68-50 Brightness & Color Meter
INTRODUCTION
The model 68-50 Brightness & Color Meter makes measurement of brightness, color and opacity affordable in Production and QC applications. The Brightness & Color Meter measures color, color purity, degree of yellowness, degree of whiteness, color matching and color fastness. The TMI Brightness and Color Meter operates in accordance with CIE Publication No. 15.2 “Standard of Colourimetry” and was designed to meet ISO, ASTM, TAPPI and other International Standards.
APPLICATIONS
Applications of the instrument include paper, pulp, packaging, nonwoven, textile dyeing and printing, color printing, construction materials and ceramics, chemicals, paints, medicines, food, recycled pulp products and mineral industries.
FEATURES
- Large alpha-numeric display
- Single-button simplicity of operation
- RS-232 data output
- Stores up to 99 readings; auto-calculates mean value
- Built-in Printer
SPECIFICATIONS
- CIE 1931 (2 degrees)
- CIE 1964 (10 degrees)
- ISO 2469, 2470, 2471
- ISO 5631.1
- ISO 9416
- Tristimulus values: <1.00
- Chromaticity coordinates: <0.0100
- Xenon lamp provides diffused illumination in 30mm window in 150mm dia integrating sphere
- Illumination observation condition: Illumination d/o according to ISO 2469 is adopted, i.e. integrating sphere (150mm in diameter)diffused illumination on sample with vertical reception.
- Color measurement standard: Tristimulus values, CIE 1964/10°and CIE 1931/2°standard observer.
- Light source for colour measurement: Pulsed xenon lamp to simulate illuminant D65 and C, instantaneous illumination on sample with UV regulator.
- Measurement port: 30mm in diameter.
- Precision of displayed value: Tristimulus values 0.01, chromaticity values 0.0001, remainder 0.01.
- Stability of measurement value: For 25 times continuous measurements floating δ=0.10.
Continuous work for 30 min. floating δ=0.20. - Accuracy: Tristimulus values =1.00, Chromaticity coordinates =0.0100, R457 value =0.80
- Repeatability :δx, δy =0.0100.
- Data outputs: Displays symbol and values through VFD screen and prints out colorimetric parameters on a micro-printer.
- Preset number of operation: Allows user to preset 0-30 sample measurements and calculate their arithmetic mean automatically.
- Preheating of instrument: 10 minutes.
STANDARDS
Paper, board and pulps
| ISO 2469:1994 | Paper, board and pulps – Measurement of diffuse reflectance factor |
| ISO 2470:1999 | Paper, board and pulps –Measurement of diffuse blue reflectance factor (ISO brightness) |
| ISO 2471:1998 | Paper and board –Determination of opacity (paper backing) – Diffuse reflectance method. |
| ISO 5631:2000 | Paper and board –Determination of colour (C/2 degrees) – Diffuse reflectance method. |
| ISO 9416:1998 | Paper –Determination of light scattering and absorption coefficients (using Kubelka - Munk theory). |
| ISO 11475:1999 | Paper and board – Determination of CIE whiteness, D65/10 degrees (outdoor daylight). |
| ISO 11476:2000 | Paper and board – Determination of CIE whiteness, C/2 degrees (indoor illumination conditions). |
| TAPPI T567pm-97 | Effective Residual Ink Content (ERIC) |
Paints and varnishes
| ISO 7724-1:1984 | Paints and varnishes – Colorimetry – Part 1: Principles. |
| ISO 7724-2:1984 | Paints and varnishes – Colorimetry – Part 2: Colour measurement. |
| ISO 7724-3:1984 | Paints and varnishes – Colorimetry – Part 3: Calculation of colour |
Textiles
| ISO 105-A04:1989 | Textiles – Tests for colour fastness – Part A04: Method for the instrumental assessment of the degree of staining of adjacent fabrics. |
| ISO 105-A05:1996 | Textiles – Tests for colour fastness – Part A05: Instrumental assessment of change of colour for determination of grey scale rating. |
| ISO 105-A06:1995 | Textiles – Tests for colour fastness – Part A06: Instrumental determination of 1/1 standard depth of colour. |
| ISO 105-J01: 1997 | Textiles – Tests for colour fastness – Part J01: General principles for measurement of surface colour. |
| ISO 105-J02:1997 | Textiles – Tests for colour fastness – Part J02: Instrumental assessment of relative whiteness. |
INSTRUMENT SIZE
| Depth: | 584 mm (23 in.) | ||
| Height: | 483 mm (19 in.) | ||
| Width: | 279 mm (11 in.) | ||
| Weight | 32 kg (70 lb) |
CONNECTIONS
Electrical: Specify voltage requirements when ordering
ORDERING INFORMATION
Catalog Number 68-50
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For additional information on TMI Products and Services, or to learn how Testing Machines can help your company profit through testing, please call us at 1-800-678-3221, or e-mail info@testingmachines.com.
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