
| Measurement range | 5 to 500 N, 50 to 3000 N |
| Resolution | 1 N |
| Accuracy | ± 1 % |
| Variability | ≤ 1 % |
| Sample (size) length | Diameter ≥30 mm, Thickness ≤ 40 mm |
| Measurement mode | Diffuse reflection factor Rx, Ry, Rz, stimulus value Y10, X10, Z10, chromaticity coordinates x10, y10, z10; lightness L *, chroma a * b *, chroma C * ab, hue angle h * ab, dominant wavelength λd, excitement purity Pe, color difference ΔE * ab, lightness difference ΔL *, chroma difference ΔC * ab, hue difference ΔH * ab, Hunter system L , A, b |
| Stability | ≤ 0.1 within 30 min |
| Accuracy | Chromaticity co-ordinate 0.0001 |
| Sample width | 15 mm |
| Sample maximum length | 300 mm |
| Parallelism | ≤ 0.1 mm |
| Dimension | 240×520×70 mm |
| Measuring range | 0 to 20 mm |
| Accuracy | 0.01 mm |
| Gauge | Analogue gauge display |
| Contact pressure (to create false weight) | 20 ± 0.5 kPa |
| Measurement range | 0 to 5600 kPa |
| Accuracy | ± 0.5 % F.S. |
| Compression speed | 170 ± 15 ml/min |
| Clamp pressure | ≥ 690 kPa |
| Measuring range | 0.1 to 10 kN |
| Indication error | < ± 1% |
| Platen Size | 500×500 mm (customized) |
| Operating stroke | 500 mm (customized) |
| Sample (size) length | 90 to 200 mm |
| Sample width | 15 mm, 25 mm, 50mm |
| Measuring range | 0 to 30, 0 to 100 N,0 to 300 N |
| Accuracy | ± 1 % |
| Measurement range | 0 to 200 mm |
| Specimen size | 15×250 mm |
| Division value | 1 mm |
| Number of specimen holders | 5 |
| 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<br/> Smaller volume: 38 ± 1 |
| Contact pressure | 100 ± 2 kPa |
| Measuring range | 0 to 4 mm |
| Accuracy | 0.01 or 0.001 mm |
| Gauge | Analogue gauge display |
| Contact pressure (to create false weight) | 100 ± 10 kPa |
| Measuring range | 10 to 1000 mN |
| Division value | 1 mN |
| Accuracy | ± 1% |
| Indicating Error | ≤ 0.5 |
| Testing speed | 200° ± 20° / min |
| Test range | 1 to 10000 mN |
| Indicating Error | ± 1 % |
| Testing length | 5, 10, 15, 20, 25, 50 mm |
| Sample (size) length | 38×70 mm |
| Measuring range | (1-500) mN.m (divided into 7 small ranges) |
| Indication error | 0.02 |
| Test speed | (200° ± 20°)/ min |
| Measuring range | A (1 to 6) J indicating error ± 0.05 J<br/> B (1 to 12) J indicating error ± 0.05 J<br/> C (1 to 24) J indicating error ± 0.05 J<br/> D (1 to 48) J indicating error ± 0.05 J<br/> The indicating errors w.r.t measurement range of 20 to 80 % |
| Frictional resistance | <0.25 J |
| Pyramid dimension | Three sides: 60×60×60 mm, height 25 ± 0.7 mm, Arris edge fillet radius 1.5 ± 0.1 mm |
| Dimension | 800×470×840 mm |
| Measuring range | 0 to 1000 mN |
| Resolution | 0.1 mN |
| Indication error | ± 1 % |
| Tearing arm | 104 ± 1 mm |
| Test arm weight | 2.5 N |
| Additional Loads | 2.5 ± 0.1 N, 5 ± 0.1 N, 10 ± 0.1 N, |
| Idler | 150 mm |
| Abrasion stroke | 40 ± 0.2 M |
| 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 |
| Display | LED display |
| Temperature control range | Room temperature to -70 ℃ (room temperature ≤ 25 ℃） |
| Temperature accuracy | ± 0.3 ℃ |
| Impact speed | 0℃ to -30℃ around 2.5 ℃/min </br> -30℃ to -40℃ around 2.5 ℃/min </br> -40℃ to -70℃ around 2.0 ℃/min</br> |
| Max dimension L × W × H | 910 × 510 × 860 mm |
| Measuring range | 0.001 to 9999 |
| Stability | A (absorbency of light) <0.003 within 3 mins |
| Linearity error | <3.0 % |
| Repeatability error | A (absorbency of light) <0.005 |
| Measuring range | 0.001 to 9999 |
| Stability | A (absorbency of light) <0.003 within 3 mins |
| Linearity error | <3.0 % |
| Repeatability error | A (absorbency of light) <0.005 |
| Salinity Measurement range | 0.00 to 19.99 ms/cm |
| Measuring accuracy | EC ± 2% full scale |
| Temperature Measurement range | -5 to 50°C |
| Temperature accuracy | ± 0.5°C |
| Test angle | 60° |
| Gloss aperture | 2 × 3 mm |
| Measurement range | 0 to 1000 GU |
| Repeatability | 0.2 GU (0 to 100 GU), 0.2 % GU (100 to 1000 GU) |
| Preliminary test force | 98 N |
| Total test force | 588, 980, 1471 N |
| Total test force dwell time | 0 to 30 S |
| Hardness indication | Analogue display |
| Preliminary test force | 98 N |
| Total test force | 588, 980, 1471 N |
| Brinell hardness test | 306, 613, 1839 N |
| Vickers hardness test | 294, 588, 980 N |
| Preliminary test force | 98 N |
| Total test force | 588, 980, 1471 N |
| Total test force dwell time | 1 to 30 S |
| Hardness indication | Digital display |
| Sample (size) length | Diameter ≥30 mm, Thickness ≤ 40 mm |
| 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 % |
| Sample (size) length | Diameter ≥30 mm, Thickness ≤ 40 mm |
| Measurement mode | Diffuse reflection factor Rx, Ry, Rz, stimulus value Y10, X10, Z10, chromaticity coordinates x10, y10, z10; lightness L *, chroma a * b *, chroma C * ab, hue angle h * ab, dominant wavelength λd, excitement purity Pe, color difference ΔE * ab, lightness difference ΔL *, chroma difference ΔC * ab, hue difference ΔH * ab, Hunter system L , A, b |
| Stability | ≤ 0.1 within 30 min |
| Accuracy | Chromaticity co-ordinate 0.0001 |
| Sample (size) length | 38×70 mm |
| Measuring range | (1-500) mN.m (divided into 7 small ranges) |
| Indication error | 0.02 |
| Test speed | (200° ± 20°)/ min |