标准编号:	GB 24409-2020
中文名称:	车辆涂料中有害物质限量
英文名称:	Limit of harmful substances of vehicle coatings
中标分类:	G51    涂料
行业分类:	GB    国家标准
ICS分类:	87.040 87.040    涂料和清漆 87.040
发布机构:	国家市场监督管理总局 国家标准化管理委员会
发布日期:	2020-03-04
实施日期:	2020-12-1
标准状态:	valid
替代旧标准:	GB 24409-2009 汽车涂料中有害物质限量
翻译语言:	英文
文件格式:	PDF
中文字符数:	21000 字
翻译价格(元):	730.0
交付时间:	付款后 1 个工作日

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. All technical contents of this standard are mandatory. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB 24409-2009 Limit of harmful substances of automobile coatings. In addition to editorial changes, the following main technical changes have been made with respect to GB 24409-2009: ——The scope of this standard is modified (see clause 1; clause 1 of Edition 2009); ——The normative reference GB/T 1250 is deleted; normative references GB/T 8170-2008, GB/T 9754-2007, GB/T 9758.5-1988, GB/T 9760-1988, GB/T 23985-2009, GB/T 23986-2009, GB/T 23990-2009, GB/T 23992-2009, GB/T 30647-2014 and GB/T 34675-2017 are added (see clause 2; clause 2 of Edition 2009); ——The definitions of "volatile organic compound" and "volatile organic compound content” are modified; the terms and definitions of "road vehicle", "rail transit vehicle", "power-driven vehicle", "passenger car", "bus(vehicle)", "goods vehicle", "powered car train-set", "railway vehicle", "passenger car (railway vehicle)", "urban rail transit vehicle", "wagon", "special motor vehicle", "low-speed vehicle", "trailer", "primer", "primer surfacer", "varnish", "effect pigment", "high decorative coatings including effect pigment" and "application condition” are added (see clause 3; clause 3 of Edition 2009); ——The product classification is modified (see clause 4; clause 4 of Edition 2009); ——The “variety of coating” of solvent-based coatings and the limit of VOC content are modified (see Table 2; Table 1 of Edition 2009); ——The limits of VOC contents in water-based coatings and radiation curable coatings are added (see Tables 1 and 3); ——The limit of the total content of toluene and xylene (including ethylbenzene) in solvent-based coatings is modified; the control items for the total content of halohydrocarbon in solvent-based coatings are added (see Table 4; Table 1 of Edition 2009); ——The control items for the total content of benzene series in water-based coatings and water-based radiation curable coatings are added (see Table 4); ——The control items for benzene content, total content of toluene and xylene (including ethylbenzene), total content of halohydrocarbon and total content of glycol ether and ester ether in non-water-based radiation curable coatings are added (see Table 4); ——The controlled varieties of glycol ether and ester ether are modified (see clause 5; clause 5 of Edition 2009); ——The test methods for “VOC content”, “benzene content”, “total content of toluene and xylene (including ethylbenzene)”, “total content of glycol ether and ester ether” and “content of heavy metal” are modified; the test methods for “total content of benzene series” and “total content of halohydrocarbon” are added (see 6.2; 6.2 of Edition 2009); ——Implementation of this standard is added (see clause 9). This standard was proposed by and is under the jurisdiction of the Ministry of Industry and Information Technology of the People's Republic of China. The previous edition of this standard is as follows: ——GB 24409-2009. Limit of harmful substances of vehicle coatings 1 Scope This standard specifies the product classification, requirements, test methods, inspection rules, marks for package and implementation of this standard involved in the allowable limit of harmful substances of various vehicle coatings to human body and environment. This standard is applicable to, except for putties, various coatings of automobile manufacturer, automotive refinish coatings, as well as the coatings for rail transit vehicle, motorcycle (including electric motorcycles), bicycles (including electric bicycle) and other types of vehicles (including special motor vehicle, low-speed vehicle and trailer), and those for vehicle parts. This standard is not applicable to coatings of tractor transport units, wheeled mobile machinery for special purpose and military vehicles. 2 Normative references The following referenced documents are indispensable for the application 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 1725-2007 Paints, varnishes and plastics - Determination of non-volatile-matter content GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling GB/T 6682-2008 Water for analytical laboratory use - Specification and test methods GB/T 6750-2007 Paints and varnishes - Determination of density - Pyknometer method GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgment of limiting values GB/T 9750 Marks for package of coating products GB/T 9754-2007 Paints and varnishes - Determination of specular gloss of non-metallic paint films at 20°, 60°and 85° GB/T 9758.5-1988 Paints and varnishes - Determination of “soluble” metal content - Part 5: Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form - Diphenylcarbazide spectrophotometric method GB/T 9760-1988 Paints and varnishes - Preparation of acid extracts from paints in liquid or powder form GB/T 23985-2009 Paints and varnishes - Determination of volatile organic compound (VOC) content - Difference method GB/T 23986-2009 Paints and varnishes - Determination of volatile organic compound (VOC) content - Gas-chromatographic method GB/T 23990-2009 Determination of the contents of benzene, toluene, ethylbenzene and xylene in coatings by gas chromatography GB/T 23992-2009 Determination of chlorhydrocarbon content in coatings - Gas chromatographic method GB/T 30647-2014 Determination of harmful elements total content of coatings GB/T 34675-2017 Determination of volatile organic compound (VOC) content in radiation curable coatings 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 road vehicle vehicles, including motor vehicles and non-vehicles, that are designed and manufactured to carry people, transport items, or perform special operations on the road and are legally permitted to travel on the road [GA 802-2014, definition 3.1] 3.2 rail transit vehicle vehicles that need to travel on specific tracks, including powered car train-sets, passenger cars (railway vehicles), urban rail transit vehicles and wagons 3.3 power-driven vehicle wheeled vehicles driven or drawn by power sets on roads for carrying people, transporting items, or performing special engineering operations, include vehicles and tractor-trailer combination, motorcycles, tractor transport units, wheeled mobile machinery for special purpose and trailers [GB 7258-2017, definition 3.1] 3.4 passenger car vehicles with a maximum of nine seats (including the driver's seat), which are designed and manufactured primarily for carrying passengers as well as their carry-on baggage and/or temporary items and which may be equipped with certain special equipment or appliances or used to draw a center axle trailer [GB 7258-2017, definition 3.2.1.1] 3.5 bus(vehicle) vehicles with a maximum of nine seats (including the driver's seat), which are designed and manufactured primarily for carrying passengers as well as their carry-on baggage, and which, based on the presence or absence of standing passenger area, may be divided into buses with/without standing passenger areas [GB 7258-2017, definition 3.2.1.3] 3.6 goods vehicle vehicles designed and manufactured primarily for carrying goods or drawing trailers, which include: a) vehicles which are equipped with special equipment or appliances but mainly used for carrying goods; b) vehicles refitted from non-enclosed wagons, which, though equipped with special equipment or appliances, are not classified as special motor vehicles Note: enclosed wagon refers to a one/two box type goods vehicle with the loading part structured into a closed compartment and integrated with the cab [GB 7258-2017, definition 3.2.2] 3.7 powered car train-set train-set consisting of a powered car and a trailer (and sometimes a control car) used in a fixed grouping [GB/T 4549.1-2004, definition 2.94] 3.8 railway vehicle; railway car unit vehicles used on railway tracks for transporting passengers and goods, which are, for such purpose or by principle, grouped for use in passenger and freight trains [GB/T 4549.1-2004, definition 2.1] 3.9 carriage; passenger car; coach railway vehicle vehicles used for carrying passengers, which are, for such purpose or by principle, grouped for use in passenger trains [GB/T 4549.1-2004, definition 2.2] 3.10 urban rail transit vehicle vehicles used for urban rail transit, a vehicle transport system using the track structure for load bearing and guidance, and according to the requirements of the overall planning of urban transportation, equipped with a fully or partially closed dedicated track line, which, generally in the form of a train or single vehicle, carry a considerable number of passengers, and is a mean for public transportation, including metro system, light rail transit system, monorail system, tram, maglev system, automated guideway transit system, and urban rail rapid transit system 3.11 wagon; freight car vehicles used for carrying goods, which are, for such purpose or by principle, grouped for use in freight trains, and which can be divided into general train and special-purpose freight car by purpose [GB/T 4549.1-2004, definition 2.37] 3.12 special motor vehicle vehicles equipped with special equipment or appliances (excluding those, other than fire engines, that have more than nine seats (including driver's seat)), which are designed and manufactured for use in engineering (including health care) operations, such as crane truck, fire engine, concrete pump truck, wrecker, aerial platform vehicle, sweeping machine, suction-type sewer scavenger, wagon drill, instrument truck, inspection van, monitoring vehicle, power van, communication car, television car, blood collecting vehicle, medical vehicle and physical examination hospital car [GB 7258-2017, definition 3.2.3] 3.13 low-speed vehicle generic term for tri-wheel vehicles and low-speed goods vehicles Note: Tri-wheel vehicle refers to a three-wheeled goods vehicle with a maximum design speed of less than or equal to 50km/h; low-speed goods vehicle refers to a four-wheeled goods vehicle with a maximum design speed of less than 70km/h [GB 7258-2017, definition 3.2.2.2] 3.14 trailer unpowered road vehicle designed and manufactured to be drawn by vehicles or tractors for normal use on roads, including drawbar trailers, center axle trailers and semi-trailers, which are used for carrying goods or for special purposes [GB 7258-2017, definition 3.3] 3.15 primer coatings directly applied to the substrate in case of multi-layer coating 3.16 primer surfacer coating applied between the base coating (putty layer) and the surface coating in case of multi-layer coating 3.17 base coat paints required to be coated with varnishes on the surface 3.18 solid color paint paint that does not contain effect pigments such as metal or pearl 3.19 solid color paint without clear coat solid color paint not required to be coated with varnishes on the surface 3.20 varnish; clear coat coatings that do not contain coloring substances

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 5 Requirements 6 Test methods 7 Inspection rules 8 Marks for package 9 Implementation of this standard Annex A (Normative) Determination of moisture content - Gas chromatographic method Annex B (Normative) Determination of content of hexavalent chromium (Cr6+) - Spectrophotometry Bibliography

车辆涂料中有害物质限量 1范围 本标准规定了各类车辆涂料中对人体和环境有害的物质容许限量所涉及的产品分类、要求、测试方法、检验规则、包装标志、标准的实施。 本标准适用于除腻子以外的各类汽车原厂涂料、汽车修补用涂料、轨道交通车辆涂料、摩托车(含电动摩托车)涂料、自行车(含电动自行车)涂料、其他车辆(专项作业车、低速汽车、挂车等)涂料、车辆用零部件涂料。 本标准不适用于拖拉机运输机组用涂料、轮式专用机械车用涂料、军用车辆涂料。 2规范性引用文件 下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是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/T1725—2007色漆、清漆和塑料 不挥发物含量的测定 GB/T3186色漆、清漆和色漆与清漆用原材料 取样 GB/T6682—2008分析实验室用水规格和试验方法 GB/T6750—2007色漆和清漆 密度的测定 比重瓶法 GB/T8170—2008数值修约规则与极限数值的表示和判定 GB/T9750涂料产品包装标志 GB/T9754—2007色漆和清漆 不含金属颜料的色漆漆膜的20°、60°和85°镜面光泽的测定 GB/T9758.5—1988 色漆和清漆“可溶性”金属含量的测定 第5部分：液体色漆的颜料部分或粉末状色漆中六价铬含量的测定 二苯卡巴肼分光光度法 GB/T9760—1988色漆和清漆 液体或粉末状色漆中酸萃取物的制备 GB/T23985—2009色漆和清漆 挥发性有机化合物(VOC)含量的测定 差值法 GB/T23986—2009色漆和清漆 挥发性有机化合物(VOC)含量的测定 气相色谱法 GB/T23990—2009涂料中苯、甲苯、乙苯和二甲苯含量的测定 气相色谱法 GB/T23992—2009涂料中氯代烃含量的测定 气相色谱法 GB/T30647—2014涂料中有害元素总含量的测定 GB/T34675—2017辐射固化涂料中挥发性有机化合物(VOC)含量的测定 3 术语和定义 下列术语和定义适用于本文件。 3.1 道路车辆road vehicle 设计和制造上用于在道路上载运人员、运送物品或进行专项作业，法律上允许道路行驶的车辆，包括机动车和非机动车。 [GA802—2014，定义3.1] 3.2 轨道交通车辆rail transit vehicle 需要在特定轨道上行驶的一类交通工具，包括动车组、客车(铁道车辆)、城市轨道交通车辆、货车等。 3.3 机动车 power-driven vehicle 由动力装置驱动或牵引，上道路行驶的供人员乘用或用于运送物品以及进行工程专项作业的轮式车辆，包括汽车及汽车列车、摩托车、拖拉机运输机组、轮式专用机械车、挂车。 [GB7258—2017，定义3.1] 3.4 乘用车passenger car 设计和制造上主要用于载运乘客及其随身行李和/或临时物品的汽车，包括驾驶人座位在内最多不超过9个座位。它可以装置一定的专用设备或器具，也可以牵引一辆中置轴挂车。 [GB7258—2017，定义3.2.1.1] 3.5 客车(机动车)bus(vehicle) 设计和制造上主要用于载运乘客及其随身行李的汽车，包括驾驶人座位在内座位数超过9个。根据是否设置有站立乘客区，分为未设置乘客站立区的客车和设有乘客站立区的客车。 [GB7258—2017，定义3.2.1.3] 3.6 载货汽车goods vehicle 设计和制造上主要用于载运货物或牵引挂车的汽车，也包括： a)装置有专用设备或器具但以载运货物为主要目的的汽车； b)由非封闭式货车改装的，虽装置有专用设备或器具，但不属于专项作业车的汽车。 注：封闭式货车是指载货部位的结构为封闭厢体且与驾驶室联成一体，车身结构为一厢式或两厢式的载货汽车。 [GB7258—2017，定义3.2.2] 3.7 动车组powered car train-set 由动车与拖车(有时还有控制车)组成固定编组使用的车组。 [GB/T4549.1—2004，定义2.94] 3.8 铁道车辆railway vehicle；railway car 在铁路轨道上用于运送旅客、货物和为此服务或原则上编组在旅客列车、货物列车中使用的单元载运工具。 [GB/T4549.1—2004，定义2.1] 3.9 客车carriage；passenger car；coach 铁道车辆railway vehicle 供运送旅客和为此服务的或原则上编组在旅客列车中使用的车辆。 [GB/T4549.1—2004，定义2.2] 3.10 城市轨道交通车辆 urban rail transit vehicle 采用轨道结构进行承重和导向的车辆运输系统，依据城市交通总体规划的要求，设置全封闭或部分封闭的专用轨道线路，以列车或单车形式，运送相当规模客流量的公共交通方式。包括地铁系统、轻轨系统、单轨系统、有轨电车、磁浮系统、自动导向轨道系统和市域快速轨道系统。 3.11 货车wagon；freight car 供运送货物和为此服务的或原则上编组在货物列车中使用的车辆。按用途可分为通用火车和专用货车。 [GB/T4549.1—2004，定义2.37] 3.12 专项作业车specical motor vehicle 装置有专用设备或器具，在设计和制造上用于工程专项(包括卫生医疗)作业的汽车，如汽车起重机、消防车、混凝土泵车、清障车、高空作业车、扫路车、吸污车、钻机车、仪器车、检测车、监测车、电源车、通信车、电视车、采血车、医疗车、体检医疗车等，但不包括装置有专用设备或器具而座位数(包括驾驶人座位)超过9个的汽车(消防车除外)。 [GB7258—2017，定义3.2.3] 3.13 低速汽车low-speed vehicle 三轮汽车和低速货车的总称。 注：三轮汽车指最大设计车速小于或等于50km/h的，具有3个车轮的载货汽车；低速货车指最大设计车速小于70km/h的，具有4个车轮的载货汽车。 [GB7258—2017，定义3.2.2.2] 3.14 挂车trailer 设计和制造上需由汽车或拖拉机牵引，才能在道路上正常使用的无动力道路车辆，包括牵引杆挂车、中置轴挂车和半挂车，用于载运货物或特殊用途。 [GB7258—2017，定义3.3] 3.15 底漆primer 多层涂装时，直接涂到底材上的涂料。 3.16 中涂primer surfacer 多层涂装时，施涂于底涂层(或腻子层)与面涂层之间的涂料。 3.17 底色漆basecoat 表面需涂装清漆的色漆。 3.18 实色漆solid color paint 不含金属、珠光等效应颜料的色漆。 3.19 本色面漆solid color paint without clear coat 表面不需涂装清漆的实色漆。 3.20 清漆varnish；clear coat 不含着色物质的一类涂料。 3.21 效应颜料effect pigment 通常为片状颜料，除提供颜色外还能提供一些其他性能，如彩虹色(光在薄层上发生干涉而形成)，随角异色(颜色变换、颜色跳跃、颜色明暗变化)或纹理。 [GB/T5206—2015，定义2.91] 3.22 高装饰效应颜料漆high decorative coatings including effect pigment 含有效应颜料，且涂层橘皮值中长波≤15、短波≤25的一类涂料。 3.23 挥发性有机化合物volatile organic compound VOC 参与大气光化学反应的有机化合物，或者根据有关规定确定的有机化合物。 3.24 挥发性有机化合物含量volatile organic compound content VOC含量 在规定的条件下测得的涂料中存在的挥发性有机化合物的质量。 [GB/T5206—2015，定义2.271] 3.25 施工状态application condition 在施工方式和施工条件满足相应产品技术说明书中的要求时，产品所有组分混合后，可以进行施工的状态。 4产品分类 本标准将车辆涂料分为：水性涂料、溶剂型涂料、辐射固化涂料、粉末涂料。 5要求 5.1除特殊功能性涂料以外的各类车辆涂料中VOC含量的限量值应符合表1、表2和表3的要求。 注：特殊功能性涂料是指聚丙烯底材用底漆(含PP水)、侵蚀底漆、消除新旧涂膜结合处痕迹的辅助材料(接驳扣水)、打穿电泳层时用的修补中涂、防(抗)石击性的涂料[不含辅助防(抗)石击功能的涂料]、汽车发动机和排气管等部位使用的耐高温涂料、150℃以上高温烧结成膜的聚四氟乙烯类涂料(耐化学介质、耐磨、润滑、不粘等特殊功能)、弹性体用润滑涂料、电镀银效果漆、自喷罐修补漆、标志漆等。 水性涂料中VOC含量的限量值应符合表1的要求；溶剂型涂料中VOC含量的限量值应符合表2的要求；辐射固化涂料中VOC含量的限量值应符合表3的要求。 当涂料产品明示适用于多种用途时，应符合各要求中最严格的限量值要求。与车身同步原厂涂装的零部件涂料中VOC含量的限量值，按相应的原厂涂料产品的要求执行。 水性涂料和水性辐射固化涂料VOC含量项目测试时均不考虑水的稀释比例。其他类型涂料按产品明示的施工状态下的施工配比混合后测定，如多组分的某组分使用量为某一范围时，应按照产品施工状态下的施工配比规定的最大比例混合后进行测定。 表1水性涂料中VOC含量的限量值要求 产品类别 产品类型 限量值/(g/L) 汽车原厂涂料(乘用车、载货汽车) 电泳底漆 ≤250 中涂 ≤350 底色漆 ≤530 本色面漆 ≤420 汽车原厂涂料[客车(机动车)] 电泳底漆 ≤250 其他底漆 ≤420 中涂 ≤300 底色漆 ≤420 本色面漆 ≤420 清漆 ≤420 汽车修补用涂料 底色漆 ≤420 本色面漆 ≤420 轨道交通车辆涂料[动车组、客车(铁道车辆)、城市轨道交通车辆、牵引机车] 底漆 ≤250 中涂 ≤300 底色漆 ≤420 本色面漆 ≤420 清漆 ≤420 轨道交通车辆涂料(货车) 底漆 ≤250 面漆 ≤420 摩托车(含电动摩托车)和自行车(含电动自行车)涂料、车辆用零部件涂料 外饰塑胶件用涂料 底漆 ≤450 色漆 ≤530 金属件用涂料 底漆 ≤350 色漆 ≤480 清漆 ≤420 内饰件用涂料 底漆 ≤450 底色漆 ≤530 本色面漆 ≤420 清漆 ≤420 其他车辆(专项作业车、低速汽车、挂车等)涂料 底漆 ≤420 底色漆 ≤420 本色面漆 ≤420 清漆 ≤420 表2溶剂型涂料中VOC含量的限量值要求 产品类别 产品类型 限量值/(g/L) 汽车原厂涂料(乘用车) 中涂 ≤530 底色漆 ≤750 本色面漆 ≤550 清漆 哑光清漆[光泽(60°)≤60单位值] ≤600 其他 单组分 ≤550 双组分 ≤500 载货汽车原厂涂料及零部件涂料 底漆 单组分 ≤700 双组分 ≤540 中涂 ≤500 底色漆 实色漆 ≤680 效应颜 料漆 高装饰 ≤840 其他 ≤750 本色面漆 ≤550 清漆 ≤500 汽车原厂涂料[客车(机动车)] 底漆 ≤540 中涂 ≤540 底色漆 ≤770 本色面漆 ≤550 清漆 ≤480 汽车修补用涂料 底漆 ≤580 中涂 ≤560 底色漆 ≤770 本色面漆 ≤580 清漆 哑光清漆[光泽(60°)≤60单位值] ≤630 其他 ≤480 轨道交通车辆涂料[动车组、客车(铁道车辆)、城市轨道交通车辆、牵引机车] 底漆 ≤540 中涂 ≤540 底色漆 ≤770 本色面漆 ≤550 清漆 ≤560 轨道交通车辆涂料(货车) 底漆 ≤540 面漆 ≤550 表2(续) 产品类别 产品类型 限量值/(g/L) 摩托车(含电动摩托车)和自行车(含电动自行车)涂料、车辆用零部件涂料(载货汽车除外) 外饰塑 胶件用 涂料 底漆 ≤700 色漆 ≤770 清漆 哑光清漆[光泽(60°) ≤60单位值] ≤650 其他 ≤560 金属件 用涂料 底漆 ≤670 色漆 ≤680 效应颜料漆 ≤750 清漆 哑光清漆[光泽(60°)≤60单位值] ≤600 其他 单组分 ≤580 双组分 ≤480 内饰件 用涂料 底漆 ≤670 色漆 ≤770 清漆 哑光清漆[光泽(60°)≤60单位值] ≤630 其他 ≤560 其他车辆(专项作业车、低速汽车、挂车等) 涂料 底漆 ≤540 中涂 ≤540 底色漆 ≤770 本色面漆 ≤580 清漆 ≤560 表3辐射固化涂料中VOC含量的限量值要求 产品类别 产品类型 限量值/(g/L) 水性 喷涂 ≤400 其他 ≤150 非水性 喷涂 ≤550 其他 ≤200 5.2各类车辆涂料中除VOC含量以外其他有害物质含量的限量值应符合表4的要求。 表4其他有害物质含量的限量值要求 项目 限量值 水性涂料 溶剂型涂料 辐射固化涂料 粉末涂料 水性 非水性 苯含量a/% ≤ — 0.3 — 0.1 — 甲苯与二甲苯(含乙苯)总和含量a/% ≤ — 30 — 1 — 苯系物总和含量a/% ≤ [限苯、甲苯、二甲苯(含乙苯)] 1 — 1 — — 卤代烃总和含量a/% ≤ (限二氯甲烷、三氯甲烷、四氯化碳、1，1-二氯乙烷、1，2-二氯乙烷、1，1，1-三氯乙烷、1，1，2-三氯乙烷、1，2-二氯丙烷、1，2，3-三氯丙烷、三氯乙烯、四氯乙烯) — 0.1 — 0.1 — 乙二醇醚及醚酯总和含量a/(mg/kg) ≤ (限乙二醇甲醚、乙二醇甲醚醋酸酯、乙二醇乙醚、乙二醇乙醚醋酸酯、乙二醇二甲醚、乙二醇二乙醚、二乙二醇二甲醚、三乙二醇二甲醚) 300 — 重金属含量/(mg/kg) ≤ (限色漆b) 铅(Pb)含量 1000 镉(Cd)含量 100 六价铬(Cr6+)含量 1000 汞(Hg)含量 1000 a按产品明示的施工状态下的施工配比混合后测定，如多组分的某组分的使用量为某一范围时，应按照产品施工状态下的施工配比规定的最大比例混合后进行测定，水性涂料和水性辐射固化涂料所有项目均不考虑水的稀释比例。 b含有颜料、体质颜料、染料的一类涂料。 6测试方法 6.1取样 产品按GB/T3186的规定取样，也可按商定方法取样。取样量根据检验需要确定。 6.2试验方法 6.2.1VOC含量 6.2.1.1密度 按GB/T6750—2007的规定进行，试验温度为(23±0.5)℃。 6.2.1.2光泽 按GB/T9754—2007的规定进行。用槽深(100±2)μm的湿膜制备器在黑玻璃或背面预涂无光黑漆的平板玻璃板上制备样板，烘烤条件为(105±2)℃/1h，用60°镜面光泽计测试。 6.2.1.3水性涂料中VOC含量 先按附录A的规定，测试水性涂料中水分含量。 如涂料中水分含量大于或等于70%(质量分数)，按GB/T23986—2009的规定进行。称取试样约1g；色谱柱采用中等极性色谱柱(6%氰丙苯基/94%聚二甲基硅氧烷毛细管柱)，标记物为己二酸二乙酯。VOC含量按GB/T23986—2009中10.4计算。 如涂料中水分含量小于70%(质量分数)，按GB/T23985—2009的规定进行。不挥发物含量按GB/T1725—2007的规定进行，称取试样约1g，烘烤条件为(105±2)℃/1h。VOC含量按GB/T23985—2009中8.4计算。 6.2.1.4溶剂型涂料中VOC含量 按GB/T23985—2009的规定进行。不挥发物含量按GB/T1725—2007的规定进行，称取试样约1g，烘烤条件为(105±2)℃/1h。不测水分，水分含量设为零。VOC含量的计算，按GB/T23985—2009中8.3进行。 6.2.1.5辐射固化涂料中VOC含量 按GB/T34675—2017的规定进行。水性辐射固化涂料中VOC含量的计算，按GB/T34675—2017中8.4进行；水分含量的测定，按附录A的规定进行。非水性辐射固化涂料中VOC含量的计算，按GB/T34675—2017中8.3进行；不测水分，水分含量设为零。 6.2.2苯含量、甲苯和二甲苯(含乙苯)总和含量 按GB/T23990—2009中A法的规定进行。苯含量、甲苯和二甲苯(含乙苯)含量的计算，按GB/T23990—2009中8.4.3进行。 6.2.3苯系物总和含量 按GB/T23990—2009中B法的规定进行。苯系物含量的计算，按GB/T23990—2009中9.4.3进行，并换算成质量分数(%)表示。 6.2.4卤代烃总和含量 按GB/T23992—2009的规定进行。卤代烃含量的计算，按GB/T23992—2009中8.5.2进行。 6.2.5乙二醇醚及醚酯总和含量 按GB/T23986—2009的规定进行。乙二醇醚及醚酯含量的计算，按GB/T23986—2009中10.2进行，并换算成毫克每千克(mg/kg)表示。 6.2.6重金属含量 铅(Pb)含量、镉(Cd)含量、汞(Hg)含量的测定，按GB/T30647—2014的规定进行。 六价铬(Cr6+)含量的测定，先按GB/T30647—2014的规定，测定试样中的总铬含量，再按附录B的规定进行。