ISO 16869:2008 塑料 塑料配方中抑制真菌化合物的有效性评估

标准编号：ISO 16869:2008

中文名称：塑料 塑料配方中抑制真菌化合物的有效性评估

英文名称：Plastics — Assessment of the effectiveness of fungistatic compounds in plastics formulations

发布日期：2008-06

标准范围

ISO 16869:2008规定了一种测定抑菌化合物在保护塑料配方中易感成分（如增塑剂、稳定剂等）的有效性的方法。该方法证明了塑料产品是否能有效抵御真菌攻击。通过目视检查进行评估。本试验适用于厚度不超过10 mm的薄膜或板材形式的任何塑料制品。此外，可测试多孔材料，如塑料泡沫，前提是其为上述形式。在这个过程中，必须使从基质中迁移出来的杀菌剂扩散到最低限度。与ISO 846相比，测试薄膜没有喷洒真菌孢子悬浮液，而是覆盖一层含有孢子的测试琼脂。研究发现，这可以使孢子更好地分布，并为孢子在通常疏水的塑料表面萌发提供充足的水分。

ISO 16869:2008 specifies a method for determining the effectiveness of fungistatic compounds in protecting susceptible ingredients like plasticizers, stabilizers, etc., in plastics formulations. The method demonstrates whether or not a plastic product is actively protected against fungal attack.The evaluation is by visual examination.The test is applicable to any articles made of plastic that are in the form of films or plates no thicker than 10 mm. In addition, porous materials such as plastic foams may be tested provided that they are in the above-mentioned form.A minimum diffusion of the fungicides that migrate out of the matrix is necessary with this procedure.In contrast to ISO 846, the test films are not sprayed with a fungal spore suspension but covered with a layer of test agar containing spores. It has been found that this leads to a better distribution of the spores as well as providing a good supply of water necessary for spore germination on plastic surfaces that are normally hydrophobic.

标准预览图