ISO 4080:2009 橡胶和塑料软管及其组合件 透气性的测定

标准编号：ISO 4080:2009

中文名称：橡胶和塑料软管及其组合件 透气性的测定

英文名称：Rubber and plastics hoses and hose assemblies — Determination of permeability to gas

发布日期：2009-12

标准范围

ISO 4080:2009规定了三种方法，用于确定在指定时间内通过橡胶或塑料软管或管道长度扩散的气体体积。方法1:用于测定整个软管或管道长度（不包括端部配件）对试验气体的渗透性。相对于软管或管道的长度计算渗透率。方法2:用于确定软管/配件界面处的渗透性。当气体通常从切割端的织物增强材料中逸出时，在确定具有未刺破盖的软管的渗透性特性时，使用该方法。相对于软管的长度计算渗透率。方法3:用于精确测定软管或软管组件对试验气体的渗透性。相对于软管衬里的表面积计算渗透率。这些方法仅适用于不溶于水的气体。

ISO 4080:2009 specifies three methods for the determination of the volume of gas diffusing through a rubber or plastics hose or length of tubing in a specified time.

• Method 1: For determining the permeability of the complete hose or length of tubing, excluding end-fittings, to the test gas. The permeability is calculated with respect to the length of the hose or tubing.
• Method 2: For determining the permeability at the hose/fitting interface. This method is used when determining the permeability characteristics of hoses with an unpricked cover, when the gas usually issues from the textile reinforcement at the cut ends. The permeability is calculated with respect to the length of the hose.
• Method 3: For determining precisely the permeability of a hose or hose assembly to the test gas. The permeability is calculated with respect to the surface area of the hose lining.

标准预览图