GB/T 28206-2011 English PDF (GBT28206-2011)

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GB/T 28206-2011: Specification for compostable plastic
GB/T 28206-2011
Specification for compostable plastic
ICS 83.080.01
Y28
National Standards of People's Republic of China
Compostable plastic technical requirements
(ISO 17088.2008, IDT)
Published on.2011-12-30
2012-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard adopts the translation method equivalent to ISO 17088.2008 "Technical requirements for compostable plastics".
Compared with ISO 17088.2008, this standard adds CJ/T 3059-1996 “Urban Domestic Waste Compost” to Appendix A.
Treatment plant technical evaluation index.
The Chinese standards that have a consistent correspondence with ISO are as follows.
GB/T 2035-2008 Plastic terminology and its definition (ISO 472.1999, IDT);
GB/T 19811-2005 Determination of the degree of disintegration of plastic materials under the conditions of composting pilot test (ISO 16929.2002,
IDT);
GB/T 19277.1-2011 Determination of the final aerobic biodegradation and disintegration ability of materials under controlled composting conditions
Method of releasing carbon dioxide Part 1. General method (ISO 14855-1.2005, IDT).
This standard was proposed by the China Light Industry Association.
This standard is under the jurisdiction of the National Plastics Standardization Technical Committee (TC48).
This standard was drafted by the Light Industry Plastics Processing Application Research Institute and the National Plastic Products Quality Supervision and Inspection Center (Beijing).
The main drafters of this standard. Weng Yunxuan and Li Ziyi.
introduction
The disposal of solid waste has become an issue of increasing concern worldwide. Cities, towns and villages are trying to pass various recycling parties
The law changes the way of landfill and non-energy recycling of waste in order to recover more available waste and turn waste into useful
product. Plastic recycling technology includes material recovery (physical recovery, chemical or raw material recovery, biological or organic recycling) and thermal energy under controlled conditions
Recycling. As compost (bio or organic recycling) applications continue to grow, it is necessary to properly identify compostable plastics and products that are made
The product should be disintegratable, biodegradable under composting conditions and will not have any permanent toxic residues.
Compostable plastic technical requirements
WARNING. Wastewater, activated sludge, soil, and compost may contain potential pathogens, so appropriate precautions should be taken when handling.
Special care must be taken when handling toxicity test compounds or compounds of unknown nature.
1 Scope
This standard specifies procedures and requirements for the identification and identification of plastics and products with aerobic composting performance.
The technical requirements of this standard include the following four aspects.
a) biodegradability;
b) disintegration performance;
c) negative impacts on composting processes and equipment;
d) The quality of the resulting compost, including the amount of controlled metals and other harmful components.
This standard also specifies the identification content of compostable plastics and products, such as “compostable” or “compostable in municipal or commercial facilities” or “heap”
Biodegradable in the process of fertilizer."
Note. Composting of compostable plastics should be carried out in well-run composting facilities, requiring suitable temperature, water content, aerobic conditions, carbon/nitrogen ratio
And processing methods, etc. Commercial and municipal composting equipment can usually meet these conditions. Under these conditions, compostable plastics will disintegrate and biological
Decomposition, the decomposition rate is equivalent to garden waste, kraft paper bags and food debris.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2035-2008 Plastic terminology and its definition (ISO 472.1999, IDT)
GB/T 19277.1-2011 Determination of the final aerobic biodegradation and disintegration ability of materials under controlled composting conditions
Method of releasing carbon dioxide Part 1. General method (ISO 14855-1.2005, IDT)
GB/T 19811-2005 Determination of the degree of disintegration of plastic materials under the conditions of composting pilot test (ISO 16929.2002,
IDT)
ISO 14855-2 Determination of the ultimate aerobic biodegradation and disintegration capacity of materials under controlled composting conditions
Methods of carbonation - Part 2. Laboratory scales - Determination of carbon dioxide emissions by weight
ISO 20200 Plastics Determining the degree of disintegration of plastic materials in a laboratory scale condition composting environment
EN13432 Packaging requirements for recyclability of packaging by composting and biodegradation Test plan and final acceptance criteria for packaging
ASTMD5338 Method for the determination of aerobic biodegradation of plastics under controlled composting conditions
OECD208 Chemical Testing Practice Terrestrial Planting Test
3 Terms and definitions
The following terms and definitions as defined in GB/T 2035-2008 apply to this document.
3.1
Biodegradableduringcomposting in composting
Synonymous with "compostable" (see definition of compostable plastic)
3.2
Catalyst catalyst
It is a substance that has a small amount of components and can accelerate the chemical reaction rate, and the chemical properties of the chemical reaction itself remain unchanged.
3.3
Compost compost
It is an organic soil conditioner obtained by biological decomposition of the mixture. The mixture consists mainly of plant residues and sometimes contains some organic
Materials and certain inorganic substances.
3.4
Compostable plastic compostableplastic
In the biodegradation process of composting, plastics are converted to carbon dioxide (CO2) and water at a rate comparable to other known compostable materials.
(H2O) and the inorganic and biomass contained therein, and should not have visible, distinguishable residues and toxic residues.
3.5
Composting composting
An aerobic treatment method that produces compost.
3.6
Disintegration
The material is physically broken into extremely small pieces.
3.7
Filler filer
Adding an inert solid material to the plastic for improving its strength, durability, usability or other properties, or for reducing cost.
3.8
Theoretical release of carbon dioxide theoreticalamountofevolvedcarbondioxide, ThCO2
The theoretical maximum value of carbon dioxide that can be generated when the test material is completely oxidized can be calculated from the molecular formula to test per gram or milligram.
The number of milligrams of carbon dioxide released by the material is expressed in mgCO2/g or mg of test material.
3.9
Total dry solids totaldrysolids
The amount of solids obtained by drying a known volume of material or compost at 105 ° C to constant weight.
3.10
Ultimate aerobic biodegradation ultimateaerobicbiodegradation
Under aerobic conditions, organic compounds are decomposed by microorganisms into carbon dioxide (CO2), water (H2O) and mineralized inorganic salts of the elements contained the...