Wireless Communication
EU RED Network Security Standard EN 18031
Wireless and communication detection
Mobile communication product certification
Bluetooth BQB Product Certification
FM/AM Product Certification
WiFi Product Certification
Wireless charging product certification
Interphone product certification
Base station certification
SAR testing
Receiver Product Certification
5G NR Product Certification
UWB Product Certification
Internet of Things authentication
Electromagnetic compatibility
Automotive Electronics EMC Testing
EMC rectification
EMC
Automotive Electronics
Electrical performance testing
EMS testing - radiation anti-interference testing system (including radar waves)
EMS Testing - Electrostatic Discharge
EMS Test - Transient Conducted Immunity Test
EMS Testing - Portable Transmitter Immunity
EMS Test - High Current Injection (BCI) Test
EMS test - low-frequency magnetic field anti-interference test
EMI Testing - Transient Conducted Emissions Testing System
EMI testing - low-frequency magnetic field emission
EMI Test - Radiation Emission Test
EMI Test - Conducted Emissions Test
Automotive Electronic Testing
Automotive Parts Inspection
Automotive ELV&VOC
Reliability testing
Temperature shock test
Vibration testing
Instrument panel/instrument panel three comprehensive vibration test
Comprehensive vibration test of door inner panel III
Sunvisor Three Comprehensive Vibration Test
Spoiler Three Comprehensive Vibration Test
Three comprehensive vibration tests of car front and rear bumpers
Three comprehensive vibration tests for lamp housing/lampshade
Comprehensive vibration test of outer circumference three
Automotive metal material testing
Performance testing of automotive lighting fixtures
Rapid temperature change test
Vibration
Common issues with vibration testing
Common issues with fatigue testing
Common issues with high and low temperature testing
Conducted Interference (CE) - Suzhou Lixun Standard
Electromagnetic Radiation Tolerance Test (RS) - Suzhou LCS Standard
Electrical Fast Pulse Withstand Test (EFT) - Suzhou LCS Standard
Voltage flicker test - Suzhou LCS standard
Electronic appliances
Household appliance product testing
Electrical accessory product testing
Household appliance testing
Chemical Testing
Introduction to PFAS Testing
MOSH/MOAH Mineral Oil Testing Service
MOSH/MOAH Mineral Oil Testing and Certification Report Service
Consumer Product Testing Services - WEEE Chapter
Ecological textile testing
Leather Footwear Inspection
Food contact material testing
Testing of toys and baby products
Hazardous substance testing
Electronic Cigarette Testing
Electronic cigarette detection
Reliability testing
Other tests - pencil hardness test
Mechanical testing - Packaging compression test
Climate environment testing - Xenon lamp aging test
Battery Testing
Power storage battery testing and certification
Consumer Electronics Battery Testing and Certification
power battery
Light electric vehicle batteries
Energy storage battery
Portable battery
Battery testing
battery test
Lamp Inspection
Inspection of ship lighting fixtures
COI Index Test for Medical Indoor Lighting
Lamp safety inspection
Luminaire energy efficiency testing
EMC testing of lighting fixtures
Integral Ball Laboratory
Photobiology Experiment
Light distribution test
Lamp aging test
Lamp IP waterproof
Lamp performance testing
Lamp reliability testing
Children's toy testing
Testing standards for toy products
China Certification
China's "national promotion" RoHS certification
China Energy Efficiency Label Certification
China Energy Conservation Certification
China CQC Certification
Tmall JD Quality Inspection Report
China SRRC Certification
Taiwan BSMI certification
Taiwan NCC certification
China CCC Compulsory Certification
Asia Certification
Vietnam certification
KC certification
KUCAS Certification in Kuwait
Singapore PSB certification
Iraq COC Certification
IMDA certification
VCCI Certification in Japan
JATE certification in Japan
PSE certification
BIS certification
Japanese TELEC certification
European Certification
RoHS certification
GOST certification in Russia
Russian EAC certification
Northern Ireland UKNI logo
Electrical ENEC certification
European D-MARK certification
Türkiye BTK certification
TSE certification in Türkiye
CE certification in Türkiye
RED certification
German TUV-SUD certification
CE-ERP certification
REACH certification
German GS certification
EU E-Mark certification
North American Certification
Ecuador VOC certification
Mexico NOM certification
IRAM certification
CPSC Certification in the United States
CSA certification
ASTM certification
FDA certification
CEC certification
ETL certification
ul certification
IC certification
Energy Star
FCC Certification in the United States
ASTM certification
Middle East Certification
Israel SII certification
Saudi SABER certification
GCC certification for the seven Gulf countries
Iran COI certification
Qatar COC Certification
Iraq COC Certification
Saudi EER Energy Efficiency Certification
Saudi SABER certification
Algeria PCA certification
PVOC certification
Australia Certification
New Zealand IC-F testing
VEET certification
LCP certification
GEMS certification
RCM certification
C-Tick certification
SAA certification
Africa Certification
Gabon COC certification
Algeria COC certification
Ethiopian VOC and COC certification
Mauritius VOC certification
Ghana COC certification
COC certification in Burundi
Zambia COC certification
Botswana COC Certification
Uganda PVOC certification
SABS certification in South Africa
South African LOA certification
Zimbabwe CBCA Certification
Nigeria SONCAP certification
Kenya PVOC certification
African COC certification
Other certifications
WEEE
Bluetooth BQB certification
IECEE registration
MHRA registration in the UK
TRAINING
Management system training
Laboratory technical training
Laboratory Process Consulting
Laboratory decoration construction
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Wireless Communication
Electromagnetic compatibility
Automotive Electronics
Automotive Parts Inspection
Electronic appliances
Chemical Testing
Electronic Cigarette Testing
Reliability testing
Battery Testing
Lamp Inspection
Children's toy testing
China Certification
Asia Certification
European Certification
North American Certification
Middle East Certification
Australia Certification
Africa Certification
Other certifications
TRAINING
Services
返回Testing Services
- EU RED Network Security Standard EN 18031
- Wireless and communication detection
- Mobile communication product certification
- Bluetooth BQB Product Certification
- FM/AM Product Certification
- WiFi Product Certification
- Wireless charging product certification
- Interphone product certification
- Base station certification
- SAR testing
- Receiver Product Certification
- 5G NR Product Certification
- UWB Product Certification
- Internet of Things authentication
- Electrical performance testing
- EMS testing - radiation anti-interference testing system (including radar waves)
- EMS Testing - Electrostatic Discharge
- EMS Test - Transient Conducted Immunity Test
- EMS Testing - Portable Transmitter Immunity
- EMS Test - High Current Injection (BCI) Test
- EMS test - low-frequency magnetic field anti-interference test
- EMI Testing - Transient Conducted Emissions Testing System
- EMI testing - low-frequency magnetic field emission
- EMI Test - Radiation Emission Test
- EMI Test - Conducted Emissions Test
- Automotive Electronic Testing
- Automotive ELV&VOC
- Reliability testing
- Temperature shock test
- Vibration testing
- Temperature shock/cold and hot shock test
- Instrument panel/instrument panel three comprehensive vibration test
- Comprehensive vibration test of door inner panel III
- Sunvisor Three Comprehensive Vibration Test
- Spoiler Three Comprehensive Vibration Test
- Three comprehensive vibration tests of car front and rear bumpers
- Three comprehensive vibration tests for lamp housing/lampshade
- Comprehensive vibration test of outer circumference three
- Automotive metal material testing
- Performance testing of automotive lighting fixtures
- Rapid temperature change test
- Vibration
- Common issues with vibration testing
- Common issues with fatigue testing
- Common issues with high and low temperature testing
- Conducted Interference (CE) - Suzhou Lixun Standard
- Conducted Immunity Test (CS) - Suzhou LCS Standard
- Electromagnetic Radiation Tolerance Test (RS) - Suzhou LCS Standard
- Electrical Fast Pulse Withstand Test (EFT) - Suzhou LCS Standard
- Voltage flicker test - Suzhou LCS standard
- Introduction to PFAS Testing
- MOSH/MOAH Mineral Oil Testing Service
- MOSH/MOAH Mineral Oil Testing and Certification Report Service
- Automotive ELV&VOC
- Consumer Product Testing Services - WEEE Chapter
- Consumer Product Testing Services - CA 65
- Consumer Product Testing Services - SDS Section
- Consumer Product Testing Services - TSCA Section
- Consumer Product Testing Services - CPSIA Section
- Consumer Product Testing Services - POPs Section
- Consumer Product Testing Services - REACH Restricted Substances Section
- Consumer Product Testing Services - REACH SVHC Section
- Consumer Product Testing Services - RoHS Chapter
- Ecological textile testing
- Leather Footwear Inspection
- Food contact material testing
- Testing of toys and baby products
- Hazardous substance testing
- Other tests - pencil hardness test
- Other tests - Alcohol abrasion test
- Other tests -100 grid test
- Other tests - Paper tape wear test
- Other inspections - bending tests
- Other tests - tensile testing
- Other tests - Drum drop test
- Other tests - Voltage withstand test
- Mechanical testing - Packaging compression test
- Mechanical testing - Drop test
- Mechanical inspection - mechanical shock test
- Mechanical testing - Three comprehensive vibration tests
- Mechanical testing - Vibration testing
- Climate environment testing - Xenon lamp aging test
- Climatic environment testing - UV ultraviolet test
- Climate Environmental Testing - Low Pressure Test
- Climatic environment testing - IP level (waterproof and dustproof test)
- Climatic Environmental Testing - Salt Spray Test
- Climatic Environmental Testing - Walkthrough Temperature Test
- Climatic environment test - cold and hot shock test
- Climate environment testing - rapid temperature change test
- Climatic environmental testing - alternating damp heat test
- Climate environment testing - Temperature cycling test
- Climatic Environmental Testing - High Temperature Testing
- Climatic Environmental Testing - Low Temperature Testing
- Reliability testing
- Inspection of ship lighting fixtures
- COI Index Test for Medical Indoor Lighting
- Lamp safety inspection
- Luminaire energy efficiency testing
- EMC testing of lighting fixtures
- Integral Ball Laboratory
- Photobiology Experiment
- Light distribution test
- Lamp aging test
- Lamp IP waterproof
- Lamp performance testing
- Lamp reliability testing
Certification Services
Register for the record
Systems and Training Services
Laboratory design and construction
Contact Us
National 24-hour service hotline
400-116-2629
Group Headquarters
E-mail: webmaster@lcs-cert.com
Address: Shenzhen City, Baoan District, Shajing Street, Nga side of the school of Wei Juji Industrial Park, Building A 1 ~ 2 floor, Building C 3 floor
COI Index Test for Medical Indoor Lighting
Cyanosis Observation Index (COI)
WHAT IS CYANOSIS? What is cyanosis?
Cyanosis is a medical term that refers to the skin/membrane turning blue or purple. This indicates that the tissue oxygen saturation near the skin/membrane is low. Therefore, it is a visual representation of a range of potential heart or respiratory problems and a symptom that medical professionals are trained to look for.
HOW DOES LIGHTING HELP? What does lighting help with?
Because cyanosis is a visual indication of medical symptoms based on observable colors, lighting conditions and light quality play an important role in its visual detection. The detection of skin "turning blue" largely depends on the accurate reproduction of "normal" skin tone and blue hue, so it is particularly important to consider the factors of light chromatography (as well as color rendering index) when developing lighting designs.
Lighting Design Considerations
Article 7.2 of AS/NZS 1680.2.5 Interior Lighting Part 2.5: Hospital and Medical Tasks specifies the characteristics of light sources used under visual conditions suitable for detecting cyanosis.
CYANOSIS OBSERVATION INDEX Cyanosis Observation Index
Appendix G of AS/NZS 1680.2.5 specifies the calculation procedure for determining the cyanotic observation index (COI) of a light source.
This principle is based on the calculated size of the color and appearance changes of fully oxygenated blood (100% oxygen saturation) and oxygen reduced blood (50% oxygen saturation blue purple blood) when illuminated compared to a 4000K reference light source. Provide spectral reflectance data for oxygenated blood and cyanide blood, multiplied by the spectral distribution data of the considered light source. The color was calculated in CIE Lab * space and compared with a 4000K reference light source to obtain the value of Cyanosis Observation Index (COI). The lower the COI value, the smaller the change in color appearance under the considered light source illumination.
The COI index test for medical lighting is the key to ensuring that doctors can accurately determine patient cyanosis (skin turning blue). It evaluates lighting quality by quantifying the light source's ability to reproduce blood color. Simply put, the lower the COI value, the more accurate the light source is in identifying cyanosis.
Testing principle
The COI value is calculated by comparing the color changes of fully oxygenated blood (bright red) and hypoxic blood (blue purple) under specific light sources. The standard requires the use of a 4000K reference light source, and the results are obtained through spectral data and CIE Lab color space analysis.
Why is it important?
Cyanosis is a visual signal of hypoxia, and accurate recognition relies on the light source's ability to restore blue color. COI testing ensures that lighting designs comply with medical standards (such as AS/NZS 1680.2.5) to avoid misdiagnosis.
Practical application
Operating room: A high COI value is required to distinguish between tissue and blood.
Emergency room: Low COI values may affect the assessment of skin cyanosis.
Standard: AS/NZS 1680.2.5 specifies the COI testing method to ensure that the light source is suitable for medical tasks.
LCS Testing is currently one of the few laboratories in China with instruments and equipment that can independently complete tests and issue test reports. For detailed testing requirements, please consult the LCS specialist.
Large-scale experimental base
Professional Lab
Analysis Method
Testing/year
WeChat Inquiry
Reservation
Contact Us
National 24-hour service hotline
Address：Juji Industrial Park, Xueziwei, Ngabian, Shajing Street, Baoan District, Shenzhen Building A 1~2F, Building C 3F
WeChat public number
Share industry dry goods
WeChat consultation
Please note consulting services
Follow Jitterbug
Mobile website
di complaint mailbox: customer.complaint@lcs-cert.com complaint telephone tel: 18126445450 certificate report verification of authenticity mailbox: verification@lcs-cert.com