G31 合成树脂、塑料基础标准与通用方法 标准查询与下载

DIN EN ISO 10927:2018-10 塑料.用辅助矩阵激光吸附/电离飞行时间质谱法测定聚合物物种的分子质量和分子质量分布

Dieses Dokument legt ein allgemeines Verfahren zum Bestimmen der mittleren Molmasse und der Molmassenverteilung von Polymeren (siehe Literaturhinweis [1]) in einem Molmassenbereich von 2 000 g ⋅ mol−1 bis 20 000 g ⋅ mol−1 durch die matrixunterstützte Laser-Desorptions/Ionisations-FlugzeitMassenspektrometrie (MALDI-TOF-MS) fest. Die mittleren Molmassen und Molmassenverteilungen werden über eine Kalibrierkurve berechnet, die mit Hilfe von synthetischen und/oder Biopolymerstandards erstellt wird. Daher handelt es sich um eine relative Methode. Das Verfahren ist nicht für Polyolefine oder Polymere mit einer Polydispersität > 1,2 anwendbar.

Plastics - Determination of the molecular mass and molecular mass distribution of polymer species by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) (ISO 10927:2018); German version EN ISO 10927:2018

JIS K 7225:2018 刚性多孔塑料.水蒸气传输特性的测定

Rigid cellular plastics -- Determination of water vapour transmission properties

DIN EN ISO 29988-2:2018 塑料. 聚甲醛模塑和挤塑材料. 第2部分: 试样制备和性能测定 (ISO 29988-2-2018); 德文版本 EN ISO 29988-2-2018

This part of ISO 29988 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polyoxymethylene moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given. Procedures and conditions are described for the preparation of test specimens, and procedures are given for measuring properties of the materials from which these specimens are made. Properties and test methods which are suitable and necessary to characterize polyoxymethylene moulding and extrusion materials are listed. The properties have been selected from the general test methods in ISO 10350-1:1998. Other test methods in wide use for, or of particular significance to, these moulding and extrusion materials are also included in this part of ISO 29988 as designatory properties specified in ISO 29988-1: melt flow rate and tensile modulus. In order to obtain reproducible and comparable test results, it is necessary to use the methods of specimen preparation and conditioning. The specimen dimensions and the test procedures are specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.

Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 29988-2:2018); German version EN ISO 29988-2:2018

DIN EN ISO 29988-1:2018 塑料.聚甲醛模塑和挤塑材料.第1部分:命名体系和基本规范(ISO 29988-1-2018); 德文版本 EN ISO 29988-1-2018

This part of the standard establishes a system of designation for polyoxymethylene (POM) thermoplastic materials, which may be used as the basis for specifications. Polyoxymethylene materials are thermoplastic materials composed principally of long-chain synthetic homopolymers and copolymers of formaldehyde. The repeating unit in the molecular chain is - CH20 - as an integral part of the main polymer chain resulting from polymerization of formaldehyde.

Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 1: Designation system and basis for specifications (ISO 29988-1:2018); German version EN ISO 29988-1:2018

DIN 53477:2018 塑料的试验.用干筛析法测定模塑材料的颗粒大小和分布

This document specifies the determination of particle size of moulding materials by dry sieving analysis.

Testing of plastics - Determination of particle size distribution of moulding materials by dry sieving analysis

DIN 53435:2018 塑料试验.对测力试件作弯曲试验和冲击试验

This standard specifies two different test methods - the dynamic impact bending test and the (quasi-)static bending test - as well as the applied Dynstat test pieces and the Dynstat Apparatus.

Testing of plastics - Bending test and impact test on dynstat test specimens

ISO 13586:2018 塑料.断裂韧性的测定G^IC)和K^IC.线弹性断裂力学法

This document specifies the principles for determining the fracture toughness of plastics in the crackopening mode (mode I) under defined conditions. Two test methods with cracked specimens are defined, namely three-point-bending tests and compact-specimen tensile tests in order to suit different types of equipment available or different types of material. The methods are suitable for use with the following range of materials, including their compounds containing short fibres of the length ≤ 7,5 mm: — rigid and semi-rigid thermoplastic moulding, extrusion and casting materials; — rigid and semi-rigid thermosetting moulding and casting materials. In general, short fibre lengths of 0,1 mm to 7,5 mm are known to cause heterogeneity and anisotropy in the crack tip fracture process zone. Therefore, where relevant, Annex B offers some guidelines to extend the application of the same testing procedure, with some reservations, to rigid and semi-rigid thermoplastic or thermosetting plastics containing such short fibres. Certain restrictions on the linearity of the load-displacement diagram, on the specimen width and on the thickness are imposed to ensure validity (see 6.4) since the scheme used assumes linear elastic behaviour of the cracked material and a state of plane strain at the crack tip. Finally, the crack needs to be sharp enough so that an even sharper crack does not result in significantly lower values of the measured properties.

Plastics - Determination of fracture toughness (GIC and KIC) - Linear elastic fracture mechanics (LEFM) approach

BS ISO 13586:2018 塑料.断裂韧性的测定(G_ic和K_ic).线性弹性断裂力学(LEFM)法

Plastics. Determination of fracture toughness (GIC and KIC). Linear elastic fracture mechanics (LEFM) approach

BS ISO 17422:2018 塑料.环境问题.标准中环境内容的一般导则

Plastics. Environmental aspects. General guidelines for their inclusion in standards

NF EN ISO 10927:2018 塑料 在基质辅助激光解吸/电离(MS-MALDI-TOF)后通过质谱、飞行时间测定聚合物的分子量和分子量分布

Le présent document spécifie une méthode générale permettant de déterminer la masse moléculaire moyenne et la distribution des masses moléculaires moyennes de polymères (voir Référence [1]) comprises entre 2 000 g ? mol• 1 et 20 000 g ? mol• 1 par spectrométrie de masse, à temps de vol, après désorption/ionisation laser assistée par matrice (SM-MALDI-TOF). Les masses moléculaires et les distributions des masses moléculaires moyennes sont calculées à partir d'une courbe d'étalonnage établie à l'aide d'étalons de polymères synthétiques et/ou de biopolymères. Par conséquent, la présente méthode est classée comme méthode relative et n'est pas applicable aux polyoléfines et aux polymères ayant une polydispersité > 1,2.

Plastics - Determination of molecular mass and molecular mass distribution of polymers by time-of-flight mass spectrometry after matrix-assisted laser desorption/ionization (MS-MALDI-TOF)

ISO 14855-2:2018 在控制复合条件下塑料材料的基本需氧菌生物降解性的测定.释放二氧化碳的分析法.第2部分:实验室规模试验中释放二氧化碳的比重测量

Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test

BS ISO 15033:2018 塑料.用高效液相色谱分析法(HPLC)测定己内酰胺及其环状和线性齐聚物

Plastics. Determination of caprolactam and its cyclic and linear oligomers by HPLC

JIS K 6922-1:2018 塑料制品.聚乙烯(PE)制模和挤压材料.第1部分:标识系统和规范基础

Plastics -- Polyethylene (PE) moulding and extrusion materials -- Part 1: Designation system and basis for specifications

JIS K 6922-2:2018 塑料.聚乙烯(PE)模塑和挤制材料.第2部分:试验样品的制备和特性的测定

Plastics -- Polyethylene (PE) moulding and extrusion materials -- Part 2: Preparation of test specimens and determination of properties

JIS K 6921-1:2018 塑料制品.聚丙烯(PP)制模和挤压材料.第1部分:标识系统和规范基础

Plastics -- Polypropylene (PP) moulding and extrusion materials -- Part 1: Designation system and basis for specifications

BS EN ISO 2555:2018 塑料 液态或乳液或分散体形式的树脂 单筒式旋转粘度计法测定表观粘度

Plastics. Resins in the liquid state or as emulsions or dispersions. Determination of apparent viscosity using a single cylinder type rotational viscometer method

BS EN ISO 877-3:2018 塑料 暴露于太阳辐射的方法 利用集中太阳辐射强化风化

Plastics. Methods of exposure to solar radiation. Intensified weathering using concentrated solar radiation

NF T50-009-1:2018 塑料.聚甲醛模塑和挤塑材料.第1部分:规范用命名系统和依据

Plastics - Polyoxymethylene (POM) moulding and extrusion materials - Part 1 : designation system and basis for specifications

ISO 15033:2018 塑料.用高效液相色谱法(HPLC)测定己内酰胺及其环状和线性齐聚物

This document describes a high-performance liquid chromatography (HPLC) method for determining the concentrations of cyclic oligomers of caprolactam, from 0,01 % by mass upwards, and linear oligomers of caprolactam, from 5 mg/kg upwards, both up to and including the hexamer of caprolactam (n = 6), in samples of polyamide 6, caprolactam and mixtures of rearrangement products in water. A second, significantly faster, HPLC method is included for determination of caprolactam and its cyclic dimer, based on the same principle and using the same equipment as the first method.

Plastics - Determination of caprolactam and its cyclic and linear oligomers by HPLC

ISO 17422:2018 塑料.环境方面.标准中环境方面的一般指南

This document provides a structure for inclusion of environmental aspects in standards for plastics products. It proposes an approach which is directed at minimizing any adverse environmental impact without detracting from the primary purpose of ensuring adequate fitness for use of the products under consideration. The guidance provided by this document is intended primarily for use by standards writers. Over and above its primary purpose, however, this document provides guidance of value to those involved in design work and other activities where environmental aspects of plastics are being considered. NOTE This document is intended to promote the following practices: a)    the use of techniques for identifying and assessing the environmental impact of technical provisions in standards, and for minimizing their adverse effects; b)   the adoption of good practices such as: 1)   procedures for pollution avoidance, e.g. through end-of-life options and its proper management; 2)   material and energy conservation in the light of the intended use (and foreseeable misuse) of the product; 3)   safe use of hazardous substances; 4)   avoidance of technically unjustifiable restrictive practices; 5)   promotion of performance criteria rather than exclusion clauses such as are based, for example, only on chemical composition criteria; 6)    use of renewable resources and minimization of the use of non-renewable resources, if the life cycle assessment shows favourable; c)    the adoption of a balanced approach in standards development to issues such as environmental impact, product function and performance, health and safety, and other regulatory requirements; d)    the regular review and revision of existing standards in the light of technical innovations, permitting improvement in the environmental impact of products and processes; e)   the application of life cycle analytical approaches wherever applicable and technically justifiable.

Plastics - Environmental aspects - General guidelines for their inclusion in standards