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  • ISO 182-1-1990 - 中外标准 - - 1990/12 - 现行
    Intended primarily as a simple and rapid quality-control test during the manufacture and conversion of PVC compounds. Suitable for coloured compounds. Is not recommended for compounds in the form of dry blends. The determination is carried out on a sample of the PVC compound which is maintained at an agreed temperature in still air until the colour of a Congo red paper held above it changes from red to blue. If universal indicator paper is used, the colour change is that corresponding to pH 3. The time required for the colour change is taken to be the stability time, ts. Together with ISO 182-2, replaces and cancels ISO Recommendation R 182:1970.
    塑料聚氯乙烯热稳定性试验pH值测定高温试验热试验DecompositionDefinitionsDeteriorationDeterminationHigh-temperature testingInspectionInspection by attributesMouldings (shaped section)pH measurementPlasticsPolyvinyl chlorideTestingThermal properties of materialsThermal stabilityThermal testingVinyl chloride
  • ISO 9054-1990 - 中外标准 - - 1990/12 - 现行
    Contains the basic test procedures for the determination of the physical properties of these plastics. Also specifies the primary methods to be used for comparison of materials similar to materials as defined in clause 3. Likewise permits the use of the same test methods, when found to be suitable for the assessment of the properties of products of different thickness, when agreed upon by the supplier and the purchaser.
    试验泡沫橡胶多孔材料塑料Cellular materialsClimateDefinitionsDensityFoamed rubberPhysical propertiesPlasticsRigidRigid foamsSelfskinningStructural foamsTest specimensTesting
  • ISO 182-2-1990 - 中外标准 - - 1990/12 - 现行
    May be used as a quality-control test during manufacture and conversion of PVC compounds and for coloured compounds. Is not recommended for compounds in the form of dry blends. Defines the stability time. The principle consists in exposing a sample of the material at an agreed temperature in a gas stream, followed by absorption of the hydrogen chloride evolved in a 0.1 mol/l solution of sodium chloride. The amount of hydrogen chloride evolved is measured by recording the change in pH of the sodium chloride solution. Figures show the general arrangement of apparatus and details of the dehydrochlorination cell. Together with three other parts of ISO 182, cancels and replaces ISO Recommendation R 182:1970.
    热稳定性塑料高温试验聚氯乙烯pH值测定热试验试验CopolymersDecompositionDefinitionsDeteriorationDeterminationHigh-temperature testingHomopolymersHydrogen chlorideInspectionInspection by attributesMouldings (shaped section)pH measurementpH metersPlasticsPolyvinyl chlorideQuality controlStabilityTestingThermal properties of materialsThermal stabilityThermal testingVinyl chloride
  • ISO 8510-1-1990 - 中外标准 - - 1990/12 - 废止
    Particularly suitable for use with less flexible adherends for which a 180 ° peel test is not suitable because the adherends crack, break or delaminate. A bonded assembly of two adherends is prepared using the adhesive under test. The adherends are then pulled apart at a steady rate, starting at the open end of the bond, in such a way that separation occurs progressively along the length of the bonded adherends. The force is applied approximately normal to the plane of the bond, through the separated part of the flexible adherend. A figure shows a schematic diagram.
  • ISO 8510-2-1990 - 中外标准 - - 1990/12 - 作废
    Suitable for use with less flexible adherends. The principle consists in preparing a bonded assembly of two adherends, using the adhesive under test. The adherends are then pulled apart at a steady rate, starting at the open end of the bond, in such a way that separation occurs progressively along the length of the bonded adherends. The force is applied substantially parallel to the plane of the bond, through the separated part of the flexible adherend. A figure shows a schematic diagram.
  • ISO 585-1990 - 中外标准 - - 1990/12 - 现行
    This determination may be required for the calculation of the dry mass used in analytical methods. Applies only to products with a moisture content of not more than 10 %. The principle consists in drying a test portion at 105 ° centigrade in a thermostatic oven, then weighing. The moisture content is calculated from the loss of mass of the test portion. Cancels and replaces the first edition ISO 585:1982, of which it constitutes a minor revision.
    湿度试验乙酸纤维素含量测定塑料Cellulose acetateDetermination of contentDetermination of moistureHumidityMathematical calculationsMoisture contentsPlasticsSolid matterTest equipmentTestingUnplasticized
  • ISO 9944-1990 - 中外标准 - - 1990/12 - 现行
    Important for applications in which such resins are used as impregnating materials. The principle is based on addition of an acetone/water mixture to a solution of the resin. The precipitate thus produced is allowed to settle, and the conductance of the suspension remaining above the resin is measured. The conductivity, expressed in microsiemens per centimetre, is then calculated from the measured conductance.
    热塑性的试验电导性酚醛树脂试样制备试剂浸渍物树脂塑料测定浸渍材料电气试验AlkalinityArtificial resinsAutomatsB-periodsBulk densityChemicalChemical analysis and testingChemical propertiesChemical reactionsConductivityDensityDeterminationDetermination of contentElectrical conductivityElectrical testingExtractsFormaldehydeGelationGelling timeHardnessHexamethylene tetramineImpregnating materialsLiquidLiquid materialsLiquidsMaterialsMaterials testingNon-volatile matter determinationPaintsParticle size distributionpHPhenolPhenolic plasticsPhenolic resinsPhenoplast moulded materialPlasticsPropertiesReaction resinsReactivityReagentsReference methodsResinsSolutesSolutionsSpecimen preparationSurface platesTemperature dependenceTest equipmentTest plateTestingTesting proceduresThermoplasticThermoplastic polymersThermosetting polymersTime measurementViscosityViscosity measurementWaterWater content determination
  • ISO 1061-1990 - 中外标准 - - 1990/11 - 现行
    The free acidity determined by this method includes acidity extractable by water and acidity due to acidic groups directly attached to the cellulose acetate, e.g. carboxyl groups. This method is not suitable for cellulose acetate containing any additives which may affect the test. The principle consists in treating a test portion of cellulose acetate with water and titrating the resultant solution with sodium hydroxide solution. The free acidity is calculated as the percentage, by mass, of free acetic acid in the cellulose acetate. This second edition cancels and replaces the first edition ISO 1061:1975, of which it constitutes a minor technical revision.
    含量测定化学分析和试验塑料酸滴定法乙酸纤维素酸度测定AcidimetryAcidityAcidsCellulose acetateChemical analysis and testingDeterminationDetermination of contentDistillationPlasticsTestingWater
  • ISO 1600-1990 - 中外标准 - - 1990/11 - 现行
    This method is intended for cellulose acetate having an acetic acid yield of 54 % ± 2.5 %. It may also be applicable to other transparent plastics which are not strongly coloured and which can be moulded under the specified conditions. Two measurements of absorption, one at the red end and one at the blue end of the visible spectrum, are sufficient to characterize the absorption of light by the material. Describes the preparation of the material, two methods for the incorporation of plasticizers and die moulding of the test specimen. For the determination of the initial optical density, specimens given the smallest practicable amount of heating are used. The optical density at 25 mm thickness is calculated as the initial light absorption. The light absorption after further heating is obtained by similar measurements on specimens prepared using a longer period of heating during moulding.
    试验纤维素衍生物乙酸纤维素吸收塑料AbsorptionBushingsCellulose acetateCellulose derivativesCompacts (materials)DeterminationHeatingLightMeasurementOptical absorptionPlasticsPropertiesReagentsTest resultsTest specimensTestingTests
  • ISO 8257-2-1990 - 中外标准 - - 1990/11 - 作废
    No figures are quoted for these properties. Those required for the designation of PMMA materials are given in ISO 8257-1. The values determined in accordance with this document will not necessarily be identical to those obtained using specimens of different dimensions and/or prepared by different procedures. They may also be influenced by colorants and other additives. The values of the properties depend on the moulding compound, the shape, the test method and the state of anisotropy. Methods for testing the mechanical, thermal and other relevant properties are given in a table. When measuring the properties, test specimens shall be subjected to pre-treatment by conditioning.
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