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test soil ultimate aerobic biodegradability pre-exposed soil oxygen demand carbon dioxide macroscopic method steady state damp heat test dynamic stiffness method
GB/T 22047-2008 in English

GB/T 22047-2008 in English

VALID

Plastics - Determination of the ultimate aerobic biodegradability in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved

  • Issued on:2008-06-18
  • Implemented on:2009-05-01
  • File Format:PDF
  • Delivery:Via email within 5 business days
Price(USD): $140.00
$136.00
Standard No: GB/T 22047-2008
Document status: VALID
Superseded by: GB/T 22047-2026 Determination of the ultimate aerobic biodegradability of plastic materials in soil—Method by measuring the oxygen demand or carbon dioxide evolved in a closed respirometer
Superseded on: 2026-12-01
Title in English: Plastics - Determination of the ultimate aerobic biodegradability in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved
Title in Chinese: 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
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 5 business days
Issued on: 2008-06-18
Implemented on: 2009-05-01
ICS Classification: 83.080.01-Plastics in general
Chinese Classification: G31-Basic standards and general methods for synthetic resin and plastic
Professional Classification: GB-National Standard
Related Keywords: test soil
ultimate aerobic biodegradability
pre-exposed soil
oxygen demand
carbon dioxide
Related Topics: BOD total carbon
BOD Carbon
dic
carbon dioxide decomposition
GB/T 22047-2008
microbial carbon dioxide
carbon dioxide method
carbon dioxide microbes
Carbon dioxide detection method
carbon dioxide decomposition
soil carbon dioxide
Respirometer
Measurement of Aerobic Capacity
final biochemical oxygen demand
soil carbon dioxide
Determination of Aquatic Biological Oxygen Demand
carbon dioxide microbes
carbon dioxide in soil
Method for Determination of Carbon Dioxide in Soil
airtight respirometer
break down carbon dioxide
Determination method of total oxygen demand
soil plastic
plastic in soil
GBT22047
GB/T 22047-2008
soil plastic
carbonation oxygen demand
aerobic respiration product carbon dioxide
Dissolved inorganic carbon national standard
Method for determination of hydroxyl radicals in soil

《GB/T 22047-2008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》由TC380(全国生物基材料及降解制品标准化技术委员会)、全国塑料制品标准化技术委员会联合归口,主管部门为国家标准化管理委员会。
本标准规定了通过测定密闭呼吸计中需氧量或测定释放的二氧化碳量的方法,测定土壤中塑料材料最终需氧生物分解能力。本标准通过调整试验土壤的湿度以获得生物分解率的最佳程度。
本标准适用于以下材料:
----天然和(或)合成聚合物、共聚物或它们的混合物;
----含有如增塑剂、颜料或其他化合物等添加剂的塑料材料;
----水溶性聚合物;
----在试验条件下,不会对土壤中的微生物的活性产生抑制作用的材料,抑制作用可应用抑制控制或其他适当方法来测得。如果试验材料对土壤中的微生物的活性有抑制作用时,可采用较低浓度的试验材料、其他接种物或已预曝置的土壤。
本标准等同采用ISO 17556:2003《土壤中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中需氧量或测定释放的二氧化碳的方法》(英文版),技术性内容完全相同,仅作如下编辑性修改:
―――“本国际标准”一词改为“本标准”;
―――用小数点“.”代替作为小数点的逗号“,”;
―――删除了国际标准前言。


Scope

This standard specifies the method for determining the final aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a closed respirometer or measuring the amount of released carbon dioxide. This standard obtains the optimum degree of biodegradation rate by adjusting the humidity of the test soil. If the non-pre-exposed soil is used as the inoculum, this test only simulates the biodegradation process in the natural soil environment; if the pre-exposed soil is used, this standard can be used to determine the potential biodegradability of the test material. This standard applies to the following materials: - natural and (or) synthetic polymers, copolymers or their mixtures; - plastic materials containing additives such as plasticizers, pigments or other compounds; - water-soluble polymers; - materials that do not inhibit the activity of microorganisms in the soil under the test conditions, the inhibition can be measured using inhibition control or other appropriate methods (see ISO 8192:1986). If the test material has an inhibitory effect on the activity of microorganisms in the soil, a lower concentration of the test material, other inoculum or pre-exposed soil can be used.

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