Transparent Liquid Colour Measurement

The color of transparent liquids is critical as a change can indicate contamination or impurities in the raw material, process variations caused by heating and oxidation, or degradation of products exposed to weathering over time. Visual tests have been established by comparing the sample to a known standard. Today, objective measurements can be done with color spectrophotometers that give reliable data on a consistent basis. Besides degree of yellowness, such spectrophotometers also describe color differences three dimensionally: red/green, yellow/blue and light/dark differences.

LCM IV

ASTM D 156, ASTM D1045, ASTM D1209, ASTM D1544, ASTM D 1500, ISO 4630, ISO 6271, ISO 2049, DIN 6162

The LCM IV is a reliable color instrument which replaces conventional visual color evaluation with an objective measurement. It is ideal for routine production control of clear, transparent liquids like resins, adhesives and solvents.

Features:

• Large 7” touch-screen display with intuitive user guidance for simple operation
• Automatic cuvette detection – avoids faulty data measurement
• Works with 10 and 50 mm rectangle as well as 11 mm round cuvettes for optimum precision
• Easy to exchange rectangular cell compartment
• Gardner, Hazen (APHA/PtCo), Iodine, Saybolt and Mineral oil scales come standard with instrument
• Reference beam design to maximize the accuracy and precision
• Front USB interface for PC or printer connection
• Easy data transfer into existing networks through integrated Ethernet (LAN) interface

Comes complete with:

• Instrument with dust cover
• External power supply
• Adapter for 10 mm rectangle cuvettes
• addista® – color standards
• Disposable plastic cuvettes (10x50 mm) – pack of 10
• Disposable glass cuvettes (11mm) – pack of 10
• Operating manual

Technical Specifications

• Type: Single-beam photometer with reference beam path
• Spectral Range: 380 to 720 nm, 10 nm resolution
• Repeatability: ± 2 Hazen, ± 0.1 Gardner
• Reproducibility: ± 0.3 Iodine, ± 5 Hazen, ± 0.3 Gardner
• Light Source: Tungsten Halogen Lamp
• Illuminant/Observer: C/2°
• Indices: Hazen / APHA (0 to 1000), Gardner (0 to 18), Iodine (0 to
• 120), Saybolt (-16 to 30), Mineral Oil (ASTM D 1500) 0 to 8
• Memory: 400 color measurements
• Data Export: .csv file to USB memory stick or Ethernet
• Interface: 2x USB Type A, 2x USB Type B, 1x Ethernet (LAN)
• Operating Temperature: 10 - 40 °C (50 - 104 °F)
• Humidity: up to 80%, 35 °C (95 °F); non condensing
• Dimensions: 151 x 350 x 250 mm (5.9 x 13.7 x 9.8 in.)
• Weight: 4.2 kg (9.25 lbs)
• Voltage: 100-240 V, 50 / 60 Hz

LCS IV

ASTM D 156, ASTM D 848, ASTM D1045, ASTM D1209, ASTM D1544, ASTM D 1925, ASTM D 1500, ASTM D 5368, ASTM E 308, AOCS Method Cc 13e, AOCS Method BS 684 ly/Lr, ISO 4630, ISO 6271,ISO 2049, ISO 27608, DIN 6162, DIN 5033, DIN 6174

The LCS IV is a highly precise color instrument which spectrally measures all color shades of optically clear, transparent liquids using the dual beam principle. Besides the conventional visual color numbers (Gardner, Iodine, Hazen (APHA) etc.) the LCS IV can also measure opponent color systems such as CIELab, CIELCh and Hunter Lab under the conditions of illuminant A, C, D65 and 2°/10° Standard Observer.

Features:

• Stand alone unit with built-in 7” touch-screen display allows use without the need of a PC
• All-important color scales and indices included
• Automatic cuvette detection – avoids faulty data measurement
• Automatic zero and calibration memory for all type of cuvettes – ensures use of correct calibration data
• Designed for the use of disposable plastic cuvettes, high precision glass cuvettes or 11 mm test tubes
• Easy to exchange rectangular cell compartment
• High measurement reliability is guaranteed by comprehensive verification kits
• User profile memory with password protection for individual configurations – including GLP documentation
• Open sample compartment for ease of operation
• Front USB interface for PC or printer connection
• Easy data transfer into existing networks through integrated
• Ethernet (LAN) interface

Comes complete with:

• Instrument with dust cover
• External power supply
• Adapter for 10 mm rectangle cuvettes
• addista® – color standards
• Disposable plastic cuvettes (10x50 mm) – pack of 10
• Disposable glass cuvettes (11mm) – pack of 10
• Operating manual

Technical Specifications

• Geometry: 0° / 180° rectilinear
• Spectral Range (Colorimetric): 380 to 720 nm, 10 nm resolution
• Spectral Range (Photometric): 320 to 1,100 nm, 1 nm resolution
• Repeatability: 0.1 ΔE, 1 σ
• Reproducibility: ± 0.2% transmission
• Light Source: Tungsten Halogen Lamp
• Illuminant/Observer: A, C, D65 / 2°, 10°
• Color Scale: CIELab; CIELCh; Hunter Lab
• Color Difference: ΔE and component differences, text descriptor, tolerances
• Indices: Gardner; Hazen/APHA; Iodine; Saybolt; Lovibond; Hess-Ives; US, European
• Pharmacopoeia; Mineral oil; Yellowness; Acid Wash Test; Chlorophyll A; ADMI
• Spectral: % transmission; % absorbance, concentration
• Memory: 3000 color measurements, 100 color references, 1000 photometric readings
• Data Export: .csv file to USB memory stick or Ethernet
• Interface: 2x USB-A; 2x USB-B; 1x Ethernet (LAN)
• Operating Temperature: 10 to 40 °C (50 to 104 °F)
• Humidity: up to 85%, 35 °C (95 °F);non condensing
• Dimensions: 151 x 350 x 250 mm (5.9 x 13.7 x 9.8 in)
• Weight: 4.2 kg (9.25 lbs.)
• Voltage: 100-240 V, 50 / 60 Hz

Liquid Color Standards

ASTM D1544, AOCS Method Tdla-64T, ISO 4630

The Gardner Liquid Color Standard Comparator provides the entire Gardner Color Scale, against which a liquid sample can be visually compared.

Features:

• Rugged design for use in the laboratory and production
• Quick and easy color quality control of liquids
• Attractive price – color evaluation of liquids becomes affordable to everybody
• Shelf-life is 5 years

The sealed tubes are filled with Cobalt Chloride Platinate solutions of varying concentrations, which correspond to known Scale yellowness value numbers 1 – 18. The solutions are standardized at 25 °C (77 °F), but visual evaluations made between 20 °C (68 °F) and 30 °C (86 °F) are substantially correct.

Two models are available: with or without illumination.

Technical Specifications:

Delta Color Comparator

ASTM D1544, AOCS Method TdIa-64T, IS 4630

The Gardner Delta Color Comparator uses precision-polished optical-glass filters as reference standards. Two different models are available: with or without illumination.

Features:

• Rugged design allows the color comparator to be used at any location
• Easy operation allows anyone to determine Gardner Color Numbers
• Optional illuminator allows back-light color to improve viewing Conditions

The comparator is an arrangement of two wheels in which nine color filters are imbedded in each wheel. The glass filters range in color from water white through deep amber. A tube of the sample liquid is placed between the two filter wheels. The user then rotates the color wheels until the filter glass closest in color to the liquid is in place. That filter notation then becomes the color description for the liquid.

Technical Specifications: