防护服.对液态化学制品的防护.材料抗液体渗透性的试验方法

[中文适用范围]： 本标准规定了防护服材料对液体化学品（主要是低挥发性化学品）的渗透性、吸收性和排斥性指标的测量方法。 通过这种测试方法评估材料潜在性能的两个水平，以满足可能的防护要求： a) 在最小压力下，喷雾液滴在材料表面沉积直至聚结或偶尔出现小滴； b) 由一次小量飞溅或低压射流造成的污染，允许有足够的时间脱去防护服或采取其他必要的措施，以消除防护服保留的化学物质对穿戴者造成的任何危害，或者在压力较大的情况下适用于由于穿着者的自然运动（手臂、膝盖、肩膀处衣物受污染区域的弯曲）以及与受污染表面接触（例如走过喷过喷雾的树叶）而导致的衣服材料表面上的液体污染物。 [外文原描述]： ISO 6530:2005 specifies a test method for the measurement of indices of penetration, absorption and repellency for protective clothing materials against liquid chemicals, mainly chemicals of low volatility. Two levels of the potential performance of materials are assessed by this method of testing to meet with possible requirements for protection against the following: deposition on the surface of a material, at minimal pressure, of spray droplets up to coalescence or occasional small drips; contamination by a single low-volume splash or low-pressure jet, allowing sufficient time to divest the clothing or take other action as necessary to eliminate any hazard to the wearer from chemical retained by the protective garment, or, in circumstances where pressure is applied to liquid contaminants on the surface of the clothing material as a result of natural movements of the wearer (flexing of contaminated areas of clothing at arms, knees, shoulders) and contact with contaminated surfaces (e.g. walking through sprayed foliage).