GB/T 38082-2019 English PDFUS$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 38082-2019: Biodegradable plastic shopping bags Status: Valid
Basic dataStandard ID: GB/T 38082-2019 (GB/T38082-2019)Description (Translated English): Biodegradable plastic shopping bags Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Y28 Classification of International Standard: 83.140.01 Word Count Estimation: 14,149 Date of Issue: 2019-10-18 Date of Implementation: 2020-05-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 38082-2019: Biodegradable plastic shopping bags---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.Biodegradable plastic shopping bags ICS 83.140.01 Y28 National Standards of People's Republic of China Biodegradable plastic shopping bag 2019-10-18 released 2020-05-01 Implementation State Administration for Market Regulation Issued by China National Standardization Administration ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that certain contents of this document may involve patents. Publication of this document The agency is not responsible for identifying these patents. For biodegradable plastic shopping bags used for direct food contact, this standard specifies the quality requirements. The food safety indicators of plastic shopping bags shall comply with the requirements of relevant food safety standards. This standard was proposed and managed by the National Standardization Technical Committee for Bio-based Materials and Degradable Products (SAC/TC380). Drafting organizations of this standard. Shenzhen Wandajie Environmental New Materials Co., Ltd., Anhui Huachi Plastic Industry Co., Ltd., Jiangsu Huasheng Materials Section Technology Group Co., Ltd., Beijing Technology and Business University, Xinjiang Kangrunjie Environmental Technology Co., Ltd., Chongqing Lianfa Plastic Technology Co., Ltd. Division, Zhuhai Eked Environmental Protection New Material Co., Ltd., Jiangsu Tianren Biomaterials Co., Ltd., Nanjing Wurui Completely Biodegradable New Material Research Institute Co., Ltd., Guangdong Chongxi Environmental Protection Technology Co., Ltd., Shenzhen Zhengwang Environmental Protection New Material Co., Ltd., Zhejiang Huasheng Technology Co., Ltd. Co., Ltd., Suzhou Hanfeng New Materials Co., Ltd., Jilin COFCO Biomaterials Co., Ltd., Jinhui Zhaolong High-tech Co., Ltd., Yantai Jiayuan Biotechnology Co., Ltd., Henan Longdu Tianren Biomaterials Co., Ltd., Qinhuangdao Longjun Environmental Protection Industrial Development Co., Ltd., Zhejiang Jiangnan Yi Biological Technology Co., Ltd., Hubei Photosynthetic Biological Technology Co., Ltd., Shenzhen Hongcai New Material Technology Co., Ltd., Wuhan Hualisheng Co., Ltd., Nantong Longda Biological New Material Technology Co., Ltd., Zhangzhou Green Plastic New Material Co., Ltd., Jiangsu Zhongke Growth Environmental Protection Division Technology Co., Ltd., Gansu Mogaojuhe Environmental Protection New Material Technology Co., Ltd., Zhongke Qingyuan (Tianjin) Biotechnology Co., Ltd., Sichuan University, China Plastic Products Quality Supervision and Inspection Center (Beijing), Nantong Hengxin New Material Co., Ltd., Shenzhen Hengdeyuan Environmental Protection New Material Technology Co., Ltd. Company, Dongguan Junbang Packaging Industry Co., Ltd., Jilin Kaishun New Material Co., Ltd., Changchun Bicacheng Biomaterial Co., Ltd. The main drafters of this standard. Weng Yunxuan, Diao Xiaoqian, Wei Wenchang, Wang Chunqiu, Zhang Chunhua, Zhou Yingxin, Chen Zhiwei, Zhou Jiushou, Chen Xichang, Ruan Liuwen, Chen Yi, Chen Changping, Li Jun, Pei Xiaoqin, Wei Jie, Luo Dong, Zhang Jianhong, Sun Yuanzheng, Lu Guangchun, Tong Yi, Li Yajuan, Tan Lichao, Mao Bin, Zhi Zhaohui, Ying Gaobo, Xie Zhaowang, Xie Yonglei, Chen Xiaojiang, Zhang Libin, Zhang Tianyu, Li Zonghua, Xu Yanlong, Shangguan Zhihui, Du Guangzhen, Ma Quntao, Liu Xikuo, Zhang Guangjun, Wu Gang, Li Ziyi, Shen Chuanxi, Wu Guoxin, Shan Yuzhu, Song Yang. Biodegradable plastic shopping bag1 ScopeThis standard specifies the terms and definitions, requirements, test methods, inspection rules, packaging, transportation, and storage of biodegradable plastic shopping bags. This standard applies to films produced with biodegradable plastic resin as the main raw material, and those made by heat sealing or bonding and other bag making processes Plastic shopping bags are also suitable for shopping bags made of biodegradable plastic and other materials. This standard does not apply to biodegradable plastic bags that are only used for packaging and not for carrying purposes, such as biodegradable roll-to-roll bags (also called tearing Bag or point broken bag) etc.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 2828.1 Sampling inspection procedure by attributes Part 1.Batch inspection sampling plan retrieved by acceptance quality limit (AQL) GB/T 2918 Standard environment for condition adjustment and testing of plastic samples GB/T 6672 Plastic film and sheet thickness determination mechanical measurement method GB/T 6673 Determination of the length and width of plastic films and sheets GB/T 9345.1 Determination of ash content of plastics Part 1.General method GB/T 9639.1-2008 Test method for impact resistance of plastic films and sheets Free falling dart method Part 1.Step method GB/T 19276.1 The final aerobic biodegradability of materials in aqueous culture medium is determined by measuring the aerobic Method of measurement GB/T 19276.2 Determination of the final aerobic biodegradability of materials in aqueous culture medium method GB/T 19277.1 The final aerobic biodegradability of materials under controlled composting conditions is determined by measuring the released carbon dioxide Method Part 1.General Method GB/T 19277.2 The final aerobic biodegradability of materials under controlled composting conditions is determined by measuring the released carbon dioxide Method Part 2.Using gravimetric method to determine the amount of carbon dioxide released under laboratory conditions GB/T 21660 General technical requirements for environmental protection, safety and labeling of plastic shopping bags QB/T 2358 Test method for heat sealing strength of plastic film packaging bags3 Terms and definitionsThe following terms and definitions apply to this document.4 categoriesBiodegradable plastic shopping bags can be divided into biodegradable plastic shopping bags for direct food contact and non-food Biodegradable plastic shopping bags for contact.5 requirements5.1 Identification 5.1.1 Non-food contact biodegradable plastic shopping bags Biodegradable plastic shopping bags for non-food contact should be clearly marked with "Biodegradable plastics for non-food contact Shopping bag", in accordance with the requirements of GB/T 21660 to identify the name, standard number, specification, nominal weight, material and composition, manufacturer and environmental protection Statement and safety statement. 5.1.2 Biodegradable plastic shopping bags for direct food contact Biodegradable plastic shopping bags for direct food contact should clearly indicate "plastic shopping bags for direct food contact" on the plastic shopping bags. According to the requirements of GB/T 21660, the identification name, standard number, thickness and size specification, nominal load, material and composition, manufacturer and ring Warranty statement and safety statement. 5.2 Dimensional deviation 5.2.1 Thickness and deviation The thickness of the biodegradable plastic shopping bag should not be less than 0.015mm. The thickness limit deviation and average deviation should meet the requirements of Table 1. Table 1 Thickness deviation 5.2.2 Width deviation The width deviation of the biodegradable plastic shopping bag should meet the requirements of Table 2. 5.2.3 Length deviation The length deviation of the biodegradable plastic shopping bag shall meet the requirements of Table 3. 5.3 Senses 5.3.1 Color Biodegradable plastic shopping bags for direct food contact are generally resin-colored or white, and other colors are determined by the supplier and the buyer. The color of the biodegradable plastic shopping bag for non-food direct contact shall be negotiated between the supplier and the buyer. 5.3.2 Odor Biodegradable plastic shopping bags should not have obvious smell. 5.3.3 Appearance The bag film should be uniform and flat, and there should be no air bubbles, perforations (excluding design vents), poor plasticization, fish-eye stiffness, and silk Defects such as lines, hanging lines, wrinkles (not including creases caused by normal folding such as hemming). 5.3.4 Printing quality 5.3.4.1 Printing appearance For printed biodegradable plastic shopping bags, the printing ink should be uniform, and the patterns and text should be clear and complete. 5.3.4.2 Printing peel force The printing peel rate should be less than 20%. 5.4 Physical and mechanical properties The physical and mechanical properties should meet the requirements of Table 4 and Table 5. Table 4 Physical and mechanical properties 5.5 Biodegradability For single-component materials, the biodegradation rate of materials processed from a single polymer should be ≥60%. If the material is a mixture, it should meet the following requirements. a) Organic components (volatile solid content) should be ≥51%; b) The organic components in the mixture with a component content of < 1% should also be biodegradable, but proof of biodegradability may not be provided, and the total amount Should be < 5%; c) The biodegradation rate should be ≥60%, and the biodegradation rate of the organic components in the material should be ≥60%. Or, of a mixture The relative biodegradation rate should be ≥90%.6 Test method6.1 Sampling In the sample of the whole packaging plastic shopping bag, first remove the two samples on the upper and lower surfaces, and extract or cut a sufficient number of samples from the remaining samples. Like, experiment. 6.2 Condition adjustment and test environment According to the standard environment specified in GB/T 2918 (temperature 23℃±2℃, relative humidity 50%±10%), and proceed under this condition Line test. The state adjustment time should not be less than 4h. 6.3 Thickness deviation 6.3.1 Measurement Open the biodegradable plastic shopping bag, cut it open, spread it out on one side, and measure the thickness of the film on one side with a thickness gauge. According to GB/T 6672 Measure 8 points along the width of the biodegradable plastic shopping bag, and calculate the recorded data according to formula (1) and formula (2) Thickness limit deviation and thickness average deviation. When the biodegradable plastic shopping bag has embossing or embossing, the embossing or embossing should be flattened Determine the thickness of the flattened area. 6.3.2 Calculation of thickness limit deviation 6.3.3 Calculate the average thickness deviation e-e0 6.4 Width and length deviation 6.4.1 Measurement Lay the biodegradable plastic shopping bag on a horizontal surface (open the fold when there is a fold), and measure it according to the regulations of GB/T 6673 Use a ruler with a graduation of 1mm to measure the effective use area of the plastic bag at equal intervals along the length and width of the sample. Measure the width and length at least 4 times. When the biodegradable plastic shopping bag has folds, open the folds, spread the bag horizontally, and measure the overall width of the bag. Calculate the width limit deviation according to formula (3) with the recorded data, and calculate the length limit deviation according to formula (4). 6.4.2 Calculating the width limit deviation 6.4.3 Calculate the length limit deviation 6.5 Senses 6.5.1 Color and appearance Check visually under natural light. 6.5.2 Odor Carry out under normal indoor conditions. 6.5.3 Printing quality 6.5.3.1 Printing appearance Under natural light, visually inspect the uniformity of the printed ink, the clarity and integrity of the pattern and text. 6.5.3.2 Printing peel force Samples were cut from the more parts of the bag printing ink to test the printing peel rate. The printed side of the sample is facing up, and the sample The four sides are fixed on a smooth table surface to expose the test part. 100mm×100mm.Do not touch the measuring part with your hands during the operation. An adhesive tape with a 180° peel strength of 6.5N/15mm±1.0N/15mm, take a width of 15mm and a length of 175mm, and stick it on the printed surface of the sample. Fold it into 180° at 75mm, and roll it back and forth once with a 1kg roller at the sticking position. Then quickly peel off by hand, peel off Then use the 0.5mm steel ruler to measure the peeling area and residual area of printing ink, and calculate the peeling rate of printing ink according to formula (5). Number of samples Quantity 3, take the average value, and round the result to 1%. 6.6 Physical and mechanical properties 6.6.1 Lifting test 6.6.1.1 Test machine Bag fatigue testing machine, amplitude 30mm±2mm, frequency 2Hz~3Hz. 6.6.1.2 Test Put a simulant (such as sand, rice grains, etc.) that is equivalent to the nominal weight and whose volume does not exceed two-thirds of the effective volume of the bag into the bag. After hanging on the testing machine, test 1800 times, observe whether the bag body and the carrying strap are damaged, and record the observed phenomenon. The number of samples is 3. 6.6.2 Drop test Put a simulant (such as sand, rice grains, etc.) into the bag that is equivalent to the nominal bearing weight and whose volume does not exceed two-thirds of the effective volume of the bag. Exclude the vacant air, and seal the bag with adhesive tape while keeping the upper bag film fully slack, and the bag bottom is free at a height of 0.5m from the ground When falling, the test ground should be a smooth, flat and hard ground. Observe whether there are simulants (such as sand, rice, etc.) leaking out, and record the observed phenomena. test The number of samples is 3. For some plastic shopping bags that need to be partially heat-sealed due to special functions, the protruding bags cause stress concentration, such as partitions or supports If the objects in the bag are partially heat-sealed shopping bags (such as partially heat-sealed beverage bags, etc.), this test is not performed. 6.6.3 Water leakage test Slowly fill the plastic shopping bag with 500mL volume of clean water, the water temperature is 23℃±2℃, hang it and keep the bottom horizontal and let it stand for 1min. Check whether there are drops of water dripping from the bottom of the plastic shopping bag, and record the observed phenomenon. The number of samples is 3. For some plastic shopping bags that do not require water leakage due to special functional design requirements, this test is not performed. 6.6.4 Sealing strength test The sealing strength is carried out according to QB/T 2358, and the test speed is 300mm/min±50mm/min. 6.6.5 Dart impact test The falling dart impact test is carried out according to the provisions of Method A in GB/T 9639.1-2008, using a single piece of specimen, not using the step method, and using a fixed drop The dart quality determination method does not damage the sample quantity. The quality of falling darts is shown in Table 6.The number of samples is 10 pieces. Table 6 Dart drop quality 6.6.6 Biodegradability 6.6.6.1 Organic components (volatile solid content) Volatile solid content is determined according to GB/T 9345.1. 6.6.6.2 Biodegradation rate According to GB/T 19277.1 (in arbitration, use this standard) or GB/T 19277.2 or GB/T 19276.1 or GB/T 19276.2 carried out.7 Inspection rules7.1 Batch Products are checked and accepted in batches. Products produced continuously with the same brand of raw materials, the same specifications, the same formula, and the same process shall not exceed One batch after 5t. 7.2 Inspection classification 7.2.1 Factory inspection The factory inspection items are sensory, thickness, width, length, drop and water leakage tests. 7.2.2 Type inspection Type inspection items are all items in the requirements except for biodegradability. Type inspection should be carried out in one of the following situations. a) The first batch of production; b) When the variety of raw materials, product structure, production process or equipment changes; c) When there is a big difference between the factory inspection result and the last type inspection result; d) When production is stopped for more than 6 months and production is resumed; e) When continuous production for one year; f) When required by relevant national quality supervision departments. 7.3 Sampling plan 7.3.1 Logo, size deviation, sensory (except printing quality) According to GB/T 2828.1, the inspection level (IL) in Table 1 is the general inspection level II and the acceptance quality limit (AQL) in Table 3-A is 6.5. Determine, compare the number of inspection batches, and conduct secondary sampling inspection and judgment according to the sampling number determined in the plan in Table 7.Each unit is packaged as a copy Unit, unit packaging can be box, bundle, bag, unit, etc. During the test, a bag sample is randomly taken from each unit package for sampling inspection. 7.3.2 Printing quality, physical and mechanical properties, biodegradability and food safety requirements Randomly take test samples from the drawn samples for inspection. 7.4 Judgment rules 7.4.1 Determination of qualified items 7.4.1.1 Logo, size deviation, sensory (except printing quality) Identification, size deviation, sensory (except printing quality) unit sample inspection results are judged according to 5.1, 5.2, 5.3. The batch inspection results of identification, size deviation, sensory (except printing quality) shall be judged in accordance with Table 7.The first sampling inspection In the first sample quantity given by the Ministry, if the quantity of nonconforming products is less than or equal to the first acceptance number, then the item is deemed qualified; if the quantity of nonconforming products is large If it is equal to or equal to the first rejection number, the item will be judged as unqualified; if the number of unqualified products is between the first acceptance number and the first rejection number, the Secondary sampling inspection. After the second sample quantity given in the second sampling inspection, if the number of unqualified products in the two sampling inspections is less than Or equal to the second acceptance number, then the item is judged as qualified; if the cumulative number of unqualified products for two sampling inspections is greater than or equal to the second rejection number, then the item is judged Item is not qualified. 7.4.1.2 Printing quality, physical and mechanical properties and biodegradability In the sensory, the judgment of the index test results of printing quality, physical and mechanical properties and biodegradability is carried out according to 5.3, 5.4, and 5.5. If the inspection results of all indicators of the batch are all qualified, the item will be judged as qualified; if there are unqualified indicators, double samples should be taken from the original batch to verify the failures. Re-inspection of the qualification indicators is performed, and the re-inspection results are all qualified and the item is deemed qualified; otherwise, the item is deemed unqualified. 7.4.1.3 Food safety requirements If the food safety requirements of biodegradable plastic shopping bags in direct contact with food are all qualified, the item will be deemed qualified; otherwise, the item will be deemed qualified. Unqualified. 7.4.2 Determination of qualified batches ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 38082-2019_English be delivered?Answer: Upon your order, we will start to translate GB/T 38082-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 38082-2019_English with my colleagues?Answer: Yes. 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