GOST 4650-2014
ГОСТ 4650-2014
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Plastics. Methods for the determination of water absorption
Пластмассы. Методы определения водопоглощения
Status: Effective - Supersedes. IUS 5-2015
The standard establishes a method for determining the water absorption (water absorption) of plastics in the form of samples of flat or curved shape in the "through thickness" direction. The standard also establishes methods for determining the mass of water absorbed by a sample of plastics of specific dimensions when immersed in water or under the influence of moist air under controlled conditions. The method given in the standard does not allow for the comparison of water absorption of different types of plastics with an equilibrium water content, and therefore is not limited by the Fick single-phase diffusion law. The results obtained using standard methods apply to most plastics, except cellular plastics, film materials, granules and powders, which are characterized by additional absorption and capillary effects.
Стандарт устанавливает метод определения водопоглощения (абсорбции воды) пластмасс в виде образцов плоской или искривленной формы в направлении "сквозь толщину". Стандарт устанавливает также методы определения массы воды, поглощенной образцом пластмассыопределенных размеров при погружении в воду или под воздействием влажного воздуха в контролируемых условиях. Метод, приведенный в стандарте, не предусматривает сравнение водопоглощения разных видов пластмасс при равновесном содержании воды, и поэтому неограничивается законом однофазной диффузии Фика. Результаты, полученные по методам стандарта, применимы к большинству пластмасс, кроме ячеистых пластмасс, пленочных материалов, гранул и порошков, для которых характерно дополнительное поглощение и капиллярные эффекты.
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Format: Electronic (pdf/doc)
Approved: Federal Agency for Technical Regulation and Metrology,
5/29/2014
SKU: RUSS71003
The Product is Contained in the Following Classifiers:
Construction (Max) »
Standards »
Other state standards used in construction »
83 Rubber, technical rubber, asbestos and plastic industries »
Evidence base (TR CU, Technical Regulation of the Customs Union) »
019/2011 TR CU. On safety of personal protective equipment »
Regulations and standards (to ТР ТС 019/2011) »
PromExpert »
SECTION I. TECHNICAL REGULATION »
V Testing and control »
4 Testing and control of products »
4.9 Testing and control of chemical and industrial products »
4.9.1 Products of main chemical industries »
ISO classifier »
83 RUBBER, RUBBER-TECHNICAL, ASBESTOTECHNICAL AND PLASTIC INDUSTRY »
83.080 Plastics »
83.080.01 Plastics in general »
National standards »
83 RUBBER, RUBBER-TECHNICAL, ASBESTOTECHNICAL AND PLASTIC INDUSTRY »
83.080 Plastics »
83.080.01 Plastics in general »
As a Replacement Of:
GOST 4650-80: Plastics. Methods for the determination of water absorption
The Document References:
GOST 12020-72: Plastics. Testing methods of plastics resistance to chemical substances
GOST 18616-80: Plastics. Method of determination of shrinkage
GOST 26277-84: Plastics. Preparation of test specimens by machining
The Document is Referenced By:
Decision 30: On approval of the list of products in respect of which the customs declaration is accompanied by a document about the conformity assessment requirements of the technical regulations of the Customs Union "On safety of agricultural and forestry tractors and trailers to them" (TR TS 031/2012) (as amended on March 21, 2017)
Decision 30: On the list of international and regional (interstate) standards, and in their absence - national (state) standards, resulting in voluntary compliance with the requirements of technical regulations of the Customs Union "On Personal Protective Equipment Safety" (TR CU 019/2011), and the list of international and regional (interstate) standards, and in their absence - national (state) standards, containing rules and methods of research (tests) and measurements, including
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