GB/T 12008.2-2010 PDF English
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GB/T 12008.2: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB/T 12008.2-2010 | 190 | Add to Cart | Auto, 9 seconds. | Plastics - Polyether polyols - Part 2: Specification | Valid |
| GB/T 12008.2-1989 | 199 | Add to Cart | 2 days | Polyether polyols--Specification | Obsolete |
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GB/T 12008.2-2010: Plastics - Polyether polyols - Part 2: Specification
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT12008.2-2010GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 83.080;83.080.20 G 32 Replacing GB/T 12008.2-1989 Plastics - Polyether polyols - Part 2.Specification Issued on. SEPTEMBER 26, 2010 Implemented on. AUGUST 01, 2011 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3 1 Scope... 5 2 Normative references... 5 3 Main representative products... 6 4 Requirements... 7 5 Test methods... 11 6 Inspection rules... 12 7 Marking, packaging, transportation and storage... 13 Appendix A (Informative) Comparison of new and old specifications of the main representative products... 14 Appendix B (Normative) Determination of pH value... 151 Scope
This part of GB/T 12008 specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage of polyether polyols 113E, 210, 220, 220X, 330E, 348H, 330, 330X, 360H, 310, 403, 6305, 8305. This Part applies to polyether polyols 113E, 210, 220, 220X, 330E, 348H, 330, 330X, 360H, 310, 403, 6305, 8305, which are prepared by ring-opening polymerization of polyol and propylene oxide, (or) polyol and propylene oxide, and ethylene oxide under the action of a catalyst.2 Normative references
The terms in the following documents become the terms of this Part by reference to this Part of GB/T 12008.For dated references, all subsequent amendments (not including errata content) or revisions do not apply to this Part. However, parties to agreements that are based on this Part are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this Part. GB/T 605-2006, Chemical reagent - General method for the measurement of colour (eqv ISO 6353-1.1982) GB/T 6678-2003, General Principles for Sampling Chemical Products GB/T 6680-2003, General rules for sampling liquid chemical products GB/T 6682-1992, Water for laboratory use; Specifications (ISO 3696.1987, MOD) GB/T 12008.1-2009, Plastics - Polyether polyols - Part 1.Designation system GB/T 12008.3-2009, Plastics - Polyether polyols - Part 3.Determination of hydroxyl number GB/T 12008.4-2009, Plastics - Polyether polyols - Part 4.Determination of sodium and potassium GB/T 12008.5-2010, Plastics - Polyether polyols - Part 5.Determination of acidity as acid number3 Main representative products
Polyether polyols are classified and named according to GB/T 12008.1-2009. The main products and main uses of polyether polyols applicable to this Part are shown in Table 1.4 Requirements
4.1 Appearance A uniform viscous liquid without suspended matter nor mechanical impurities. 4.2 Technical requirements5 Test methods
5.1 Determination of appearance Put 50 mL of sample into a 50 mL colorimetric tube; visually inspect from the side under transmitted light conditions. 5.2 Determination of chromaticity The platinum-cobalt color number is determined by the method that is specified in GB/T 605-2006; the Gardner color scale is determined by the method that is specified in GB/T 22295-2008. 5.3 Determination of hydroxyl number Use the method that is specified in GB/T 12008.3-2009 for determination, with Method A as the arbitration method. 5.9 Determination of viscosity Use the method that is specified in GB/T 12008.7-2010 for determination, with Method A as the arbitration method. 5.10 Determination of pH value Measure according to the method that is specified in Appendix B.6 Inspection rules
6.1 Inspection classification and inspection items The inspection of polyether polyol products is delivery inspection; all items in 4.1 and 4.2 of this Part are delivery inspection items. 6.2 Batching rules and sampling plan 6.3 Determination rules and reinspection rules 6.3.1 Determination rules Polyether polyols shall be inspected by the quality inspection department of the manufacturer in accordance with the test methods that are specified in this Part; the quality of the product shall be determined based on the inspection results and the requirements in this Part.7 Marking, packaging, transportation and storage
7.1 Marking The packaging containers of polyether polyol products shall have clear and firm marking. The marking content may include. product name, specification, grade, net content, production date, batch number, standard number, name and site of the manufacturer, etc. 7.2 Packaging The packaging container for polyether polyol products shall be a clean and dried iron drum with painted inner film. The lid of the packaging container shall be strictly sealed; there shall be an outer cover; the net content of the barreled product is 200 kg per barrel. Other types of clean packaging containers can also be used. Each batch of products shall be accompanied by a quality certificate. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
