GB/T 4616-2008 English PDFUS$114.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4616-2008: Plastics -- Phenolic moulding materials -- Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) Status: Valid GB/T 4616: Historical versions
Basic dataStandard ID: GB/T 4616-2008 (GB/T4616-2008)Description (Translated English): Plastics -- Phenolic moulding materials -- Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G31 Classification of International Standard: 83.080.01 Word Count Estimation: 6,649 Date of Issue: 2008-08-04 Date of Implementation: 2009-04-01 Older Standard (superseded by this standard): GB/T 4616-1984 Adopted Standard: ISO 308-1994, IDT Regulation (derived from): National Standard Approval Announcement 2008 No.14 (Total No.127) 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 content by weight of acetone extraction method for the determination of phenolic molding powder from near its boiling point solubles. This standard applies only to the novolak resin as a plastic molding, not applicable to the resol resin as a plastic molding, because the resin is not completely dissolved in an acetone. This standard, the number of the acetone soluble resin content is apparent, although mainly by the extract phenolic resin and hexamethylenetetramine composition, but generally other components of the acetone-soluble matter (such as a lubricant, colorant or filler from natural resin), are collectively resin. GB/T 4616-2008: Plastics -- Phenolic moulding materials -- Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state)---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. Plastics. Phenolic moulding materials. Determination of acetone-soluble matter (apparent resin content of material in the unmoulded state) ICS 83.080.01 G31 National Standards of People's Republic of China GB/T 4616-2008/ISO 308.1994 Replacing GB/T 4616-1984 Phenolic molding plastics acetone-soluble matter (Apparent resin content of material molded state) Determination (ISO 308.1994, IDT) Posted 2008-08-04 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard is identical with ISO 308.1994 "Plastics --- --- acetone-soluble phenolic molding plastic (not apparent resin material molded state Content) Determination "(in English), with the main differences are as follows. --- "This International Standard" by "this standard"; --- Deleted international standards foreword; --- With a decimal point instead of the international standard decimal symbol ",". ","; --- For the ISO 308.1994 and other international standards referenced in our country is equivalent to using the standard, this standard with reference to our country Standard home instead of corresponding international standards. This standard replaces GB/T 4616-1984 "Phenolic molding acetone-soluble matter (apparent resin content of material molded state) determination." This standard and GB/T 4616-1984 The main differences are as follows. --- Standard name change to be consistent with ISO standards; --- Added "Normative References" chapter; --- Added "Terms and Definitions" chapter; --- Editorial changes. This standard was proposed by the Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of plastic (SAC/TC15) centralized. This standard is drafted by. National Quality Supervision and Inspection Center of synthetic resin. Participated in the drafting of this standard. Shanghai European-Asian Synthetic Material Co., Ltd. Changshu Southeast plastic. Drafters of this standard. Bo Yun Ling, Zhao Ping, Liu Yong, Wei Wei. This standard replaces the standards previously issued as follows. --- GB/T 4616-1984. GB/T 4616-2008/ISO 308.1994 Phenolic molding plastics acetone-soluble matter (Apparent resin content of material molded state) Determination1 ScopeThis standard specifies the method for the determination content by weight of acetone extract from phenolic molding powder in the vicinity of its boiling point solubles. This standard applies only to novolac resin substrate molded plastic, does not apply to resole resin substrate molded plastic, because After a resin can not be completely dissolved in acetone. This standard, the number of the acetone soluble resin content is apparent, although the extract is mainly composed of phenolic resin and hexamethylenetetramine group %, But there are often alternative acetone soluble component (such as a lubricant, colorant or filler from natural resins), are collectively referred to as resin.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2035 plastic terms and their definitions (GB/T 2035-2008, ISO 472.1999, IDT) GB/T 1404.1 powdered phenolic molding plastics - Part 1. nomenclature and base specification (GB/T 1404.1-2008, ISO 14526-1.1999, IDT)3 Terms and DefinitionsGB/T 2035 and GB/T 1404.1 prescribed phenolic resins, novolak, resole phenolic resin-based mold Terms and definitions apply to this standard plastics. Principle 4 Heating acetone extract powder soluble matter from the sample, dried solubles and weighed.5 Reagents5.1 acetone, AR.6 Instruments6.1 grinding equipment, the crude material was ground to a powder device. 6.2 scale, indexing is 0.001g. 6.3 extractor shown in Figure 1 (can be used instead of a single layer of filter paper extraction thimble). Single extraction thimbles can be separated from the acetone-soluble matter, as well as cotton piston also be separated from the acetone solubles. It should be in an oven (6.4) Bake in 105 ℃ 2h, and then into the dryer (6.5). You can use the improved Soxhlet extractor to ensure that a single layer of material extraction thimbles is reached the boiling temperature of the solvent siege. Equally To use any device can achieve the same effect. 6.4 drying oven, the temperature can be controlled at about 105 ℃. 6.5 dryer. 6.6 weighing bottle with ground glass stopper. GB/T 4616-2008/ISO 308.1994 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4616-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 4616-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 4616-2008_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4616-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
