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Measurement and Calibration
Measurement and Calibration of Instruments and Equipment
Test of Electric Power Safety Tools and Instruments
Maintenance of Instruments and Equipment
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Radio metering
Radio metering
The radio parameter measurement capabilities are aligned with the highest domestic standards.
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Electromagnetic measurement
Electromagnetic measurement
The measurement standards are complete, and there are more than one hundred electromagnetic parameter approval projects.
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Environmental and Reliability Testing
Reliability Test of Automotive Electronic Components
Reliability Test of Interior and Interior Trim of Automobiles
Vehicle Reliability Test
Reliability Test for New Energy Products
Reliability Test of Ship Products
Reliability Test of Airborne Products
Reliability Test of Rail Transit Products
Smart Home Reliability Test
Functional Performance and Reliability Test of Robot
Test and Inspection of Unmanned Aerial Vehicle
Six-performance Design and Analysis
Simulation Analysis of Reliability and Mechanical Properties
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Failure analysis
Failure analysis
Through a comprehensive and systematic analysis, the failure mode and failure mechanism are determined to help improve reliability.
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Comprehensive environmental reliability test
Comprehensive environmental reliability test
It can provide comprehensive environmental testing for automotive vehicles and parts, aviation aircraft and various products.
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EMC Testing
EMC Test of Automotive Components
EMC Test of Whole Vehicle
EMC Test of New Energy High Voltage Components
EMC Test of Intelligent Connected Vehicle Parts
EMC Test of Airborne Avionics Products
EMC Test of Rail Transit Products
EMC Test of Power Equipment
EMC Test of Electronic Appliance Products
EMC Test of Communication Device
EMC Test of Medical Equipment
EMC Test of Marine Electronic Products
EMC Simulation
Electromagnetic Protection Design
Electromagnetic Environment Test
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Airborne
Airborne
Meet DO-160E/F/G electromagnetic compatibility testing requirements.
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Automotive vehicles and parts
Automotive vehicles and parts
Meet the electromagnetic compatibility testing needs of the entire automobile and its parts.
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Chemical Analysis
RoHS Testing
Test of Swimming Pool
Test of Ozone Depleting Substances (ODS)
VOC Test in Blue Sky Protection Campaign
Test of Medical Protective Gloves
Melt-blown Fabric Test
Test of Polypropylene (PP) Melt Blown Special Material
Flame Retardant Test
Rubber Physical Performance Test
Analysis of Plastic Materials
Plastic Physical Performance Test
Analytical Test of the Composition of Coatings and Adhesives
Analysis and Test of Metal Material Composition
Analysis of Rubber Composition
Material Consistency Analysis
Natural Emulsion Test
Analytical Test of Foreign Matters
EU 2006/66EC Battery Directive Test
REACH-SVHC Test
Persistent Organic Pollutants Test
VOC and Odor Tests
Asbestos Test
Test of Food Contact Materials
Test of Sports Areas
Metal Physical Performance Test
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ROHS detection
ROHS detection
Provide testing services for environmental protection requirements of electrical and electronic products including EU RoHS and China RoHS.
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Textile testing
Textile testing
Provide enterprises with testing services for textiles, clothing, garment accessories, leather and other textile products.
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Failure Analysis
AEC-Q101 Certification Test for Semiconductor Discrete Devices
AEC-Q102 Product Test of Optoelectronic Devices
AEC-Q200 Product Test of Resistance-capacitance Inductances and Other Components
Power Module LV/AQG 324 Certification Test
Destructive Physical Analysis (DPA) of Electronic Components
Screening of Electronic Components
Liquid Temperature Shock Certification Test of Fluorine Oil
FAKRA, HSD Connector Signal Integrity Test
Automobile Audio Index Test
Power Device Parameter Test
PCB PCBA Microsection Test
Tin Whisker Inspection
Material Life Prediction and Reliability Test and Analysis Service
Polymer Material Failure Analysis Service
Metal Failure Analysis Services
Metal Materials Testing and Analysing Services
Ion Cleanliness Testing
Welding Point Quality Test
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Safety Test and Certification
ICT Information and Communication Products
Audio and Video Products
Automotive Interior
Household Appliances
Lighting Products
Electrical Accessories
Wire and Cable
Motors and Electric Tools
Electric Welding Machine
Battery
Explosion-proof Electrical Product
Medical Equipment
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Health food testing
Health food testing
It can provide nutritional ingredient testing services for health foods (functional foods).
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Environmental Monitoring
Water Quality Test
Indoor Air Quality Testing
Soil Test
Test for Solid Waste and Hazardous Waste
Test for Sludge and Sediment
Electromagnetic Radiation Test
Test for Mobile Pollution Source
Oil and Gas Recovery Test
Coal Analysis
Customized Comprehensive Service of Environmental Protection Housekeeper
Acoustic Environment and Vibration Test
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Drinking water testing
Drinking water testing
Provide the drinking water detection program of centralized water supply and secondary water supply.
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Ambient air and exhaust gas detection
Ambient air and exhaust gas detection
Provide testing services for ambient air, organized exhaust gas from factories and enterprises, and unorganized exhaust gas.
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Food and Agricultural Product Testing
Pesticide Residue Testing
Veterinary Drug Residue Testing
Rapid Testing of Agricultural and Veterinary Drugs
Food Additive Testing
Nutrition label
Food Microorganism Testing
Drinking Water and Food Production Water Testing
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Pesticide and veterinary drug residue testing
Pesticide and veterinary drug residue testing
It can provide professional pesticide residue and animal residue detection services.
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Our Services Chemical Analysis Test of Polypropylene (PP) Melt Blown Special Material
Test of Polypropylene (PP) Melt Blown Special Material
GRG Test has a professional and efficient technical team and advanced and accurate inspection equipment, which can provide customers with professional testing services for polypropylene (PP) melt blown special materials.
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Service Introduction
As the core material of the mask, the performance of the melt blown PP material determines the quality of the mask. China has issued the national standard GB/T30923-2014 in 2014, which specifies the relevant performance requirements of the polypropylene (PP) melt blown special material. 
 

Product Scope: 

Polypropylene (PP) Melt Blown Special Material 
 

Test Cycle: 

7 working days 

 

Test Items: 

Test Item  Cycle Test Standard 
Melt mass-flow rate  7 days  GB/T 30923-2014
Ash content 
Appearance 
Volatile matter 
Di-tert-butyl peroxide residual amount 
Molecular weight distribution 
Qualitative analysis of the composition  GB/ T 6040-2002
Characteristics of melting and crystallization  GB/T 19466-2004

 

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