Spectrophotometer Datacolor 850

Manufacturer and type

Datacolor Switzerland, model Datacolor 850

Location

Department of Textile Chemistry and Ecology

   
Contact person:

Prof. Sandra Bischof, PhD
sbischof@ttf.unizg.hr

 
Application:

Measurement of spectral values of coloured and uncoloured surfaces and calculation of values of spectral characteristics (remission) (whiteness; for coloured surfaces, parameters: lightness (L *), chrome (C *) and hue (H *) of colours and total colour differences (DE)) according to CIELAB and/or CMC systems for calculating the total colour difference.The Datacolor 850 includes an option to measure the transmission properties of transparent and translucent samples. It can measure the transmittance of transparent solid and liquid samples, as well as the “total” and “diffuse” transmittance of translucent samples.

THE STANDARDS COVERED BY THIS DEVICE ARE:

• ISO 105-B05:1993, Textiles — Tests for colour fasteners — Part B05: Detection and assessment of photochromism.
• HRN EN ISO 105-J01:2003:Tekstil -- Ispitivanje postojanosti obojenja -- Dio J01: Opća načela mjerenja obojene površine (ISO 105-J01:1997; EN ISO 105-J01:1999); Textiles -- Tests for colour fastness -- Part J01: General principles for measurement of surface colour (ISO 105-J01:1997; EN ISO 105-J01:1999)
• ASTM Standards on Colour and Appearance Measurement, Fifth Edition 1996, ASTM, Conshohocken, PA3).
• ASTM E1345 Standard Practice for Reducing the Effect of Variability of Color Measurement by Use of Multiple Measurements.
• ASTM E-308-96, Computing the Colours of Objects by using the CIE System.
• Tekstil – Ispitivanje postojanosti obojenja – Dio J01: Opća načela mjerenja obojene površine (ISO 105-J01:1997; EN ISO 105-J01:1999)
• Tekstil – Ispitivanje postojanosti obojenja – Dio J02: Instrumentalno određivanje relativne bjeline (ISO 105-J02:1997, uključujući Cor 1:1998; EN ISO 105-J02:1999)
• Tekstil – Ispitivanje postojanosti obojenja – Dio J03: Izračunavanje razlika obojenja (ISO 105-J03:2009; EN ISO 105-J03:2009)
• ISO 139:1973, Textiles — Standard atmospheres for conditioning and testing
• SAE J1545:1986, Instrumental Color Difference Measurement for Exterior Finishes, Textiles and Colored Trim.

Technical characteristics:

• Input voltage: 100/240 VAC
• Frequency: 50/60 Hz
• Power: 80 VA
• Operating environment: T = 5 - 40 ° C, RH 20% – 85%
• Illumination source: Pulsed xenon filtered to approximate D65
• Wavelength range: 360 nm - 700 nm
• Wavelength resolution: 2 nm
• Reporting interval: 10 nm
• Photometric range: 0 - 200%
• Lens: 4 auto zoom positions
• Calibration equipment: black, white and green standard and aperture
• Apertures: three standard; two electives:
• LAV (illuminated 30 mm, measured 26 mm)
• SAV (illuminated 9 mm, measured 5 mm)
• USAV (illuminated 6.5 mm, measured 2.5 mm)