ICS 91.100 Q 10 JC BuiIding Materials Industry Standard of the People's Republic of China JC/T 2498—2018 Shell Powder Decorative Interior Wall Materials 内墙用贝壳粉装饰壁材 (Eng/ish Trans/ation) Issue date:2018-10-22 Implementation date:2019-04-01 Issued by:Ministry of Industry and Information Technology of the People's Republic of China JC/T 2498—2018 Foreword Standardization Committee for Environmentally Friendly and Healthily Beneficial Building Materials is in charge of this English translation. In case of any doubt about the contents of English translation, the Chinese original shall be considered authoritative. This document is drafted in accordance with the rules given in the GB/T1.1-2009 Directives for standardization-Part 1:Structure and drafting of standards. This document is proposed by China Building Materials Federation This document is prepared by Standardization Committee for Environmentally Friendly and Healthily Beneficial Building Materials This document is issued as first edition JC/T2498—2018 IV JC/T 2498—2018 Shell Powder Decorative lnterior Wall Materials 1 Scope This document specifies the terms and definitions, classification and marking, raw materials, requirements, test methods, inspection rules, symbols, packaging, transport, and storage of shell powder decorative interior wall materials. This document is applicable to dry powdered interior wall decorative coating materials with shellac raw material mass percentage not less than 30%. 2 Normative references documents 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 1728-1979 Determination of drying time of coating and putty films GB 8624 Classification for burning behavior of building materials and products GB/T 9265 Determination for alkali resistance of fi/m of architectura/ paints and coatings GB/T 9271 Paints and varnishes-Standard pane/s for testing GB/T 9756-2009 Synthetic resin emulsion coatings for interior wal/ GB/T 9779-2015 Mu/ti-/ayer coatings for architecture GB/T15608The Chinese color system GB 18582 Indoor decorating and refurbishing materia/s- Limit of harmful substances of interior architecturalcoatings HG/T 3950-2007 (2017)Antibacteria/ coatings HG/T 4560-2013 Test method for anti-condensation of coating JC/T 412.1-2006Fiber cement flat sheets-Part1:Non-asbestos fiber cement flat sheets JC/T 1074-2008 (2017) Purification performance of coatings with air purification JC/T2177-2013Diatomaceousdecorativeinteriorwa//materials JC/T2498—2018 JG/T309-2011 Determination and c/assification of water-vapor transmission rate(permeability) for exterior wal/ coatings. 3 Terms and Definitions For the purposes of this document, the following terms and definitions apply. 3. 1 shell powder materials A kind of calcium-containing compound powder made of shellfish shells as raw material,and prepared through cleaning, crushing or washing, calcining, grinding and other processes. 3. 2 shell powder decorative interior wall materials An interior wall coatingmaterial in the formof dry powder preparedwith shell powder materials main binding materials. 4 Classification and marking 4.1 Classification Shell powder decorative wall materials for interior walls are classified according to their decorative effect,into Texture type, i.e. Non-flat decorative coating withcertain thickness, indicated as type I, and Flat type, i.e. Flat decorative coating applied the requirements of coverage,indicated as type ll. 4. 2 Marking Shell powder decorative wall materials for interior walls are marked in the order of product name, standard number, and classification. EXAMPLE: Textured type shell powder decorative wall materials for interior walls are marked as below: shell powder decorative interior wall materials JC/T 2498-1 5Raw materials 5.1 Shell powder materials shall be odorless