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        HG/T 3862-2006 "Test Method for Yellow Index of Plastics" specifies the method for yellow index testing of colorless transparent, translucent and nearly white opaque plastics. This standard applies to plate, sheet, film and powder, granular specimens, but not to plastics containing fluorescent substances. The yellow index YI is characterized by a reference value of oxidation mg under the International Commission on Illumination (CIE) standard C Light source and can be used to evaluate the mass and aging of plastics. The yellow index of transmission of transparent plastics is affected by thickness and can only be compared at the same thickness. A positive value of yellow index measured by this method indicates that the material is yellow, and a negative value indicates that it is blue.

        This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
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        3NH DS360 portable Colorimeter MAV: φ 8mm/φ 10mm, SAV: φ 4mm/φ 5mm
        $4112.00 SE
        3NH DS360 portable Colorimeter MAV: φ 8mm/φ 10mm, SAV: φ 4mm/φ 5mm
        Dual diameter: MAV: φ 8mm/φ 10mm, SAV: φ 4mm/φ 5mmChromatic value: MAV/SCI, Delta E * ab within 0.05 (after preheating correction, the average value of 30 whiteboard measurements at intervals of 5s)MAV/SCI, Delta E * ab within 0.3 (BCRA series ⅱ 12 color plate measurement average)
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        3NH PS2070 handheld Colorimeter φ 4mm/φ 8mm flat tip four calibers
        $1450.00 SE
        3NH PS2070 handheld Colorimeter φ 4mm/φ 8mm flat tip four calibers
        Four caliber: MAV: Should 8mm/Should 10mm (platform + tip nozzle measurement diameter); SAV: Should 4mm/Should 5mm (platform + tip nozzle measurement diameter)Chromatic value: MAV/SCI, standard deviation Delta E * ab within 0.02 (after preheating correction, the average value of 30 whiteboard measurements at intervals of 5s) Spectroscopic reflectance: MAV/SCI, standard deviation within 0.08% (400~700nm: within 0.18%)ΔE*ab<0.2(MAV/SCI)
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        CHNSPEC CS-421 Beverage Colorimeter 4mm caliber with liquid measurement fixture
        $2076.00 SE
        CHNSPEC CS-421 Beverage Colorimeter 4mm caliber with liquid measurement fixture
        Φ4mmΔE*ab≤0.4
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        3NH PS2060 handheld Colorimeter φ 4mm/φ 8mm/: 1x3mm three caliber
        $1293.00 SE
        3NH PS2060 handheld Colorimeter φ 4mm/φ 8mm/: 1x3mm three caliber
        Three caliber: MAV: Should 8mm/Should 10mm (platform measurement diameter); SAV: Should 4mm/Should 5mm (platform measurement diameter); SSAV: 1x3mm (pointed nozzle measurement diameter);Chromatic value: MAV/SCI, standard deviation Delta E * ab within 0.03 (after preheating correction, the average value of 30 whiteboard measurements at intervals of 5s) Spectroscopic reflectance: MAV/SCI, standard deviation within 0.08% (400~700nm: within 0.18%)ΔE*ab<0.3(MAV/SCI)
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        3NH TS8450 Portable reflective film Colorimeter φ 4mm caliber
        3NH TS8450 Portable reflective film Colorimeter φ 4mm caliber
        F4mm / F5mmChromatic value: MAV/SCI, ΔE * ab within 0.02 (after preheating correction, the average value of 30 whiteboard measurements at intervals of 5s)ΔE * from < 0.15 (MAV / SCI)
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        IWAVE SA23 Colorimeter φ 4mm Single Caliber, Entry Edition
        $2546.00 SE
        IWAVE SA23 Colorimeter φ 4mm Single Caliber, Entry Edition
        Φ4mmDelta E * ab ≤ 0.4 (the average measurement value of 0026 12 color blocks)
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        Peiseyun PSY02 color scheme cloud color difference treasure, premium version
        $303.00 SE
        Peiseyun PSY02 color scheme cloud color difference treasure, premium version
        F8mmDE * 00 < 0.2
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        Peiseyun PSY01 color scheme cloud color difference treasure, enhanced version
        $225.00 SE
        Peiseyun PSY01 color scheme cloud color difference treasure, enhanced version
        F8mmDE * 00 < 0.2
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        IWAVE SY3020 Colorimeter, 4mm Measurement
        $695.00 SE
        IWAVE SY3020 Colorimeter, 4mm Measurement
        Φ4mmDelta E * ab ≤ 0.4 (the average measurement value of 0026 12 color blocks)
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        Kutai MS3008 Automotive Colorimeter 8 Measurement angles
        Kutai MS3008 Automotive Colorimeter 8 Measurement angles
        F12mm0.18ΔE * 00 (BCRA series Ⅱ 12 color plate measurement average)
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        3NH DS360 portable Colorimeter φ 8mm/φ 10mm
        $2891.00 SE
        3NH DS360 portable Colorimeter φ 8mm/φ 10mm
        Single diameter: phi 8mm/phi 10mmChromatic value: MAV/SCI, Delta E * ab within 0.06 (after preheating correction, the average value of 30 whiteboard measurements at intervals of 5s)MAV/SCI, Delta E * ab within 0.3 (BCRA series ⅱ 12 color plate measurement average)
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        IWAVE SA26 Colorimeter φ 8mm/φ 4mm Dual Caliber, Professional Edition
        $4739.00 SE
        IWAVE SA26 Colorimeter φ 8mm/φ 4mm Dual Caliber, Professional Edition
        Dual diameter φ 8mm/φ 4mm can be switchedDelta E * ab ≤ 0.4 (the average measurement value of 0026 12 color blocks)
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        IWAVE SY3020 Colorimeter, Measurement
        $695.00 SE
        IWAVE SY3020 Colorimeter, Measurement
        Φ8mmDelta E * ab ≤ 0.4 (the average measurement value of 0026 12 color blocks)
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        IWAVE WS4500 Colorimeter
        $2421.00 SE
        IWAVE WS4500 Colorimeter
        Light spot 8mm (diameter φ 11mm)/light spot 4mm (diameter φ 6mm) optionalLight spot 8mm (diameter φ 11mm)/light spot 4mm (diameter φ 6mm) optionalDelta E < 0.3 (RAL12 color block)
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