Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This standard was proposed by and is under the jurisdiction of National Technical Committee on Bio-based Materials and Degradable Products of Standardization Administration of China (SAC/TC 380).
Degradability and identification requirements of biodegradable plastics and products
1 Scope
This standard specifies the degradability and identification requirements of biodegradable plastics and products. The performance of specific product other than degradability shall meet the requirements of the product standard.
This standard is applicable to the following types of biodegradable plastics and products:
——natural polymer materials;
——synthetic polymers;
——materials containing additives such as plasticizers, pigments or other compounds;
——mixture of the above materials;
——products processed from various biodegradable materials.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1844.2 Plastic - Symbols and abbreviated - Part 2: Fillers and reinforcing materials
GB/T 9345.1-2008 Plastics - Determination of ash - Part 1: General methods
GB/T 15337 General rules for atomic absorption spectrometric analysis
GB/T 19276.1 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer
GB/T 19276.2 Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by analysis of evolved carbon dioxide
GB/T 19277.1 Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1: General method
GB/T 19277.2 Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test
GB/T 19811 Determination of the degree of disintegration of plastic materials under defined composting conditions in a pilot-scale test
GB/T 22047 Plastics - Determination of the ultimate aerobic biodegradability in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved
GB/T 32106 Plastics - Determination of the ultimate anaerobic biodegradation of plastic materials in an aqueous system - Method by measurement of biogas production
GB/T 33797 Plastics - Determination of the ultimate anaerobic biodegradation under high-solids anaerobic-digestion conditions - Method by analysis of released biogas
GB/T 37837 General rules for quadrupole inductively coupled plasma mass spectrometry
GB/T 38737 Plastics - Determination of the ultimate anaerobic biodegradation of plastic materials in controlled slurry digestion systems - Method by measurement of biogas production
GB/T 39498 Guidelines for the use and control of key chemical substances in consumer product
GB/T 40367 Plastics - Determination of the aerobic biodegradation of nonfloating materials exposed to marine sediment - Method by analysis of evolved carbon dioxide
GB/T 40611 Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sandy sediment interface - Method by measuring the oxygen demand in closed respirometer
GB/T 40612 Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sediment interface - Method by analysis of evolved carbon dioxide
ISO 10253 Water quality - Marine algal growth inhibition test with Skeletonema costatum and Phaeodactylum tricornutum
ISO 11348-3 Water quality - Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) - Part 3: Method using freeze-dried bacteria
ISO 14669 Water quality - Determination of acute lethal toxicity to marine copepods (Copepoda, Crustacea)
ISO 16712 Water quality - Determination of acute toxicity of marine or estuarine sediment to amphipods
ISO 22766 Plastics - Determination of the degree of disintegration of plastic materials in marine habitats under real field conditions
ASTM D 6691 Standard test method for determining aerobic biodegradation of plastic materials in the marine environment by a defined microbial consortium or natural sea water inoculum
ASTM E 1676 Standard guide for conducting laboratory soil toxicity or bioaccumulation tests with the lumbricid earthworm eisenia fetida and the enchytraeid potworm enchytraeus albidus
DIN 51723: 2002 Testing of solid fuels - Determination of fluorine content
EN 13432: 2000 Packaging - Requirements for packaging recoverable through composting and biodegradation - Test scheme and evaluation criteria for the final acceptance of packaging
OECD 208 Terrestrial plant test: Seedling emergence and seedling growth test
3 Terms and definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
biodegradation
property that the material is degraded caused by biological activities, especially action of enzyme, through which the material is progressively disintegrated by microorganisms or certain organisms as a nutritional resource, resulting in decrease of relative molecular mass, loss of mass, degradation of physical properties etc., and eventually the decomposition of the material into compounds of simpler composition and mineralized inorganic salts of the elements it contains, as well as dead biological bodies
[Source: GB/T 20197-2006, modified]
3.2
degree of biodegradation
percentage of the accumulated measurement of carbon dioxide to the theoretical release of carbon dioxide in the material during the test, in which the organic carbon contained in the test material will be decomposed into carbon dioxide by microorganisms in the aerobic biodegradation process, or percentage of the accumulated measurement of biogas to the theoretical release of biogas in the material during the test, in which the organic carbon contained in the test material will be decomposed into biogas (carbon dioxide and methane) by microorganisms in the anaerobic biodegradation process
3.3
absolute degree of biodegradation
measured degree of biodegradation of test material samples in the process of biodegradation
3.4
relative degree of biodegradation
percentage of the degree of biodegradation of sample to that of reference material, which is obtained by using thin-layer cellulose as control reference material in the biodegradation test to inspect the activity of degradation medium, in which the biodegradation process of the reference material is the same as that of the test material
3.5
disintegration
process of test materials and products, after being decomposed by microorganisms together with fresh biomass waste during composting, changing from large shape to extremely fine fragments under physical or chemical action
[Source: GB/T 19811, modified]
3.6
disintergration
percentage of the mass of test material fragment residue on the sieve after the compost is sized through a 2mm sieve at the end of the composting process to the total dry solids mass of the material before the test
3.7
soil-degradable
property that the material can be eventually decomposed into simple compounds such as carbon dioxide (CO2) or/and methane (CH4) and water (H2O) as well as mineralized inorganic salts of the containing elements and dead biological bodies under the condition of soil landfill
3.8
composting-degradable
property that the material can be eventually decomposed into simple compounds such as carbon dioxide (CO2) or/and methane (CH4) and water (H2O) as well as mineralized inorganic salts of the containing elements and dead biological bodies under the condition of composting
3.9
industrial composting
handling method for producing compost under industrial conditions
Note: Compost is an organic soil conditioner obtained from biodegradation of mixture which is mainly composed of plant residues, sometimes contains some organic materials and certain inorganic substances.
3.10
home composting
composting process for the disposal of products of private or household organic waste such as food garden and paper products waste
Note: The compost from home composting is generally used for private use without the need of any commercial transaction.
3.11
marine-degradable
property that the material can be eventually decomposed into simple compounds such as carbon dioxide (CO2) or/and methane (CH4) and water (H2O) as well as mineralized inorganic salts of the containing elements and dead biological bodies in marine environment (e.g. sediment interface, sediment, other actual field conditions and mesophilic simulation condition in laboratory)
3.12
freshwater environment-degradable
property that the material can be eventually decomposed into simple compounds such as carbon dioxide (CO2) or/and methane (CH4) and water (H2O) as well as mineralized inorganic salts of the containing elements and dead biological bodies in freshwater environment (e.g. river, lake and simulated aqueous nutrient solution)
3.13
slurry anaerobic digestion
property that the material can be eventually decomposed into simple compounds such as carbon dioxide (CO2) or/and methane (CH4) and water (H2O) as well as mineralized inorganic salts of the containing elements and dead biological bodies in slurry anaerobic digestion device or simulated anaerobic digestion device
3.14
high-solids anaerobic digestion
property that the material can be eventually decomposed into simple compounds such as carbon dioxide (CO2) or/and methane (CH4) and water (H2O) as well as mineralized inorganic salts of the containing elements and dead biological bodies in actual high-solids anaerobic digestion device or simulated high-solids anaerobic digestion environment
4 Degradability requirements
4.1 Organic ingredients (volatile solid content)
The organic ingredients (volatile solid content) of biodegradable plastics and products shall be greater than or equal to 51%.
4.2 Chemical properties
4.2.1 Limit for content of heavy metals and specific elements
As for chemical properties, the limit requirements for content of heavy metals and specific elements are mainly specified. See Table 1 for specific requirements.
Note 1: The content of heavy metals and specific elements is specified mainly because the organic carbon of products becomes small molecular substances such as carbon dioxide after degradation, and the heavy metals and specific elements contained will remain in the environmental medium. In order to avoid the pollution of residual elements to the medium, the limit requirements for content of heavy metals and specific elements are specified.
Note 2: The limit requirements refer to GB/T 28206-2011 (IDI ISO 17088), and the required limits of heavy metals and specific elements given in this standard are mainly based on 50% in American standard 40 CFR 503.13, the specified values in Canadian standard BNQ 9011-911-I/2007 and that in the ecological standards with eco-labels granted by the European Union to soil improvement groups, the Japanese fertilizer control law (Ministry of Agriculture, Forestry and Fisheries) and compost control code (agriculture).
Table 1 Limit requirements for content of heavy metals and specific elements
Heavy metals and specific elements Limit (dry weight)/(mg/kg)
Arsenic (As) ≤5
Cadmium (Cd) ≤0.5
Cobalt (Co) ≤38
Chromium (Cr) ≤50
Copper (Cu) ≤50
Fluorine (F) ≤100
Mercury (Hg) ≤0.5
Nickel (Ni) ≤25
Molybdenum (Mo) ≤1
Lead (Pb) ≤50
Selenium (Se) ≤0.75
Zinc (Zn) ≤150
4.2.2 Substances of very high concern
All materials used shall comply with the national laws and regulations on products or prohibited hazardous substances in certain fields, especially those classified as carcinogenic, mutagenic, reproductive toxic, and allergenic substances shall be paid close attention to. Substances of very high concern shall comply with the requirements of GB/T 39498, and the manufacturer shall provide relevant evidence such as self-declaration.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Degradability requirements
5 Selection of inspection methods for degradability
6 Identification
7 Identification marking requirements
Annex A (Normative) Pattern and specification for identification of biodegradable plastics and products
Annex B (Informative) Existing national or professional standards for biodegradable plastics and products
Bibliography
生物降解塑料与制品降解性能及标识要求
1 范围
本文件规定了生物降解塑料与制品的降解性能和标识要求。具体制品除降解性能外的其他性能应符合该产品标准的要求。
本文件适用于下列各类生物降解塑料与制品:
——天然高分子材料;
——合成聚合物;
——含有如增塑剂﹑颜料或其他化合物等添加剂的材料;
——以上材料的混合物;
——各类生物降解材料加工而成的制品。
2 规范性引用文件
下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中,注日期的引用文件,仅该日期对应的版本适用于本文件;不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。
GB/T 1844.2 塑料 符号和缩略语 第2部分:填充及增强材料
GB/T 9345.1—2008 塑料 灰分的测定 第1部分:通用方法
GB/T 15337 原子吸收光谱分析法通则
GB/T 19276.1 水性培养液中材料最终需氧生物分解能力的测定 采用测定密闭呼吸计中需氧量的方法
GB/T 19276.2 水性培养液中材料最终需氧生物分解能力的测定 采用测定释放的二氧化碳的方法
GB/T 19277.1 受控堆肥条件下材料最终需氧生物分解能力的测定 采用测定释放的二氧化碳的方法 第1部分:通用方法
GB/T 19277.2 受控堆肥条件下材料最终需氧生物分解能力的测定 采用测定释放的二氧化碳的方法 第2部分:用重量分析法测定实验室条件下二氧化碳的释放量
GB/T 19811 在定义堆肥化中试条件下塑料材料崩解程度的测定
GB/T 22047 土壤中塑料材料最终需氧生物分解能力的测定 采用测定密闭呼吸计中需氧量或测定释放的二氧化碳的方法
GB/T 32106 塑料 在水性培养液中最终厌氧生物分解能力的测定 通过测量生物气体产物的方法
GB/T 33797 塑料 在高固体份堆肥条件下最终厌氧生物分解能力的测定 采用分析测定释放生物气体的方法
GB/T 37837 四极杆电感耦合等离子体质谱方法通则
GB/T 38737 塑料 受控污泥消化系统中材料最终厌氧生物分解率测定 采用测量释放生物气体的方法
GB/T 39498 消费品中重点化学物质使用控制指南
GB/T 40367 塑料 暴露于海洋沉积物中非漂浮材料最终需氧生物分解能力的测定 通过分析释放的二氧化碳的方法
GB/T 40611 塑料 海水沉沙界面非漂浮塑料材料最终需氧生物分解能力的测定 通过测定密闭呼吸计内耗氧量的方法
GB/T 40612 塑料 海水沙质沉积物界面非漂浮塑料材料最终需氧生物分解能力的测定 通过测定释放二氧化碳的方法
ISO 10253 水质 用赤潮生物和三角褐指藻进行海洋藻类生长抑制试验(Water quality—Marine algal growth inhibition test with Skeletonema costatum and Phaeodactylum tricornutum)
ISO 11348-3 水质 对费氏弧菌发光抑制作用的测定(发光细菌试验) 第3部分:用冷冻干燥细菌的方法[Water quality—Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test)—Part 3:Method using freeze-dried bacteria]
ISO 14669 水质 对海洋桡足类(桡足类,甲壳类)急性致死毒性的测定[Water quality—Determination of acute lethal toxicity to marine copepods (Copepoda,Crustacea)]
ISO 16712 水质 海洋或河口沉积物对片脚类动物急性毒性的测定(Water quality—Determination of acute toxicity of marine or estuarine sediment to amphipods)
ISO 22766 塑料 在实际海洋环境中塑料材料崩解程度的测定(Plastics—Determination of the degree of disintegration of plastic materials in marine habitats under real field conditions)
ASTM D 6691 测定塑料材料在定义微生物群落或天然海水接种物的海洋环境中需氧生物降解试验方法(Standard Test Method for Determining Aerobic Biodegradation of Plastic Materials in the Marine Environment by a Defined Microbial Consortium or Natural Sea Water Inoculum)
ASTM E 1676 用蚓蚯和白叶潜蝇进行实验室土壤毒性或生物积累试验方法(Standard Guide for Conducting Laboratory Soil Toxicity or Bioaccumulation Tests with the Lumbricid Earthworm Eisenia Fetida and the Enchytraeid Potworm Enchytraeus albidus)
DIN 51723:2002 固体燃料试验 氟含量的测定(Testing of solid fuels—Determination of fluorine content)
EN 13432:2000 包装 通过堆肥和生物降解进行回收的包装要求 包装最终验收试验方案及评价标准(Packaging—Requirements for packaging recoverable through composting and biodegradation—Test scheme and evaluation criteria for the final acceptance of packaging)
OECD 208 陆生植物试验 出芽率和植物生长测试(Terrestrial Plant Test:Seedling Emergence and Seedling Growth Test)
3 术语和定义
下列术语和定义适用于本文件。
3.1
生物降解 biodegradation
生物分解 biodegradation
由于生物活动尤其是酶的作用而引起材料降解,使其被微生物或某些生物作为营养源而逐步消解,导致其相对分子质量下降与质量损失、物理性能下降等,并最终被分解为成分较简单的化合物及所含元素的矿化无机盐﹑生物死体的一种性质。
[来源:GB/T 20197—2006,有修改]
3.2
生物降解率 degree of biodegradation
生物分解率 degree of biodegradation
在需氧生物降解过程中,试验材料所含有机碳会被微生物分解转化为二氧化碳,试验过程中累计测得的二氧化碳量和该材料二氧化碳理论释放量的百分率。
在厌氧生物降解过程中,试验材料所含有机碳会被微生物分解转化为生物气体(二氧化碳和甲烷),试验过程中累计测得的生物气体量和该材料生物气体理论释放量的百分率。
3.3
绝对生物降解率 absolute degree of biodegradation
生物降解过程中,试验材料样品实际测得的生物降解率。
3.4
相对生物降解率 relative degree of biodegradation
相对生物分解率 relative degree of biodegradation
在生物降解试验期间用薄层纤维素等作为生物降解中控制参比材料用来检验降解介质的活性,参比材料的生物降解过程与试验材料的处理方法相同,样品生物降解率和参比材料生物降解率的百分率即为相对生物降解率。
3.5
崩解 disintegration
在堆肥化过程中,试验材料和制品会随新鲜生物质废弃物一起被微生物分解,由于物理或化学作用从较大形状变为极其细小碎片。
[来源:GB/T 19811,有修改]
3.6
崩解率 disintergration
堆肥化过程结束时,堆肥经2 mm筛子分筛后,筛上物中大于2 mm试验材料碎片残留物的质量和试验前材料总干固体量的百分率。
3.7
可土壤降解 soil-degradable
在土壤填埋条件下,可最终被分解为二氧化碳(CO2)或/和甲烷(CH4)、水(H2O)等简单化合物及所含元素的矿化无机盐、生物死体的一种性质。
3.8
可堆肥化降解 composting-degradable
在堆肥化条件下,可最终被分解为二氧化碳(CO2)或/和甲烷(CH4),水(H2O)等简单化合物及所含元素的矿化无机盐、生物死体的一种性质。
3.9
工业堆肥 industrial composting
以工业化条件来产生堆肥的一种处理方法。
注:堆肥是混合物生物分解得到的有机土壤调节剂。该混合物主要由植物残余组成,有时也含有一些有机材料和一定的无机物。
3.10
家庭堆肥 home composting
一种处置私人或家庭产生的有机废物的产物如食物﹑花园和纸制品废物等的堆肥化处置过程。
注:产生的堆肥一般无需进行任何商业交易、用于私家使用目的。
3.11
海洋环境降解 marine-degradable
在海洋环境(如沉积物界面、沉积物、其他实际野外条件及其实验室嗜温模拟条件等)中,材料可最终被分解为二氧化碳(CO2)或/和甲烷(CH4),水(H2O)等简单化合物及所含元素的矿化无机盐、生物死体的一种性质。
3.12
淡水环境降解 freshwater environment-degradable
在淡水环境(如河流、湖泊及模拟水性培养液等)下,材料可最终被分解为二氧化碳(CO2)或/和甲烷(CH4)、水(H2O)等简单化合物及所含元素的矿化无机盐、生物死体的一种性质。
3.13
污泥厌氧消化 slurry anaerobic digestion
在污泥厌氧消化装置或模拟厌氧消化装置中,材料可最终被分解为二氧化碳(CO2)或/和甲烷(CH4)、水(H2O)等简单化合物及所含元素的矿化无机盐、生物死体的一种性质。
3.14
高固态厌氧消化 high-solids anaerobic digestion
在实际高固态厌氧消化装置或模拟高固态厌氧消化环境中,材料可最终被分解为二氧化碳(CO2或/和甲烷(CH4)、水(H2O)等简单化合物及所含元素的矿化无机盐、生物死体的一种性质。
4 降解性能要求
4.1 有机物成分(挥发性固体含量)
生物降解塑料与制品的有机物成分(挥发性固体含量)应大于或等于51%。
4.2 化学性能
4.2.1 重金属及特定元素含量限量
化学性能主要规定重金属及特定元素含量限量要求,具体要求见表1。
注1:规定重金属及特定元素含量,主要是由于制品降解后其有机碳变成了二氧化碳等小分子物质,而其所含的重金属及特定元素会残留在环境介质中,为了避免残留元素对介质污染,所以规定重金属及特定元素含量限量要求。
注2:限量要求参考了GB/T 28206—2011(IDI ISO 17088),该标准中给出的重金属及特定元素含量要求限量主要依据为美国40 CFR 503.13的50%、加拿大BNQ 9011-911-I/2007中,欧盟授予土壤改进团体环保标志的生态标准中的规定值、日本化肥控制法(农林渔业部)和堆肥控制规范(农业)。
表1 重金属及特定元素含量限量要求
重金属及特定元素 限量(干重)/(mg/kg)
砷(As) ≤5
镉(Cd) ≤0.5
钴(Co) ≤38
铬(Cr) ≤50
铜(Cu) ≤50
氟(F) ≤100
汞(Hg) ≤0.5
镍(Ni) ≤25
钼(Mo) ≤1
铅(Pb) ≤50
硒(Se) ≤0.75
锌(Zn) ≤150
4.2.2 高度关注物质
所使用的所有材料应符合国家在某些领域产品或禁用危险物的法律规定,特别是那些被划分为致癌的、致基因突变的、有生殖毒性的物质、引起过敏症的物质应受到高度关注。高度关注物质应符合GB/T 39498要求,由制造商应提供自我声明等相关证据。
4.3 生物降解率
生物降解率应符合下列要求:
a) 相对生物降解率应大于或等于90%,且材料中组分大于或等于1%的单一有机成分绝对生物降解率应大于或等于60%;
b) 如果生物降解塑料与制品由混合物或多种材质复合组成,则组分小于1%的有机成分也应生物降解,但可不提供能力证明,组分小于1%的各组分加和总量应小于5%。
注:组分大于或等于1%的有机成分应能提供生物降解能力证明如检验报告等;对组分含量小于1%的有机成分,生物降解能力可提供产品相应检验报告或者是企业自我声明。
4.4 崩解率
对宣称可工业堆肥,高固态厌氧消化、家庭堆肥等的生物降解塑料与制品,其崩解率应大于或等于90%。
4.5 降解产物生态毒性试验
4.5.1 降解产物植物毒性试验
如有要求时,生物降解塑料与制品的降解产物植物毒性试验出苗率应大于或等于90%,且样品降解产物种植植物经过105℃,3 h烘干后的质量与空白组种植植物烘干后质量的百分比应大于或等于90%。
4.5.2 降解产物蚯蚓试验通过率
如有要求时,生物降解塑料与制品的降解产物的蚯蚓试验存活率应大于或等于90%,且存活蚯蚓与试验初蚯蚓质量之比应大于或等于90%。
5 降解性能检验方法选择
有机成分(挥发性固体)含量按GB/T 9345.1—2008中方法A进行测试,测试温度为650℃。
降解环境条件主要有淡水环境、堆肥化、土壤、海洋环境、污泥厌氧消化、高固态厌氧消化等环境。有关降解性能的标识,应按照降解环境条件进行标识,并按表2选择相应的检验方法。
表2 不同降解条件下降解性能检验方法
降解环境条件 测试项目 检验方法
淡水环境降解条件 水性培养液(模拟河流、湖泊等淡水环境) 需氧 生物分解率 GB/T 19276.1,试验周期180 d
GB/T 19276.2,试验周期180 d
厌氧 生物分解率 GB/T 32106,试验周期60 d
需氧/厌氧 生态毒性 ISO 11348-3、ISO 10253、ISO 14669和ISO 16712
重金属及特定元素含量要求 将样品经高压系统微波消解,然后用原子吸收仪按GB/T 15337进行测试,或者用四极杆电感耦合等离子体质谱仪按照GB/T 37837进行检测。仲裁时按照GB/T 15337进行检测。
将样品与石英砂放在燃烧舟里混合盖上适量石英砂,在通水蒸气和氧气情况下高温炉1 250℃中煅烧15 min,氧气流速1.0 L/min,收集冷凝液。依据DIN 51723:2002,用等离子色谱测定仪进行氟含量测试
高度关注物质(SVHC) 自我声明等相关证据
可堆肥化降解条件 工业堆肥化条件 需氧 生物分解率 GB/T 19277.1,试验周期180 d
GB/T 19277.2,试验周期180 d
崩解率 GB/T 19811,试验周期12周
重金属及特定元素含量 将样品经高压系统微波消解,然后用原子吸收仪按GB/T 15337进行测试,或者用四极杆电感耦合等离子体质谱仪按照GB/T 37837进行检测。仲裁时按照GB/T 15337进行检测。
将样品与石英砂放在燃烧舟里混合盖上适量石英砂,在通水蒸气和氧气情况下高温炉1 250℃中煅烧15 min,氧气流速1.0 L/min,收集冷凝液。依据DIN 51723:2002,用等离子色谱测定仪进行氟含量测试
降解产物毒性试验 OECD 208和EN 13432:2000中附录E
家庭堆肥化条件 需氧 生物分解率 GB/T 19277.1,试验周期365 d
GB/T 19277.2,试验周期365 d
崩解率 GB/T 19811,试验周期180 d
重金属及特定元素含量 将样品经高压系统微波消解,然后用原子吸收仪按GB/T 15337进行测试,或者按照四极杆电感耦合等离子体质谱仪按照GB/T 37837进行检测。仲裁时按照 GB/T 15337进行检测。
将样品与石英砂放在燃烧舟里混合盖上适量石英砂,在通水蒸气和氧气情况下高温炉1 250℃中煅烧15 min,氧气流速1.0 Lmin,收集冷凝液。依据DIN 51723:2002,用等离子色谱测定仪进行氟含量测试
降解产物毒性试验 OECD 208和EN 13432:2000中附录E
可土壤降解条件
土壤条件
需氧 生物分解率 GB/T 22047,试验周期2年
生态毒性 OECD 208和EN 13432:2000中附录E
蚯蚓试验 ASTM E 1676
重金属及特定
元素含量 将样品经高压系统微波消解,然后用原子吸收仪按GB/T 15337进行测试,或者用四极杆电感耦合等离子体质谱仪按照GB/T 37837进行检测。仲裁时按照GB/T 15337进行检测。
将样品与石英砂放在燃烧舟里混合盖上适量石英砂,在通水蒸气和氧气情况下高温炉1 250℃中煅烧15 min,氧气流速1.0 Lmin,收集冷凝液。依据DIN 51723:2002,用等离子色谱测定仪进行氟含量测试
高度关注物质 自我声明等相关证据
海洋环境降解条件 沙质沉积物界面 需氧 生物分解率 GB/T 40612,试验周期2年
海洋沉积物 需氧 生物分解率 GB/T 40611,试验周期2年
实际野外条件 需氧 生物分解率 GB/T 40367,试验周期2年
崩解率 ISO 22766,试验周期3年
实验室嗜温条件 需氧 生物分解率 GB/T 40611(或GB/T 40612)、GB/T 40367和ASTM D 6691
生态毒性 ISO 11348-3、ISO 10253、ISO 14669和ISO 16712
重金属及特定元素含量要求 将样品经高压系统微波消解,然后用原子吸收仪按GB/T 15337进行测试,或者用四极杆电感耦合等离子体质谱仪按照GB/T 37837进行检测。仲裁时按照GB/T 15337进行检测。
将样品与石英砂放在燃烧舟里混合盖上适量石英砂,在通水蒸气和氧气情况下高温炉1 250℃中煅烧15 min,氧气流速1.0 L/min,收集冷凝液。依据DIN 51723:2002,用等离子色谱测定仪进行氟含量测试
高度关注物质(SVHC) 自我声明等相关证据
污泥厌氧消化降解条件 污泥消化(模拟厌氧消化装置) 厌氧 生物分解率 GB/T 38737,试验周期60 d、最长90 d
高固态厌氧消化降解条件 高固态环境 厌氧 生物分解率 GB/T 33797,试验周期15 d