GB/T 26913-2025 (GB/T 26913-2011) PDF EnglishUS$90.00 · In stock · Download in 9 seconds
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Similar standardsGB/T 26913-2011: Bamboo charcoal---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT26913-2011GB ICS 65.020 B 73 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Bamboo charcoal Issued on. SEPTEMBER 29, 2011 Implemented on. DECEMBER 1, 2011 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China Table of ContentsForeword... 3 1 Scope... 4 2 Normative references... 4 3 Terms and definitions... 4 4 Classification and mark... 5 5 Technical requirements... 6 6 Test Methods... 7 7 Inspection rules... 12 8 Logo, Label, Package and Storage... 13 Annex A... 15ForewordAnnex A of this standard is informative. This Standard was proposed by China's State Forestry Administration (SFA). This Standard shall be under the jurisdiction of National Technical Committee on (SAC/TC 263) Bamboo and Rattan of Standardization Administration of China. The participating drafting organizations of this standard. National Quality Supervision and Inspection Center of Green Products, Zhejiang Forestry College, International Centre For Bamboo and Rattan, Quzhou Minxin Charcoal Co., Ltd, Zhejiang Jianzhong Bamboo Charcoal Co., Ltd, Suichang Biyan Bamboo Charcoal Co., Ltd, Zhejiang Maitanwong Ecology Development Co., Ltd, Quzhou Modern Charcoal Industry Co., Ltd, Zhejiang Fulaisen Carbon Material Co., Ltd, Zhejiang Jiejiegao Charcoal Co., Ltd, Deqing Jiayi Charcoal Industry Co., Ltd, Ningbo Zheshang Bamboo Charcoal Co., Ltd, and Zhejiang Green Valley Charcoal Co., Ltd. The chief drafting staffs of this standard. Zhao Shukai, Zhang Wenbiao, Li Congfen, Li Jie, Liu Xin, Liu Liang, Zhang Dongsheng, Liu Xinxing, Yan Hua, Bao Ligen, Ding Jianzhong, Tu Zhilong, Fang Yunjian, Wu Quansheng, Wang Zhengyu, Ye Xinjun, Yu Genming, You Yazhen, and Lei Xiaojun. Bamboo charcoal1 ScopeThis Standard specifies the terms and definitions, classification and mark, technical requirements, test methods, inspection rules, logo, label and package of bamboo charcoal. This Standard shall be applicable to bamboo charcoal made of bamboo through the pyrolysis method.2 Normative referencesThe articles contained in the following documents have become part of this Standard when they are quoted herein. For the dated documents so quoted, all the modifications (excluding corrections) or revisions made thereafter shall not be applicable to this Standard. For the undated documents so quoted, the latest editions shall be applicable to this Standard. JJF 1070 Rules of Metrological Testing for Net Quantity of Products in Prepackages with Fixed Content3 Terms and definitionsFor the purpose of this standard, the following terms and definitions shall apply. 3.1 Bamboo charcoal Under the conditions of high temperature and limited oxygen (or isolated oxygen), the bamboo is heated through pyrolysis, so as to obtain the black solid. 3.2 Tube charcoal The tubular bamboo charcoal. 3.3 Flake charcoal The bamboo charcoal in bamboo-flake shape. 3.4 Broken charcoal After bamboo is gone through pyrolysis, the irregular-shape bamboo charcoal that is not processed.4 Classification and mark4.1 Classification 4.1.1 According to shape and size According to different shapes and sizes, bamboo charcoal is divided into tube charcoal, flake charcoal, broken charcoal, particle charcoal, and powder charcoal. Specifications of particle charcoal are shown in Table 1. 4.2 Mark Bamboo charcoals are marked by the difference of shape and size. Specific methods are shown in Table 2.5 Technical requirements5.1 Sense Black, odorless. 5.2 Deviation of net content Deviation of net content shall conform to Decree No.75 Measures for Metrological Supervision of Quantitatively Packed Commodities issued by General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China.6 Test Methods6.1 Sense PLACE bamboo charcoal sample on a piece of white paper. Under a bright environment, DETERMINE it by visual and smell methods. For tube charcoal and flake charcoal, 6.2 Net Content Executed according to the provisions of JJF 1070. 6.3 Determination of moisture content 6.3.1 Method summary Test sample with certain mass is dried to constant weight at (105±5)°C. TAKE the percentage OF mass-reduction amount TO the original test sample’s mass as the moisture content. 6.3.2 Instruments 6.3.4 Result calculation Determination results of the moisture content of bamboo charcoal are calculated according to formula (1). 6.4 Determination of ash content 6.4.1 Method summary At (800±20)°C, test sample with a certain mass is burned to constant weight (WEIGH after cooling). The percentage OF residue mass TO the original test sample’s mass is the ash content. 6.4.2 Instruments 6.4.3 Operating methods PUT the porcelain crucible into the high temperature electric furnace. BURN to constant weight at (800±20)°C. PLACE the crucible in a dryer for cooling to the room temperature (about 30min). WEIGH it (accurate to 0.1mg). 6.4.4 Result calculation Determination results of the ash content of bamboo charcoal are calculated according to formula (2). 6.5 Determination of volatile matter content 6.5.1 Method summary At the temperature of (850±20)°C, test sample with certain mass is heated for 7min with isolation from the air. The percentage OF lost mass TO the original test sample’s mass is the volatile matter content. 6.5.2 Instruments 6.5.3 Operating methods WEIGH 1g (accurate to 0.1mg) of test sample that has been crushed and gone through 0.315mm (55-mesh) sieve. PLACE in the porcelain crucible that has been burned to constant weight at (850±20)°C. 6.5.4 Result calculation Determination results of the ash content of bamboo charcoal are calculated according to formula (3). 6.6 Determination of the fixed carbon content 6.6.1 Method summary CALCULATE the fixed carbon content BY the mass of dried bamboo charcoal MINUS its ash content and volatile matter content. 6.6.2 Instruments 6.6.2.1 High temperature electric furnace. With temperature control device, thermocouple and high-temperature meter. 6.6.2.2 Porcelain crucible with cover. Volume of 30mL. 6.6.3 Operating methods CRUSH the analysis test sample until all can go through the 0.315mm-sieve (55 meshes). DRY to constant weight at the temperature of 102°C~105°C. The mass of the test sample shall not be less than 30g, for the use of testing the ash content and volatile matters. 6.6.4 Result calculation Determination results of the fixed carbon of bamboo charcoal are calculated according to formula (4).7 Inspection rules7.1 Lot-group rules and sampling method 7.1.1 Lot-group rule The products - among which the raw material and production conditions are basically consistent; and are manufactured on the same day or by the same shift - shall be deemed as a batch. Sampling shall be conducted according to batch number. 7.1.2 Sampling method 7.2 Inspection The product inspection is divided into ex-factory inspection and type inspection. 7.2.1 Ex-factory inspection Ex-factory inspection shall be conducted for each batch of products. Ex-factory inspection shall be performed by the quality inspection department of the manufacturer or entrusted to third-party inspection agency. Inspection items are the sense, net content deviation, and moisture. 7.2.2 Type inspection Inspection items of type inspection include all items required in this Standard. Type inspection shall be conducted, when there is one of the following conditions. 7.3 Decision rules If one inspection result does not comply with the requirements defined in this Standard, re-inspection shall be performed with double sampling. If the re-inspection result is still unqualified, this batch of products shall be decided as unqualified.8 Logo, Label, Package and Storage8.1 Logo and label Product logo shall include at least the following contents. product name and brand, type specification, net content, executive standard, production date, quality level, manufacturer name, production place, and factory address etc. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. |
