83.080.10 热固性塑料 标准查询与下载

GSO ISO 15028:2015 塑料 用于生产聚氨酯的芳香族异氰酸酯 分解氯的测定

This International Standard specifies a method for the determination of the hydrolysable-chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate or mixtures of the two. This test method may also be applied to other isocyanates of suitable solubility, such as crude or refined polymeric isocyanates.

Plastics -- Aromatic isocyanates for use in the production of polyurethanes -- Determination of hydrolysable chlorine

GSO ISO 14849:2015 塑料 苯酚甲醛模制品 游离氨和铵化合物的测定 靛酚法

This International Standard specifies a colorimetric comparison method for the determination of the amount of ammonia and ammonium compounds in phenol-formaldehyde mouldings. NOTE This International Standard does not provide an absolute measure of the amount of ammonia present. The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contamination of foodstuffs in contact with the article has to be considered.

Plastics -- Phenol-formaldehyde mouldings -- Determination of free ammonia and ammonium compounds -- Indophenol method

GSO ISO 2535:2015 塑料 不饱和聚酯树脂 环境温度凝胶时间的测量

This International Standard specifies methods of measuring, under defined conditions, the gel time at ambient temperature (i.e. within the range 18 °C to 30 °C) of unsaturated-polyester resins. The referee temperature, if needed, is 25 °C.

Plastics -- Unsaturated-polyester resins -- Measurement of gel time at ambient temperature

GSO ISO 584:2015 塑料 不饱和聚酯树脂 80℃反应活性的测定（常规方法）

This International Standard specifies a method for the determination of the reactivity of unsaturated polyester resins as characterized by the maximum temperature reached by a solution of unsaturated polyester resin and catalyst when heated in a water-bath at 80 °C, by the time taken for the temperature of the mixture to rise from 65 °C to this maximum temperature, and also, if the maximum temperature exceeds 90 °C, by the time taken for the temperature to rise from 65 to 90 °C. These characteristics give an indication of the processing behaviour of unsaturated polyester resins and can be used to compare resins of similar type. As the test results depend very much on the conditions under which the test is carried out, these conditions are described in detail NOTES 1 If the method is used to test commercial benzoyl peroxide catalyst, the results should be compared with those obtained for the same resin using pure benzoyl peroxide. 2 By agreement between the interested parties, certain test conditions can be modified : such as the test temperature (temperature of the thermostatically controlled bath) and the quantity and type of catalyst system (mixtures of catalysts, combinations of catalysts and accelerators).

Plastics -- Unsaturated polyester resins -- Determination of reactivity at 80 degrees C (conventional method)

ASTM D4663-15 聚氨酯原材料的标准试验方法:异氰酸酯中可水解氯的测定

5.1 This test method can be used for research or for quality control to characterize toluene diisocyanates. Hydrolyzable chlorine correlates with performance in some polyurethane systems. 1.1 This test method determines the hydrolyzable chlorine content of toluene-2,4-diisocyanate, toluene-2,6-diisocyanate, or mixtures of the two. It is acceptable to apply this test method to other isocyanates of suitable solubility. (See Note 1.) The main sources of hydrolyzable chlorine in the isocyanates are carbamoyl chloride and dissolved phosgene. Both of these compounds react with alcohols and water, forming ureas, carbamates, carbon dioxide, and hydrochloric acid. (See Note 2.) 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 1: It is possible that this test method is applicable to crude polymeric isocyanates. However, the precision with crude polymeric isocyanates has not been established. Note 2: This standard is identical to ISO 15028.

Standard Test Method for Polyurethane Raw Materials: Determination of Hydrolyzable Chlorine of Isocyanates

GOST R 50490-2015 塑料. 不饱和聚酯树脂. 羟值的测定

Plastics. Unsaturated polyester resins. Determination of hydroxyl value

ASTM D1755-15 聚氯乙烯树脂的标准规格

1.1 This specification covers the establishment of requirements for homopolymers of vinyl chloride in original powder form intended for subsequent mixing and processing in thermoplastic compositions. These resins have a nominal specific gravity of 1.4 and a theoretical chlorine content of 56.88201;%. 1.2 Two types of resin have been recognized: general purpose (suspension or mass) and dispersion. When mixed with plasticizer, general-purpose resins yield a dry or moist powder while dispersion resins yield a liquid slurry. Since many resins are polymerized to meet special requirements, a system of classification has been provided that permits a wide choice of grades. 1.3 The values stated in SI units are to be regarded as the standard. 1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Note 1: This standard and ISO 12648201;–8201;1980 address the same subject matter, but differ in technical content.

Standard Specification for Poly(Vinyl Chloride) Resins

GOST 22181-2015 不饱和聚脂树脂. 室温凝胶时间的测定方法

Unsaturated polyester resins. Methods for determination of gel time at ambient temperature

ASTM D5991-15 聚对苯二甲酸乙二醇酯片 (PET) 中聚氯乙烯 (PVC) 污染的分类和浓缩的标准实施规程

5.1 Presence of even low concentrations of PVC in recycled PET flakes results in equipment corrosion problems during processing. The PVC contamination leve shall dictate the market for use of the recycled polymer in secondary products. Procedures presented in this practice are used to identify the PVC contamination in recycled PET flakes. Note 4: These procedures may also be used to estimate the concentration of PVC contamination. 1.1 This practice covers four procedures for separation and qualitative identification of poly(vinyl chloride) (PVC) contamination in poly(ethylene terephthalate) (PET) flakes. Note 1: Although not presented as a quantitative method, procedures presented in this practice may be used to provide quantitative results at the discretion of the user. The user assumes the responsibility to verify the reproducibility of quantitative results. Data from an independent source suggest a PVC detection level of 200 ppm (w/w) based on an original sample weight of 454 g. 1.2 Procedure A is based on different fluorescence of PVC and PET when these polymers are exposed to ultraviolet (UV) light. 1.3 Procedure B is an oven test based upon the charring of PVC when it is heated in air at 235°C. 1.4 Procedures C and D are dye tests based on differential staining of PVC and PET. Note 2: Other polymers (for example, PETG) also absorb the stain or brightener. Such interferences will result in false positive identification of PVC as the contaminant. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazards see Section 8. Note 3: There is no known ISO equivalent to this standard.

Standard Practice for Separation and Identification of Poly(Vinyl Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake

GOST 29326-2015 塑料. 酚醛树脂. 酸性条件下树脂材料的反应性测定

Plastics. Phenolic resins. Determination of reactivity of resols under acid conditions

GOST R 50096-2015 塑料. 环氧树脂用硬化剂和加速剂. 第1部分. 命名

Plastics. Hardeners and accelerators for epoxy resins. Part 1. Designation

GOST R 50486-2015 塑料. 酚醛树脂. 六亚甲基四胺含量的测定

Plastics. Phenolic resins. Determination of hexamethylenetetramine content

GOST R 50492-2015 塑料. 液态环氧树脂. 结晶倾向的测定

Plastics. Liquid epoxy resins. Determination of tendency to crystallize

ASTM D3644-15 苯乙烯-马来酸酐树脂酸值的标准试验方法

4.1 This test method is used to determine the property of styrene-maleic anhydride resins functionality. Acid functionality determines the utility of resin as well as being a significant quality control test. 4.2 Because some of the anhydride functionality has been hydrolyzed in the manufacturing process, direct titration with base will produce erroneous data on the total acid content of the fully hydrolyzed resin in use. This test method charges excess alkali to hydrolize the anhydride functionality and neutralize the resulting acid. The remaining unreacted alkali is then back titrated with a standardized acid solution and the acid content is determined by difference. 1.1 This test method covers the measurement of the free acidity present in styrene-maleic anhydride resins. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Acid Number of Styrene-Maleic Anhydride Resins

GOST R 52021-2015 环氧树脂和相关材料. 氯质量分数的测定方法

Epoxy resins and related materials. Methods for determination of chlorine mass fraction

ASTM D4549-15 聚苯乙烯和橡胶改性聚苯乙烯成型和挤压材料 (PS) 规格的标准分类系统和基础

1.1 This classification system covers polystyrene materials, both crystal and rubber modified, suitable for molding and extrusion. 1.2 This classification system and subsequent line callout (specification) are intended to be a means of calling out plastic materials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection can be made by those having expertise in the plastics field after careful consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the inherent properties of the material other than those covered by this specification, and the economics. 1.3 The properties included in this specification are those required to identify the compositions covered. Other requirements necessary to identify particular characteristics important to specialized applications are to be specified using the suffixes as given in Section 5. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. Note 1: This standard combines elements from ISO 1622-1-2 and ISO 2897-1-2, but is not equivalent to either ISO standard.

Standard Classification System and Basis for Specification for Polystyrene and Rubber-Modified Polystyrene Molding and Extrusion Materials (PS)

GOST 21970-2015 不饱和聚脂树脂. 最高固化温度的测定方法

Unsaturated polyester resins. Methods for determination of maximum temperature during the setting

GOST R 56752-2015 树脂和环氧化合物. 环氧基团质量分数和环氧当量的测定方法

Resins and epoxy compounds. Methods for determination of epoxy groups mass fraction and epoxy equivalent

GSO ISO 18280:2014 塑料 环氧树脂 测试方法

Epoxy resins are a family of synthetic resins, including products, which range from viscous liquids to high-melting solids. The resin molecule contains as reactive sites one or more oxirane or epoxy groups, usually in the form of a glycidyl group. The most commercially important resin is the glycidyl ether of bisphenol A, produced by the condensation of epichlorohydrin and diphenylpropane (bisphenol A). Epoxy resins with different characteristics are also produced commercially by reacting epichlorohydrin with other materials. To be of use, the resins must be crosslinked with a curing agent or hardener. The choice of curing agent is of importance in designing an epoxy resin system for a given application. The major reactive groups in the resin, the epoxy and the hydroxyl groups, react with many other groups so that many types of chemical substance can be used as curing agents. These include acid anhydrides, aliphatic and aromatic amines and polyaminoamides. Some curing agents will crosslink the resin at ambient temperatures while others require the application of heat. This International Standard provides an overview of the ISO test methods used to characterize epoxy resins. The listed property to be determined in any given case depends on agreement between the supplier and customer.

Plastics -- Epoxy resins -- Test methods

GSO ISO 14528-2:2014 塑料 脲醛化合物 (PF-PMCS) 的粉末形成 第2部分：测试样品的制备和性能测定

This part of ISO 14528 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of powder moulding compounds (PMCs). Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given here. Procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize PMCs are listed. The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for, or of particular significance to, PMCs are also included in this part of ISO 14528, as are the designatory properties found in ISO 14528-1. In order to obtain reproducible and comparable test results, it is necessary to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.

Plastics -- Melamine-formaldehyde powder moulding compounds (MF-PMCs) -- Part 2: Preparation of test specimens and determination of properties