GB/T 21868.6-2008 English PDFUS$134.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 21868.6-2008: Pigments and extenders -- Methods of dispersion for assessment of dispersion characteristics -- Part 6: Dispersion using a triple-roll mill Status: Valid
Basic dataStandard ID: GB/T 21868.6-2008 (GB/T21868.6-2008)Description (Translated English): Pigments and extenders -- Methods of dispersion for assessment of dispersion characteristics -- Part 6: Dispersion using a triple-roll mill Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G53 Classification of International Standard: 87.060.10 Word Count Estimation: 7,761 Date of Issue: 2008-05-14 Date of Implementation: 2008-10-01 Adopted Standard: ISO 8780-6-1990, IDT Regulation (derived from): Announcement of Newly Approved National Standards 2008 No. 8 (No. 121 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the use of a three-roll mill dispersed pigments and methods. Test results of this method are likely to be the appropriate production test equipment products by dispersing the dispersion quality derived conclusions. The part to the GB/T 21867 The evaluation method used in combination, using the agreed high viscosity, non-volatile matter -based paint systems. This part should GB/T 21868. 1-2008 read together. This method is limited to high viscosity abrasive. To improve the accuracy of the method, the proposed test reference agreed pigment and the pigment dispersing procedure (process) to be carried out at the same temperature. The results obtained by this method is not appropriate to use the other dispersion method and the dispersion of the results obtained are compared. GB/T 21868.6-2008: Pigments and extenders -- Methods of dispersion for assessment of dispersion characteristics -- Part 6: Dispersion using a triple-roll mill---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Pigments and extenders Methods of dispersion for assessment of dispersion characteristics Part 6. Dispersion using a triple-roll mill ICS 87.060.10 G53 National Standards of People's Republic of China GB/T 21868.6-2008/ISO 8780-6.1990 Pigments and extenders assessment of dispersion characteristics with dispersion Part 6. a three-roll mill dispersion (ISO 8780-6.1990, IDT) Posted 2008-05-14 2008-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis section identical with the international standard ISO 8780-6.1990 "Pigments and extenders --- dispersion for assessment of dispersion method used in the first --- Part 6. a three-roll mill dispersion "(in English). This section is one of the GB/T 21868 "dispersion method of pigments and extenders assessment of dispersion characteristics with" national standards, listed below A series of national standards with international standards and the structure corresponding to. --- Part 1. General (ISO 8780-1.1990); --- Part 2. oscillation mill dispersion (ISO 8780-2.1990); --- Part 3. dispersion using a high speed mixer (ISO 8780-3.1990); --- Part 4. sand dispersion (ISO 8780-4.1990); --- Part 5. automatic flat mill dispersion (ISO 8780-5.1990); --- Part 6. (.1990 ISO 8780-6) dispersed with a three-roll mill. This section GB/T 21868 Part 6. Are listed below in this section is closely related to the GB/T 21867 "Evaluation Method pigments and dispersion" series of national standard Prospective structure and corresponding international standards. --- Part 1. Changes the tinting strength of colored pigments to be assessed (ISO 8781-1.1990); --- Part 2. change the fineness of grind to be assessed (ISO 8781-2.1990); --- Part 3. Evaluation of changes in the gloss (ISO 8781-3.1990). This section of Appendix A normative appendix. This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee and is under the jurisdiction of paints and pigments. This section is drafted. in the construction of Changzhou coating Chemical Research Institute, Kunshan City Shiming Technology Development Co., Ltd. The main drafters of this section. Huang Yidong, Jiang Su Shen, Du Zhangsen. GB/T 21868.6-2008/ISO 8780-6.1990 Pigments and extenders assessment of dispersion characteristics with dispersion Part 6. a three-roll mill dispersion1 ScopeThis section provides a three-roll mill dispersion method of pigments and extenders. Test results of this method has the potential to become a test product by Corresponding production equipment for dispersing the dispersion obtained good or bad conclusions. This section should be combined with GB/T 21867 Evaluation Method according to use them, use the agreed high viscosity, non-volatile compounds paint matrix system. This section should be read in conjunction with the GB/T 21868.1-2008. This method is limited to the high viscosity of the grind. To improve the accuracy of the method, the test is recommended and agreed reference pigment dispersion of pigment Program (process) to be performed at the same temperature. The results of this method and the results should not be dispersed with other methods of dispersion of results Comparison. NOTE. The advantage of this part of the three-roll mill dispersion equipment is easy to operate, can be prepared in an appropriate amount of millbase comprehensive assessment of dispersion characteristics, the device easy to get into Line cleaning and dispersion can be dispersed Results Results obtained with the production of machinery and equipment from the corresponding. This part of the class of three-roll mill, unlike low demand Millbase formulation viscosity dispersion device, which allows the grind recipe be adjusted within a wide range of high viscosity. Because of this strong adaptability , And therefore need not be strictly specifies an appropriate mill base recipe.2 Normative referencesThe following documents contain provisions which, through reference GB/T 21868 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes - Sampling (ISO 15528.2000, IDT) GB/T 6753.1-2007 Paints, varnishes and printing inks Determination of fineness of grind (ISO 1524. 1983, IDT) GB/T 13451.2-1992 relative tinting strength of colored pigments and relative scattering power of white pigments - Photometric methods (idt ISO 787-24. 1985) GB/T 21868.1-2008 Methods for dispersing pigments and extenders assessment of dispersion characteristics with 1. General (ISO 8780-1. 1990, IDT) GB/T 21867.1-2008 Evaluation Method of pigments and dispersion - Part 1. change the tinting strength of colored pigments Of assessed (ISO 8781-1.1990, IDT) GB/T 21867.2-2008 Evaluation Method of pigments and dispersion - Part 2. Changes by the fineness of grind was Assessment (ISO 8781-2.1990, IDT) GB/T 21867.3-2008 Evaluation Method of pigments and dispersion - Part 3. Evaluation of changes in the gloss (ISO 8781-3.1990, IDT)3 requires supplementary informationTest methods specified in this part needs to be improved with additional information. The contents of the supplementary information is given in Appendix A.4 EquipmentNormal laboratory equipment and glassware, as well as the following equipment. 4.1 three-roll mill, with a temperature control device and a mixing device and comply with the following requirements. 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