共找到 1195 条与 热固性塑料 相关的标准,共 80 页
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, health, and environmental 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. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Practice for Separation and Identification of Poly(Vinyl Chloride) (PVC) Contamination in Poly(Ethylene Terephthalate) (PET) Flake
BS ENISO 3671 Plastics. Aminoplastic moulding materials. Determination of volatile matter
Plastics — Unsaturated-polyester resins(UP-R) — Part 2: Preparation of test specimens and determination of properties
Plastics — Unsaturated-polyester resins(UP-R) — Part 1: Designation system
Plastics — Determination of apparent density of material that can be poured from a specified funnel
Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia
Plastics — Epoxy compounds — Determination of epoxy equivalent
Plastics — Epoxy resins — Part 1: Designation
Plastics — Determination of apparent density of material that can be poured from a specified funnel
Plastics — Epoxy resins — Part 1: Designation
Plastics — Unsaturated-polyester resins(UP-R) — Part 1: Designation system
Plastics — Epoxy compounds — Determination of epoxy equivalent
Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia
Plastics — Unsaturated-polyester resins(UP-R) — Part 2: Preparation of test specimens and determination of properties
BS EN ISO 60. Plastics. Determination of apparent density of material that can be poured from a specified funnel
本文件规定了电气绝缘用模塑料(简称模塑料)的基本要求、技术要求、试验方法、检验规则、标志、包装、运输和贮存及质量承诺。 本文件适用于用酚醛树脂为基础聚合物,以木粉和矿物粉混合料为填料/增强材料,混配加工而成的模塑料。
Powder phenolic molding plastics for electrical insulation
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Test Method for Acid Number of Styrene-Maleic Anhydride Resins
1.1 This test method covers the measurement of the free acidity present in certain alkali-soluble resins. 1.2 This test method is not suitable for styrene-maleic anhydride resins. 1.3 The resin manufacturer should specify whether or not this test method may be used for his product(s). 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Standard Test Method for Acid Number of Certain Alkali-Soluble Resins
Testing methods laminated thermosetting high-pressure decorative sheets
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