• <pre id="br18r"></pre>
    1. <blockquote id="br18r"><p id="br18r"></p></blockquote><blockquote id="br18r"></blockquote>

          1. 国产实拍强伦奸在线观看,久久精品国产久精国产果冻传媒,亚洲3p无码一区二区三区,日韩人妻一曲二曲,亚洲AV涩涩涩成人网站在线播放,精品久久综合1区2区3区激情 ,99久久久无码国产精品动漫,日逼导航
            Hotline:400-880-1556

            English




            basic introduction

            In order to promote energy conservation and environmental protection, with the approval of the State Council, from February 1, 2015, the consumption tax on coatings with a volatile organic compound (VOC) content greater than 420g/L under construction will be levied.

            Paint refers to the general term for a class of liquid or solid materials that can be applied to the surface of an object to form a solid coating with protection, decoration or special properties.

            The Chinese coatings industry defines VOC as "any organic compound with an initial boiling point less than or equal to 250 °C at a standard pressure of 101.3 kPa.

            standard test

            GB 18581-2009 "Interior Decoration Materials, Limits of Harmful Substances in Solvent-Based Wood Coatings"

            GB 18582-2008 "Limit of harmful substances in interior wall coating materials for interior decoration"

            GB 24613-2009 "Limits for Harmful Substances in Paints for Toys"

            GB 24410-2009 "Limit of harmful substances in water-based wood coatings for interior decoration materials"

            GB 24408-2009 "Limit of harmful substances in exterior wall coatings for construction"

            GB/T 1725-2007 "Determination of Non-Volatile Content in Paints, Varnishes and Plastics"

            GB/T 23985-2009 "Determination of Volatile Organic Compound (VOC) Content of Paints and Varnishes" Difference Method"

            GB/T 23986-2009 "Determination of Volatile Organic Compounds in Paints and Varnishes Part 2 Gas Chromatography"

            HJ 2537-2014 "Technical Requirements for Environmental Labeling Products Waterborne Coatings"

            Test product range

            The coating consists of primary film-forming substances, secondary film-forming substances, etc.

            According to the main film-forming substance coatings: oils, natural resins, phenolic resins, asphalts, alkyd resins, amino resins, nitros, filter vinyl resins, vinyl resins, acrylic resins, Polyester resins (aqueous coatings), epoxy resins, polyurethane resins, elemental organics, rubbers, celluloses, other film-forming materials, etc. (Including solvent-based and water-based paint.)

            Separate resins, curing agents, thinners and auxiliary film-forming substances in coatings do not need to be tested.

            In order to promote energy conservation and environmental protection, with the approval of the State Council, from February 1, 2015, the consumption tax on coatings with a volatile organic compound (VOC) content greater than 420g/L under construction will be levied.

            Our advantage

            1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

            2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

            3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.


            Online consultation

            Online consultation

            Recommend
            • Australian RCM certification

              Australian RCM certification

              Australian RCM certification

            • Label printer ANATEL certification

              Label printer ANATEL certification

              Label printers entering the Brazilian market, ANATEL certification is an essential passport! It is the recognition of the Brazilian Telecommunications Authority for the safety and compliance of electronic products, without which products cannot be legally sold.

            • Label printer SRRC certification

              Label printer SRRC certification

              SRRC certification is not only a guarantee of product compliance, but also a key to opening up the market.

            Paint VOC testing

            In order to promote energy conservation and environmental protection, with the approval of the State Council, from February 1, 2015, the consumption tax on coatings with a volatile organic compound (VOC) content greater than 420g/L under construction will be levied.

            Get a quote
            主站蜘蛛池模板: 南宫市| 亚洲中文久久久精品无码| 欧美视频一区二区三区精品| 虎白女粉嫩尤物福利视频| 99免费视频| 国产成人高清精品免费软件| 亚洲综合久久综合激情久久| 少妇又紧又色又爽又刺激视频| 精品免费久久久久电影午夜| 曰韩三级无码久久探| 色综合一本到久久亚洲91| 无套内内射视频网站| 国产高清不卡免费视频| 高清无码午夜福利视频| 久久国产精品老女人| 国产自偷自偷免费一区| 久久久久成人精品| 国产人在线成免费视频| 亚洲一区二区三区自拍高清| 亚洲成人黄色| 人人爽人人澡人人妻| 无码精品久久久久久人妻中字| 亚洲成人av在线系列| AV青青草| AV?无码?白浆| 999国内精品永久免费视频 | 内射少妇一区27p| 97成人碰碰久久人人超级碰oo| 亚洲精品成人a| 99热这里只有精品国产福利| 人妻少妇一区二区三区| 极品白嫩少妇无套内谢| 黑人粗硬进入过程视频| 男女啪啪高潮激烈免费版| 樱桃视频影院在线播放| 强行糟蹋人妻hd中文字幕| 国产美女69视频免费观看| 国产一级片内射在线视频| 亚洲欧美日韩在线码| 业余 自由 性别 成熟偷窥| 国产成本人片免费a∨短片|