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Shenzhen NTEK Testing Technology Co., Ltd.

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Hot Line 400-800-6106
NTEK Group
Tel:+8618923705875 Q Q:61827361 Blocks C, D and E of Fenda Science and Technology Creative Park, Xixiang, Baoan District, Shenzhen

Degradability testing of plastics

Basic introduction

Beitest Testing is a professional third-party testing agency for plastic degradability testing. It mainly provides experimental data around plastic photodegradation testing, compost degradation testing, and biodegradation testing!

Testing services

Degradable plastic material detection
Carbon dioxide copolymer aliphatic polycarbonate, polysuccinate-butylene adipate, polybutylene succinate, polybutylene succinate-terephthalate, poly3-hydroxybutyl Acid ester, polyparadioxohexanone, polyglycolide, cellulose acetate, starch, polyhydroxyalkanoate, polycaprolactone, polylactic acid, polybutylene succinate and the like.
Catering plastic products testing
Fast food boxes, disposable cups, plates, cutlery, food trays, supermarket dishes, etc.
Plastic packaging material testing
Shopping bags, bags, garbage bags, food packaging and containers, fresh food trays, various beverages, ice cream ice cream cups, disposable tea cups, beer packaging and high-end packaging, aviation tableware, etc.
Civil and plastic building materials testing
Wasteland, desert greening and water-retaining substrates, industrial water-retaining boards, vegetation nets, civil engineering structural frames that are difficult to repair, etc.

Test items

Plastic degradation tests are mainly performed on plastics using visual observation, mass loss, molecular weight change, mechanical properties, carbon dioxide release / oxygen consumption, plate culture method, etc .; among them, visual observation and evaluation are mainly performed by SEM and atomic force microscope (AFM) Observation of structural changes before and after degradation includes surface roughness, formation of voids and cracks, splitting and breaking, and color changes.
Tensile fracture elongation retention: Tensile fracture elongation, Tensile fracture elongation retention, weight average relative molecular weight decrease rate, and percentage of molecules with relative molecular mass less than 10,000
Light degradation test: natural exposure test, xenon lamp artificial accelerated aging box test
Biodegradation test: soil landfill biodegradation test, specific microorganism culture test, compost landfill biodegradation test
Composting performance test: composting ability (maximum biodegradability), compost quality (organic matter, pH value, total chromium, mercury, cadmium, lead, arsenic, total nitrogen, total phosphorus, total potassium, moisture, particle size)
Ecotoxicity test: habitat function evaluation test, retention function evaluation test, biological and microbial live test and in vitro test, sub-individual, individual, community ecosystem toxicity test
Plastic Stability and Reactivity: Stability Test, Polymer Hazard Test, Incompatibility Test Study, Contact Condition Test Study
Hazardous substance test: heavy metal content, EU REACH and RoHS test
Testing methods for plastic degradability: Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), nuclear magnetic resonance (NMR), water absorption, contact angle analysis, thermal weight loss (TGA), pyrolysis-mass spectrometer Py-GCMS), X-ray spectroscopy (XPS), X-ray diffraction (XRD).

Testing standards

GB / T 20197-2006 Definition, classification, marking and degradation performance requirements of degradable plastics
GB / T 32163.2-2015 Eco-design product evaluation specification Part 2: Degradable plastic
GB / T 27868-2011 biodegradable starch resin
GB 18006.1-1999 General technical requirements for disposable degradable tableware
GB / T 18006.2-1999 Test method for degradation performance of disposable degradable tableware
GB / T 19276.1—2003 Determination of the ultimate aerobic biodegradability of materials in aqueous culture medium The method of measuring the oxygen demand in a closed respirometer
GB / T 19276.2—2003 Determination of final aerobic biodegradability of materials in aqueous culture medium
GB / T 19277.1-2011 Determination of the ultimate aerobic biodegradability of materials under controlled composting conditions. The method for measuring the released carbon dioxide. Part 1: General method
GB / T 19277.2-2013 Determination of final aerobic biodegradability of materials under controlled composting conditions Method for measuring released carbon dioxide Part 2: Determination of carbon dioxide release under laboratory conditions by gravimetric method
GB / T 16422.2—2014 Plastic laboratory light source exposure test methods-Part 2: Xenon arc lamps
QB / T 2670-2005 Definition, classification and degradation performance requirements of degradable plastic sheet
QB / T 2461-1999 degradable polyethylene film for packaging
HJ / T 209-2005 Technical requirements for environmental labeling products Packaging products
HJ / T 205-2005 Technical requirements for environmental labeling products Disposable tableware
International standard ISO14855. Determination of ultimate aerobic biodegradability of plastic materials under controlled composting conditions. Analytical methods for the evolution of carbon dioxide. Part 1: General methods
U.S. standard ASTM D5338 test method for aerobic biodegradation of plastic materials under controlled mixing conditions
German standard DIN V54900 Testing of compost for plastics-Part 1: Chemical testing
Japanese Standard JIS K6950 Plastics-Method for Determining the Maximum Biodegradability of Aerobic Bacteria in Aquaculture Solution-Determination of Oxygen Consumption with a Breath Occlusion Meter

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