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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 43546-2023 |
Self-heating substance screening test method 自热物质筛选试验方法 |
China National Standards bstan |
 English PDF |
| GB 43352-2023 |
Express packaging heavy metals and specific substance limits 快递包装重金属与特定物质限量 |
China National Standards bstan |
English PDF |
| GB 18585-2023 |
Interior Decoration Materials Limits of Hazardous Substances in Wallpaper 室内装饰装修材料 壁纸中有害物质限量 |
China National Standards bstan |
English PDF |
| GB/T 43396-2023 |
Sensory Analysis Guidelines for Substantiation of Product Sensory Claims 感官分析 产品感官宣称证实导则 |
China National Standards bstan |
English PDF |
| GB 31604.47-2023 |
National food safety standards Food contact materials and products Determination of fluorescent substances in paper, cardboard and paper products 食品安全国家标准 食品接触材料及制品 纸、纸板及纸制品中荧光性物质的测定 |
China National Standards bstan |
English PDF |
| GB/T 43175-2023 |
Prothioconazole technical substance 丙硫菌唑原药 |
China National Standards bstan |
English PDF |
| GB/T 43118-2023 |
Corrosion of metals and alloys Test method for high-temperature corrosion of metallic materials under the action of deposits of salt, ash or other substances 金属和合金的腐蚀 金属材料在盐、灰烬或其他物质的沉积物作用下进行高温腐蚀的试验方法 |
China National Standards bstan |
English PDF |
| GB/T 43008-2023 |
Leather Chemical Testing Guidelines for Testing of Key Chemical Substances 皮革 化学试验 关键化学物质的测试指南 |
China National Standards bstan |
English PDF |
| GB/T 42998-2023 |
Method for determination of prohibited and restricted substances in furniture products and their materials Aldehydes and ketones 家具产品及其材料中禁限用物质测定方法 醛酮类化合物 |
China National Standards bstan |
English PDF |
| GB/T 42996.2-2023 |
Guidelines for the Control of Key Chemical Substances in Furniture Products Part 2: Upholstered Furniture 家具产品中重点化学物质管控指南 第2部分：软体家具 |
China National Standards bstan |
English PDF |
| GB/T 42996.1-2023 |
Guidelines for the Control of Key Chemical Substances in Furniture Products Part 1: Wooden Furniture 家具产品中重点化学物质管控指南 第1部分：木家具 |
China National Standards bstan |
English PDF |
| GB/T 42992.1-2023 |
Chemicals Simulation tests to evaluate the biodegradability of chemical substances discharged from wastewater General principles 化学品 评价废水中排放化学物质的生物降解性的模拟试验 通则 |
China National Standards bstan |
English PDF |
| GB/T 29493.9-2023 |
Determination of harmful substances in textile dyeing and finishing auxiliaries Part 9: Determination of acrylamide substances 纺织染整助剂中有害物质的测定 第9部分：丙烯酰胺类物质的测定 |
China National Standards bstan |
English PDF |
| GB/T 29493.4-2023 |
Determination of harmful substances in textile dyeing and finishing auxiliaries Part 4: Determination of polycyclic aromatic hydrocarbons (PAHs) 纺织染整助剂中有害物质的测定 第4部分：多环芳烃化合物（PAHs）的测定 |
China National Standards bstan |
English PDF |
| GB/T 29493.3-2023 |
Determination of harmful substances in textile dyeing and finishing auxiliaries Part 3: Determination of organotin compounds 纺织染整助剂中有害物质的测定 第3部分：有机锡化合物的测定 |
China National Standards bstan |
English PDF |
| GB/T 34033.3-2023 |
Ships and Offshore Technology Risk Assessment of Ship Antifouling Systems Part 3: Methods for Human Health Risk Assessment of Antifouling Active Substances During the Application and Removal of Marine Antifouling Primers 船舶与海上技术 船舶防污底系统风险评估 第3部分：船用防污底涂料应用和去除过程中防污活性物质的人体健康风险评估方法 |
China National Standards bstan |
English PDF |
| GB/T 42688-2023 |
Requirements for Discharge and Disposal of Residues of Toxic Liquid Substances from Ships 船舶有毒液体物质残余物排放处理要求 |
China National Standards bstan |
English PDF |
| GB 7300.1002-2022 |
Feed additives - Part 10: Flavoring and attractant substances - Allicin 饲料添加剂 第10部分：调味和诱食物质 大蒜素 |
China National Standards bstan |
English PDF |
| GB 28489-2022 |
Limits of Hazardous Substances in Musical Instruments 乐器有害物质限量 |
China National Standards bstan |
English PDF |
| GB/T 41683-2022 |
Determination of the banned substance colchicine and its derivative colcemid in cosmetics by liquid chromatography-tandem mass spectrometry 化妆品中禁用物质秋水仙碱及其衍生物秋水仙胺的测定 液相色谱-串联质谱法 |
China National Standards bstan |
English PDF |
| GB/T 41710-2022 |
Determination of banned substances lincomycin and clindamycin in cosmetics by liquid chromatography-tandem mass spectrometry 化妆品中禁用物质林可霉素和克林霉素的测定 液相色谱-串联质谱法 |
China National Standards bstan |
English PDF |
| GB/T 41725-2022 |
Guidelines for Establishing Limits of Chemical Substances in Consumer Products 消费品中化学物质限量制定导则 |
China National Standards bstan |
English PDF |
| GB/T 41693-2022 |
Guidelines for the Evaluation and Determination of Chemical Substances of Very High Concern 高关注化学物质评估判定导则 |
China National Standards bstan |
English PDF |
| GB/T 40231-2021 |
Restricted substance in electrical and electronic products—Determination of hexavalent chromium—Ion chromatography method 电子电气产品中的限用物质 六价铬的测定方法 离子色谱法 |
China National Standards bstan |
English PDF |
| GB/T 39652.4-2021 |
Emergency response guideline for transportation of dangerous goods—Part 4:List of substance which in contact with water emit toxic gases 危险货物运输应急救援指南 第4部分：遇水反应产生毒性气体的物质目录 |
China National Standards bstan |
English PDF |
| GB/T 39927-2021 |
Determination of prohibited substances veratrine in cosmetics—High performance liquid chromatography 化妆品中禁用物质藜芦碱的测定 高效液相色谱法 |
China National Standards bstan |
English PDF |
| GB/T 39804-2021 |
Method for determination of leachable harmful substances in wall materials 墙体材料中可浸出有害物质的测定方法 |
China National Standards bstan |
English PDF |
| GB/T 41078-2021 |
Test methods for harmful substances in building waterproofing materials 建筑防水材料有害物质试验方法 |
China National Standards bstan |
English PDF |
| GB/T 40894-2021 |
Determination of prohibited substances thiamazole in cosmetics—High performance liquid chromatography 化妆品中禁用物质甲巯咪唑的测定 高效液相色谱法 |
China National Standards bstan |
English PDF |
| GB/T 29493.2-2021 |
Determination of harmful substances in textile dyeing and finishing auxiliaries—Part 2: Determination of perfluorinated compounds (PFCs) 纺织染整助剂中有害物质的测定 第2部分：全氟化合物（PFCs）的测定 |
China National Standards bstan |
English PDF |
| GB/T 29493.1-2021 |
Determination of harmful substances in textile dyeing and finishing auxiliaries -- Part 1: Determination of the prohibited or restricted flame retardants 纺织染整助剂中有害物质的测定 第1部分：禁限用阻燃剂的测定 |
China National Standards bstan |
English PDF |
| GB/T 40906-2021 |
Methods for the determination of prohibited substances in furniture products and related materials—Certain phthalate esters 家具产品及其材料中禁限用物质测定方法 邻苯二甲酸酯增塑剂 |
China National Standards bstan |
English PDF |
| GB/T 40904-2021 |
Methods for the determination of prohibited substances in furniture products and related materials—Azo dyes 家具产品及其材料中禁限用物质测定方法 偶氮染料 |
China National Standards bstan |
English PDF |
| GB/T 40971-2021 |
Methods for the determination of prohibited substance in furniture products and related materials—Polycyclic aromatic hydrocarbons 家具产品及其材料中禁限用物质测定方法 多环芳烃 |
China National Standards bstan |
English PDF |
| GB/T 40908-2021 |
Methods for the determination of prohibited substances in furniture products and related materials—Flame retardants 家具产品及其材料中禁限用物质测定方法 阻燃剂 |
China National Standards bstan |
English PDF |
| GB/T 40907-2021 |
Methods for the determination of prohibited substances in furniture products and related materials -- 2, 4-diaminotoluene and 4, 4'-methylenedianiline 家具产品及其材料中禁限用物质测定方法? 2,4-二氨基甲苯、4，4’-二氨基二苯甲烷 |
China National Standards bstan |
English PDF |
| GB/T 39560.8-2021 |
Determination of certain substances in electrical and electronic products—Part 8:Phthalates in polymers by gas chromatography-mass spectrometry (GC-MS),gas chromatography-mass spectrometry using a pyrolyzer/thermaldesorption accessory (Py/TD-GC-MS) 电子电气产品中某些物质的测定 第8部分：气相色谱-质谱法（GC-MS）与配有热裂解/热脱附的气相色谱-质谱法 （Py/TD-GC-MS）测定聚合物中的邻苯二甲酸酯 |
China National Standards bstan |
English PDF |
| GB/T 39560.702-2021 |
Determination of certain substances in electrical and electronic products—Part 7-2:Hexavalent chrome—Determination of hexavalent chrome[Cr(VI)]in polymers and electronics by the colormetric method 电子电气产品中某些物质的测定 第7-2部分：六价铬 比色法测定聚合物和电子件中的六价铬[Cr（VI）] |
China National Standards bstan |
English PDF |
| GB/T 39560.5-2021 |
Determination of certain substances in electrical and electronic products—Part 5: Cadmium，lead and chromium in polymers and electronics and cadmium and lead in metals by AAS，AFS，ICP-OES and ICP-MS 电子电气产品中某些物质的测定 第5部分： AAS、AFS、ICP-OES和ICP-MS法测定聚合物和电子件中镉、铅、铬以及金属中镉、铅的含量 |
China National Standards bstan |
English PDF |
| GB/T 39560.4-2021 |
Determination of certain substances in electrical and electronic products—Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS , ICP-OES and ICP-MS 电子电气产品中某些物质的测定 第4部分：CV-AAS、CV-AFS、ICP-OES和ICP-MS测定聚合物、金属和电子件中的汞 |
China National Standards bstan |
English PDF |
| GB/T 9098-2021 |
Methods for the determination of prohibited substances in furniture products and related materials—Certain phthalate esters 电冰箱用全封闭型电动机-压缩机 |
China National Standards bstan |
English PDF |
| GB 7300.1001-2020 |
Feed additive—Part 10：Flavouring and appetising substances—Sodium glutamate 饲料添加剂 第10部分：调味和诱食物质 谷氨酸钠 |
China National Standards bstan |
English PDF |
| GB/T 39059-2020 |
Determination of harmful substance emissions from synthetic sports surfaces—Environmental chambers method 运动场地合成材料面层有害物质释放量的测定 环境测试舱法 |
China National Standards bstan |
English PDF |
| GB 20300-2018 |
Safety specifications for road transportation vehicle of explosive substance and chemical toxic substance 道路运输爆炸品和剧毒化学品车辆安全技术条件《第1号修改单》 |
China National Standards bstan |
English PDF |
| GB/T 31009-2020 |
Foot protection—Critical substance requirements and test methods for footwear 足部防护 鞋（靴）限量物质要求及测试方法 |
China National Standards bstan |
English PDF |
| GB/T 18569.2-2020 |
Safety of machinery—Reduction of risks to health resulting from hazardous substances emitted by machinery—Part 2: Methodology leading to verification procedures 机械安全 减小由机械排放的有害物质对健康的风险 第2部分：生成验证流程的方法 |
China National Standards bstan |
English PDF |
| GB/T 18569.1-2020 |
Safety of machinery—Reduction of risks to health resulting from hazardous substances emitted by machinery—Part 1: Principles and specifications for machinery manufacturers 机械安全 减小由机械排放的有害物质对健康的风险 第1部分：用于机械制造商的原则和规范 |
China National Standards bstan |
English PDF |
| GB 7300.203-2020 |
Feed additive—Part 2：Vitamins, provitamins and chemically well-defined substances having similar effect—Betaine 饲料添加剂 第2部分：维生素及类维生素 甜菜碱 |
China National Standards bstan |
English PDF |
| GB/T 38724-2020 |
Furniture harmful substances—Test method for radioactivity 家具中有害物质 放射性的测定 |
China National Standards bstan |
English PDF |
| GB 38850-2020 |
List for materials and restricted substances in disinfectant + No.1 Modification Sheet 消毒剂原料清单及禁限用物质+第1号修改单 |
China National Standards bstan |
English PDF |
| GB/T 38529-2020 |
Requirements of concentration limits for restricted substances in tyres 轮胎中限用物质的限量要求 |
China National Standards bstan |
English PDF |
| GB 30981-2020 |
Limit of harmful substances of industrial protective coatings 工业防护涂料中有害物质限量 |
China National Standards bstan |
English PDF |
| GB/T 39560.701-2020 |
Determination of certain substances in electrical and electronic products—Part 7-1:Hexavalent chromium—Presence of hexavalent chromium [Cr(VI)] in colourless and coloured corrosion-protected coatings on metals by the colorimetric method 电子电气产品中某些物质的测定 第7-1部分：六价铬 比色法测定金属上无色和有色防腐镀层中的六价铬[Cr(VI)] |
China National Standards bstan |
English PDF |
| GB/T 39560.6-2020 |
Determination of certain substances in electrical and electronic products—Part 6: Polybrominated biphenyls and polybrominated diphenyl ethers in polymers by gas chromatography-mass spectrometry（GC-MS） 电子电气产品中某些物质的测定 第6部分：气相色谱-质谱仪（GC-MS）测定聚合物中的多溴联苯和多溴二苯醚 |
China National Standards bstan |
English PDF |
| GB/T 39560.301-2020 |
Determination of certain substances in electrical and electronic products—Part 3-1: Screening lead, mercury, cadmium, total chromium and total bromine by X-ray fluorescence spectrometry 电子电气产品中某些物质的测定 第3-1部分：X射线荧光光谱法筛选铅、汞、镉、总铬和总溴 |
China National Standards bstan |
English PDF |
| GB/T 39560.2-2020 |
Determination of certain substances in electrical and electronic products—Part 2: Disassembly，disjointment and mechanical sample preparation 电子电气产品中某些物质的测定 第2部分：拆解、拆分和机械制样 |
China National Standards bstan |
English PDF |
| GB/T 39560.1-2020 |
Determination of certain substances in electrical and electronic products—Part 1: Introduction and overview 电子电气产品中某些物质的测定 第1部分：介绍和概述 |
China National Standards bstan |
English PDF |
| GB/T 39499-2020 |
Technical guideline for derivation of health protection zone about fugitive emission of atmospheric harmful substances 大气有害物质无组织排放卫生防护距离推导技术导则 |
China National Standards bstan |
English PDF |
| GB 18582-2020 |
Limit of harmful substances of architectural wall coatings 建筑用墙面涂料中有害物质限量 |
China National Standards bstan |
English PDF |
| GB 24409-2020 |
Limit of harmful substances of vehicle coatings 车辆涂料中有害物质限量 |
China National Standards bstan |
English PDF |
| GB 18581-2020 |
Limit of harmful substances of woodware coatings 木器涂料中有害物质限量 |
China National Standards bstan |
English PDF |
| GB/T 38316-2019 |
Test method of explosive power for organic peroxides and self-reactive substances 有机过氧化物和自反应物质作功能力的试验方法 |
China National Standards bstan |
English PDF |
| GB 38469-2019 |
Limit of harmful substances of marine coatings 船舶涂料中有害物质限量 |
China National Standards bstan |
English PDF |
| GB 38468-2019 |
Limit of harmful substances of interior floor coatings 室内地坪涂料中有害物质限量 |
China National Standards bstan |
English PDF |
| GB/T 38316-2019 |
Test method of explosive power for organic peroxides and self-reactive substances 有机过氧化物和自反应物质作功能力的试验方法 |
China National Standards bstan |
English PDF |
| GB 38400-2019 |
Limitation requirements of toxic and harmful substance in fertilizers 肥料中有毒有害物质的限量要求 |
China National Standards bstan |
English PDF |
| GB 7300.202-2019 |
Feed additives－Part 2：Vitamins, provitamins and chemically well-defined substances having similar effect－Vitamin D3 oily form 饲料添加剂 第2部分：维生素及类维生素 维生素D3油 |
China National Standards bstan |
English PDF |
| GB 7300.201-2019 |
Feed additives—Part 2：Vitamins,provitamins and chemically well-defined substances having similar effect—L-Ascorbyl-2-phosphate 饲料添加剂 第2部分：维生素及类维生素 L-抗坏血酸-2-磷酸酯盐 |
China National Standards bstan |
English PDF |
| GB/T 37876-2019 |
Guideline of conformity assessment for hazardous substances in electronic and electrical products 电子电气产品有害物质限制使用符合性评价通则 |
China National Standards bstan |
English PDF |
| GB/T 21242-2019 |
Fireworks—Test methods of qualitative determination of prohibitive and limitative substances 烟花爆竹 禁限用物质定性检测方法 |
China National Standards bstan |
English PDF |
| GB/T 20708-2019 |
Limit and determination of parts of harmful substances in textile dyeing and finishing auxiliaries 纺织染整助剂产品中部分有害物质的限量及测定 |
China National Standards bstan |
English PDF |
| GBZ/T 300.96-2018 |
Determination of toxic substances in workplace air - Part 96: sevoflurane, isoflurane and enflurane 工作场所空气有毒物质测定-第96部分：七氟烷、异氟烷和恩氟烷 |
China National Standards bstan |
English PDF |
| GBZ/T 300.164-2018 |
Determination of toxic substances in the workplace - Part 164: Diphenylmethane diisocyanate 工作场所空气有毒物质测定-第164部分：二苯基甲烷二异氰酸酯 |
China National Standards bstan |
English PDF |
| GBZ/T 300.163-2018 |
Determination of toxic substances in workplace air - Part 163: Toluene diisocyanate 工作场所空气有毒物质测定-第163部分：甲苯二异氰酸酯 |
China National Standards bstan |
English PDF |
| GBZ/T 300.162-2018 |
Determination of toxic substances in workplace air - Part 162: Benzoquinone 工作场所空气有毒物质测定-第162部分：苯醌 |
China National Standards bstan |
English PDF |
| GBZ/T 300.161-2018 |
Determination of toxic substances in the workplace - Part 161: Tribromomethane 工作场所空气有毒物质测定-第161部分：三溴甲烷 |
China National Standards bstan |
English PDF |
| GBZ/T 300.128-2018 |
Determination of toxic substances in workplace air - Part 128: methacrylates 工作场所空气有毒物质测定-第128部分：甲基丙烯酸酯类 |
China National Standards bstan |
English PDF |
| GBZ/T 300.116-2018 |
Determination of toxic substances in workplace air - Part 116: p-toluene 工作场所空气有毒物质测定-第116部分：对甲苯磺酸 |
China National Standards bstan |
English PDF |
| GBZ/T 300.106-2018 |
Determination of toxic substances in workplace air - Part 106: Chloroacetone 工作场所空气有毒物质测定-第106部分：氯丙酮 |
China National Standards bstan |
English PDF |
| GBZ/T 300.100-2018 |
Determination of toxic substances in workplace air - Part 100: Furfural and dimethoxymethane 工作场所空气有毒物质测定-第100部分：糠醛和二甲氧基甲烷 |
China National Standards bstan |
English PDF |
| GB/T 36421-2018 |
Restricted substances concerning printing inks for packaging materials 包装材料用油墨限制使用物质 |
China National Standards bstan |
English PDF |
| GB/T 36560-2018 |
Specifications for technical documentation for the conformity demonstration of electrical and electronic products with respect to the restriction of hazardous substances 电子电气产品有害物质限制使用符合性证明技术文档规范 |
China National Standards bstan |
English PDF |
| GB/T 36796-2018 |
Rubber latex gloves for food services—Limits for extractable substances 接触食品用胶乳手套 萃取物限量 |
China National Standards bstan |
English PDF |
| GB 20300-2018 |
Safety specifications for road transportation vehicle of explosive substance and chemical toxic substance 道路运输爆炸品和剧毒化学品车辆安全技术条件 |
China National Standards bstan |
English PDF |
| GB/T 35957-2018 |
Determination of prohibited substances cesium-137, cesium-134 in cosmetics—Gamma spectrometry 化妆品中禁用物质铯-137、铯-134的测定 γ能谱法 |
China National Standards bstan |
English PDF |
| GB/T 34698-2017 |
Rubber compounding ingredients—Determination of water soluble substance of silica，precipitated，hydrated—Electrolytic conductivity method 橡胶配合剂 沉淀水合二氧化硅水可溶物含量的测定 电导率法 |
China National Standards bstan |
English PDF |
| GB/T 34033.1-2017 |
Ships and marine technology—Risk assessment on anti-fouling systems on ships—Part 1: Marine environmental risk assessment method of biocidally active substances used for anti-fouling systems on ships 船舶与海上技术 船舶防污底系统风险评估 第1部分：船舶防污底系统用防污活性物质的海洋环境风险评估方法 |
China National Standards bstan |
English PDF |
| GB/T 34033.2-2017 |
Ships and marine technology—Risk assessment on anti-fouling systems on ships—Part 2:Marine environmental risk assessment method for anti-fouling systems on ships using biocidally active substances 船舶与海上技术 船舶防污底系统风险评估 第2部分：使用防污活性物质的船舶防污底系统的海洋环境风险评估方法 |
China National Standards bstan |
English PDF |
| GB/T 33918-2017 |
Fragrance/Flavor substances－Determination of peroxide value 香料 过氧化值的测定 |
China National Standards bstan |
English PDF |
| GB/T 33406-2016 |
Guidelines for threshold determination of Baijiu flavor substances 白酒风味物质阈值测定指南 |
China National Standards bstan |
English PDF |
| GB/T 33391-2016 |
Footwear—Critical substances potentially present in footwear and footwear components—Test method to quantitatively determine polycyclic aromatic hydrocarbons(PAH) in footwear materials 鞋类 鞋类和鞋类部件中存在的限量物质 多环芳烃(PAH)的测定 |
China National Standards bstan |
English PDF |
| GB/T 33390-2016 |
Footwear—Critical substances potentially present in footwear and footwear components—Test method to quantitatively determine dimethylformamide in footwear materials 鞋类 鞋类和鞋类部件中存在的限量物质 二甲基甲酰胺的测定 |
China National Standards bstan |
English PDF |
| GB 1903.23-2016 |
National food safety standard - Nutritional fortification substances in foods - Seleno-carrageenan 食品安全国家标准 食品营养强化剂 硒化卡拉胶 |
China National Standards bstan |
English PDF |
| GB 1903.22-2016 |
National food safety standard - Nutritional fortification substances in foods - Se-enriched edible fungi powder 食品安全国家标准 食品营养强化剂 富硒食用菌粉 |
China National Standards bstan |
English PDF |
| GB 1903.20-2016 |
National food safety standard - nutritional fortification substances in foods - thiamine nitrate 食品安全国家标准 食品营养强化剂 硝酸硫胺素 |
China National Standards bstan |
English PDF |
| GB 1903.19-2016 |
National food safety standard -Nutritional fortification substances in foods - Bone powder 食品安全国家标准 食品营养强化剂 骨粉 |
China National Standards bstan |
English PDF |
| GB 1903.18-2016 |
National food safety standard -Nutritional fortification substances in foods - Calcium citrate-malate 食品安全国家标准 食品营养强化剂 柠檬酸苹果酸钙 |
China National Standards bstan |
English PDF |
| GB 1903.16-2016 |
National food safety standard - Nutritional fortification substances in foods - Ferric pyrophosphate 食品安全国家标准 食品营养强化剂 焦磷酸铁 |
China National Standards bstan |
English PDF |
| GB 1903.14-2016 |
National food safety standard - Nutritional fortification substances in foods - Calcium citrate 食品安全国家标准 食品营养强化剂 柠檬酸钙 |
China National Standards bstan |
English PDF |
| GB/T 33352-2016 |
General rules of screening application of restricted substances in electrical and electronic products—X-Ray fluorescence spectrometry 电子电气产品中限用物质筛选应用通则 X射线荧光光谱法 |
China National Standards bstan |
English PDF |
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