The eggshell color tester can measure whiteness, yellowness, etc. It can be intelligently and automatically calibrated

Brand Name:Shengtai Instrument
Certification:ISO9001
Model Number:ST-17
Minimum Order Quantity:1 Sets
Delivery Time:7-15work-days
Payment Terms:T/T
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Location: Jinan Shandong China
Address: Times Headquarters Base, Tianqiao District, Jinan City
Supplier`s last login times: within 13 hours
Product Details Company Profile
Product Details

The ST-17 eggshell color tester adopts an automatic calibration method, with over 30 measurement parameters and 26 standard light sources; The eggshell color tester can be automatically calibrated and automatically removed for gloss measurement. It can also measure 30 measurement indicators such as whiteness and yellowness, with good repeatability and can be certified by the Institute of Metrology.


Eggshell colors include white, light brown, brown, dark brown, and cyan. Some people prefer red shell eggs, while others prefer green shell eggs, believing that they have higher nutritional value. The color of the egg shell comes from the final process of egg processing in the hen's reproductive tract - the pigment secreted by the uterine epithelium, such as egg porphyrin providing brown, and biliverdin providing green. The exact pigment secreted first depends on the genotype of the hen. Secondly, it depends on the acquired factors such as the diet and health of the hen. The age and health status of hens can also have a certain impact on egg shell color.


Technical parameters of eggshell color tester

Measurement structureD/8-SCI+SCE, (Diffuse illumination, receiving in 8 ° direction), including specular reflection light removal specular reflection light)
Measurement repeatability/stabilityChromaticity value
Standard deviation valueΔE*ab≤ 0.04
average value:dE*ab≤ 0.05
Maximum:dE*ab≤ 0.08
(Measure the whiteboard 30 times at 5-second intervals after whiteboard calibration)
Inter station differenceΔE*ab≤0.4
Display accuracy0.01
Measuring/lighting apertureΦ4mm
Measurement indicatorsSpectral reflectance,CIE-Lab,CIE-LCh,HunterLab,CIE-Luv,XYZ,Yxy,RGB,
chromatic aberration (ΔE*ab,ΔE*cmc,ΔE*94,ΔE*00), whiteness (ASTM E313-00,ASTM E313-73,CIE/ISO,AATCC,Hunter,TaubeBergerStensby), Yellowness (ASTM D1925,ASTM E313-00,ASTM E313-73), Blackness(My,dM)
Light source conditionsA,B,C,D50,D55,D65,D75,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,
CWF,U30,U35,DLF,NBF,TL83,TL84
Lighting sourceLED
Measurement and observation methodvisual
calibrationIntelligent automatic calibration
Software SupportWindows
Accuracy AssuranceEnsure that the first level measurement is qualified
Field of view angle2°,10°
Integrating sphere diameter40mm
Compliance with standardsCompliance with standardsCIE No.15,GB/T 3978,GB 2893,GB/T 18833,ISO7724-1,ASTM E1164,DIN5033 Teil7
Spectroscopic methodIntegrated optics
sensorCMOS a sensor
Wavelength interval10nm
Wavelength range400-700nm
Reflectivity measurement range0-200%
Reflectivity resolution0.01%
Measurement timeAbout 1 second
joggleUSB
screenIPS Full color display, 2.4 inches
Battery capacity8000 consecutive measurements per charge, 3.7V/3000mAh
Light source lifetime1 million times in 10 years
languageSimplified Chinese, English
storage100 standard samples

Product Packing List


S/NNameQuantityUnitremarks
1Host1Set
2Whiteboard holder1piece
3Power cord1piece
4Fuse tube1pieceIn the safety seat 10A
5instruction manual1Copy
6Certificate of Conformity Warranty Card1copy

Company Introduction

Shandong Shengtai Instruments Co., Ltd. is specialized in the research and production of experimental testing instruments and industrial testing instruments. It is a professional instrument company integrating instrument research and development, manufacturing, sales and service. Its products are widely used in food, flour, grain and oil, Feed, electricity, petrochemical, industrial oil, aerospace, coal quality and other industries.

For more than 10 years, Shengtai has always been adhering to the "first-class service, customer first" as the purpose, "reasonable price, honesty and trustworthiness" as the business policy. Adhere to technical innovation, with rich knowledge of the technical team and experienced, thoughtful after-sales service team.

Shengtai instrument as one of the most large-scale and competitive enterprises in the industry, with the strength of technology research and development, professional technical knowledge and innovative design concept, in the model improvement, Significant technical breakthrough has been achieved in the development of function expansion and intelligent control system.

OUR service

After-sales service commitment, our company to sell the product after-sales service commitment: warranty period of one year, long-term technical support outside the warranty period. During the warranty period, the seller shall bear the cost of the replacement of the equipment, the freight and maintenance of the instrument; outside the warranty period, the seller shall waive the maintenance fee and charge only the cost of the basic materials and freight charges when the instrument is malfunctioning and the seller shall not charge the maintenance fee during the warranty period.

Packaging & Delivery

1. Out packing: Standard export wooden case.
2. Inner packing: With careful stretch film wrap product, hard wood board+ strong bandage to fix corners.
3. Checking teams: Specialized staff to inspect and classified your goods.

4.Port Any port of China

Lead Time :

Quantity(Sets)1 - 12 - 56 - 10>10
Est. Time(days)62030To be negotiated

Contact us

Shandong Shengtai Instrument Co.,ltd

ADD:6-8 time base NO.15 lanxiang road tianqiao Area Jinan city

TEL:+86 0531-85919987 85929987

FAX:+86 0531-85957987

Whatsapp/facebook:+86 13370527859

QQ:3206156217

Email:3206156217@qq.com

Web:www.labtool.net/en


China The eggshell color tester can measure whiteness, yellowness, etc. It can be intelligently and automatically calibrated supplier

The eggshell color tester can measure whiteness, yellowness, etc. It can be intelligently and automatically calibrated

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