CATEGORIES

    Platinum-Cobalt Color Scale

    Overview Products Knowledge Standards Terms
    The Platinum-Cobalt Colorimetric Card establishes a visual color comparison standard through a series of platinum-cobalt standard solution color scales, used for determining the color of water or transparent liquids. During operation, the sample is compared side by side with the standard color scales to determine the closest color number, enabling semi-quantitative analysis. It is suitable for rapid color detection of transparent liquids such as drinking water and industrial water.
    Selection
    When selecting, ensure the colorimetric card complies with the current national standard number and its color gradient covers the common detection range. Check that the card shows no fading or damage and that the color indicator boundaries are clear. Choose an appropriate measurement range based on the concentration of daily testing samples, taking into account the impact of ambient lighting conditions on visual interpretation.
    type

    Terms

    Platinum-Cobalt Colorimeter

    Standards

    Active GB/T 22295-2008
    Standard test method for color of transparent liquids(Gardner Color Scale)
    Active GB/T 6324.6-2014
    Test method of organic chemical products—Part 6: Determination of color for liquids—Tristimulus colorimetry
    Active GB/T 32387-2015
    Color assessment booth
    Active GB/T 5211.20-1999
    Comparison of the colour，in full-shade systems，of white，black and coloured pigments--Colorimetric method
    Active GB/T 1664-1995
    Plasticizers--Determination of colour
    Active GB/T 6324.7-2014
    Test method of organic chemical products—Part 7: Determination of molten color
    Active GB/T 39560.702-2021
    Determination of certain substances in electrical and electronic products—Part 7-2:Hexavalent chrome—Determination of hexavalent chrome[Cr(VI)]in polymers and electronics by the colormetric method
    Active GB/T 11942-2022
    Test method of chroma for colour building materials
    Active GB/T 9761-2008
    Paints and varnishes - Visual comparison of the colour of paints

    Instruments

    JINGQI SD-100P Precision ColoriMeter Platinum Cobalt Colorimetry High Accuracy Water Quality Determination
    JINGQI SD-100P Precision ColoriMeter Platinum Cobalt Colorimetry High Accuracy Water Quality Determination

    Colorimetry with platinum and cobalt, measurement range 0.00~ 100PCU, resolution 0.01PCU, imported high luminance Illuminant life of 100,000 hours, Optical inspection stability, support data storage and printing functions.

    $ 637.00
    LEICI DGB-421 Portable water quality ColoriMeter platinum cobalt standard chroma method
    LEICI DGB-421 Portable water quality ColoriMeter platinum cobalt standard chroma method

    Measurement range 0-50 degrees, Indication Error no more than +/- 5%, Zero calibrated and fullness calibrated, direct reading without Reagent, IP65 Protection Rating and battery powered.

    $ 462.00
    JINGKELIAN QSG Iron and Cobalt TintoMeter varnish Color Tester GB/T1722-92 Standard
    JINGKELIAN QSG Iron and Cobalt TintoMeter varnish Color Tester GB/T1722-92 Standard

    Equipped with 18 standard color scale solution, prepared according to GB/T1722-92 standard, using an inner diaMeter of 10.75mm Glass testtube, Color comparison is carried out in the Color Assessment Cabinet to ensure accurate measurement results.

    $ 136.00
    YUE FENG WSL-2 Comparison ColoriMeter LOVIBOND Color Scale, Partial Field Color Matching
    YUE FENG WSL-2 Comparison ColoriMeter LOVIBOND Color Scale, Partial Field Color Matching

    In line with the LOVIBOND color scale standard, the sub-field of view Color matching Sensitivity is high, the Measurement range is red 0.1-79, yellow 0.1-79 LOVIBOND units, and the structure is simple and easy to operate.

    $ 599.00
    HANNA HI727 PhotoMeter, Platinum Cobalt chroma TintoMeter LED Illuminant CAL CheckTM
    HANNA HI727 PhotoMeter, Platinum Cobalt chroma TintoMeter LED Illuminant CAL CheckTM

    Using LED Illuminant to provide stable 470nm wavelength, Measurement range 0-500PCU, accuracy +/- 10PCU, support NIST traceability standard calibrated to ensure the accuracy of water quality chroma detection.

    $ 215.00
    JINGQI SD-100 Precision ColoriMeter Platinum Cobalt Colorimetry 0.00~ 100PCU
    JINGQI SD-100 Precision ColoriMeter Platinum Cobalt Colorimetry 0.00~ 100PCU

    Imported long-life Illuminant and narrowband filter system, Optical inspection stability, absorption value drift less than 0.002A within 20 minutes, repeability ≤ 3%, support users to calibrate Linear dispersion.

    $ 499.00
    CHNSPEC DS-812N Benchtop Liquid Colorimeter Platinum Cobalt Index, Gardner Cyber Colorimeter
    CHNSPEC DS-812N Benchtop Liquid Colorimeter Platinum Cobalt Index, Gardner Cyber Colorimeter

    Supports more than 30 chroma indicators, Measurement accuracy ≤ E * ab ≤ 0.01, single measurement only takes 1.5 seconds, minimum liquid addition is as low as 1ml, equipped with thermostatic sample tank and 7 inch Touchscreen.

    $ 4075.00
    JINGQI SD-500 Precision ColoriMeter Platinum Cobalt Colorimetry 0-500PCU measurement range
    JINGQI SD-500 Precision ColoriMeter Platinum Cobalt Colorimetry 0-500PCU measurement range

    Imported long-life Illuminant and narrowband filter system, Optical inspection stability, 20 minutes drift less than 0.002A, support users to calibrate Linear dispersion, suitable for a variety of water quality testing.

    $ 567.00
    TONGAO TR-708H chroma Meter, water quality ColoriMeter Platinum Cobalt Colorimetry
    TONGAO TR-708H chroma Meter, water quality ColoriMeter Platinum Cobalt Colorimetry

    Measurement range 0-500mg/L, no reagents and digestion, 1-2 minutes rapid determination, built-in cold light source life of 100,000 hours, support a variety of data transmission methods.

    $ 816.00
    YONGLIDA QSG Iron and Cobalt TintoMeter Color Tester GB/T1722 Standard
    YONGLIDA QSG Iron and Cobalt TintoMeter Color Tester GB/T1722 Standard

    Equipped with 18 standard color level solutions, in line with GB/T1722 standards, using visual ratio method, suitable for Color Determination, Test Ambient Temperature 23 +/- 2 ℃, to ensure accurate and reliable results.

    $ 151.00
    JINGQI SD-500P Precision ColoriMeter Platinum Cobalt Colorimetry High Accuracy Water Quality Determination
    JINGQI SD-500P Precision ColoriMeter Platinum Cobalt Colorimetry High Accuracy Water Quality Determination

    Imported long-life Illuminant and narrowband filter system, Optical inspection stability, 20 minutes drift less than 0.002A; can store 10 Linear dispersion and 500 data, support USB interface upload, anti-corrosion case design.

    $ 704.00
    FANGRUI BZY200 surface TensioMeter platinum plate platinum ring method 4.3 inch Touchscreen
    FANGRUI BZY200 surface TensioMeter platinum plate platinum ring method 4.3 inch Touchscreen

    Using electromagnetic force equilibrating Sensor, accuracy of 0.01mN/m, support platinum plate and platinum ring method, automatic measurement without calculation, real-time display Linear dispersion and save the results.

    $ 2029.00
    FANGRUI BZY100 surface TensioMeter platinum plate method platinum ring method 4.3 inch Touchscreen
    FANGRUI BZY100 surface TensioMeter platinum plate method platinum ring method 4.3 inch Touchscreen

    Measurement accuracy of 0.1mN/m using electromagnetic force equilibrating Sensor, support platinum plate method and platinum ring method dual method, automatic operation without manual calculation, real-time display Linear dispersion and save data.

    $ 1840.00
    FANGRUI BZY200 surface TensioMeter method Automatic measurement platinum plate platinum ring method
    FANGRUI BZY200 surface TensioMeter method Automatic measurement platinum plate platinum ring method

    Sensor using electromagnetic force equilibrating principle, Sensitivity and high accuracy, support platinum plate method and platinum ring method, automatic measurement without calculation, surface tension Measurement range 0~ 500mN/m, accuracy 0.01mN/m, real-time display Linear dispersion and preservation results.

    $ 1571.00
    CNSHP BZY-1A Automatic surface TensioMeter Platinum plate method Platinum ring method High Accuracy measurement
    CNSHP BZY-1A Automatic surface TensioMeter Platinum plate method Platinum ring method High Accuracy measurement

    Using platinum plate method or platinum ring method for measurement, with 0-600mN/m wide Measurement range and 0.01mN/m high resolution, standard error +/- 0.02mN/m, equipped with large-screen LCD display and real-time Linear dispersion analysis software, support platform slow and fast lift switching.

    $ 5721.00

    Articles

    The necessity of a standard light source box in visual color comparison and color difference assessment of coatings.
    In the production of coatings, accurate color evaluation is crucial. Visual color comparison is easily affected by light, as natural light is unstable, and different lighting conditions can make colors appear different.
    Visual color comparison method using colorimetric tubes to determine the color phase of varnish.
    Colorimetric tube visual colorimetry is a method used to determine the color hue tendency of varnish samples by directly comparing them with a standard color scale using the human eye. During operation, samples and standard liquid columns should be prepared using colorimetric tubes of consistent specifications under standard lighting conditions, and the hue differences should be observed in parallel.
    Operating Specifications for the Determination of Hexavalent Chromium Content in Wastewater Using Colorimetric Titration Apparatus
    This article introduces the standard operating procedure for determining hexavalent chromium content in wastewater using a colorimetric titrator. The method is based on the reaction between hexavalent chromium and diphenylcarbazide under acidic conditions to form a purplish-red complex, with the titration endpoint determined by monitoring changes in absorbance at a wavelength of 540 nanometers.
    Standardized ink color evaluation environment for visual color comparison cabinets
    This article introduces the standardized application of visual color comparison boxes in ink color evaluation. It emphasizes that to ensure the accuracy and consistency of color judgments, the evaluation environment must be strictly controlled.
    Principle and Application of Whiteness Meter in Measuring Coating Whiteness
    A whiteness meter quantifies the whiteness of paint samples by simulating human perception of white, measuring the diffuse reflectance of light—particularly in the blue wavelength range—and converting it into a numerical whiteness value. It employs standardized optical configurations and mathematical models, such as the Ganz formula, to assess the brightness and chromaticity of coatings.
    Determination of Chromaticity Value of Pulp by Spectrophotometry
    This article introduces the method for determining pulp chromaticity using spectrophotometry. It first explains the importance of chromaticity for pulp quality, then details the basic principles of spectrophotometry, which quantifies color by measuring the reflection of light from the pulp, typically expressed using the CIELAB color system.
    Application of Colorimeter and Color Matching Box in Pigment Color Inspection
    A colorimeter and a light booth are two primary tools in pigment color inspection. The colorimeter measures color through photoelectric principles, while the light booth provides a standardized light source environment for visual evaluation of color effects, metamerism, and other phenomena.
    Comparative Study of Lovibond Colorimeter and Iron-Cobalt Colorimeter
    The Lovibond colorimeter and the iron-cobalt colorimeter are two widely used visual color measurement instruments in the industrial field. Both are designed based on the principle of standard color comparison, yet they exhibit significant differences in their specific implementation methods and application standards.
    Application of Gardner Colorimeter in the Determination of Oil and Fat Color
    The Lovibond tintometer determines the color of oils and fats by visually comparing them with standard glass color standards, with results expressed as numerical codes. During operation, clarified oil samples are poured into the colorimetric cell and compared with color chips under a stable light source.
    A spectrophotometer uses digital language to describe colors, making color differences impossible to hide.
    A spectrophotometer measures the color of an object through spectral analysis, converting reflected light data into spectral curves. It then calculates chromaticity parameters such as L*a*b* based on international standards, achieving a digital representation of color.