ISO 11127-2:2020标准是ISO 11127系列标准的一部分，该系列标准规定了用于清理钢材表面的喷砂清理磨料的测试方法。该标准主要用于测定非金属喷砂清理磨料的粒度分布，以确保磨料的质量符合要求。

该标准要求使用激光粒度分析仪来测定非金属喷砂清理磨料的粒度分布。在测试过程中，需要将磨料样品放入激光粒度分析仪中，通过激光散射来测定磨料的粒度分布。测试结果应该以粒径分布曲线的形式呈现。

除了粒度分布之外，该标准还规定了其他一些测试要求，例如磨料的密度、水分含量、pH值等。这些测试要求可以帮助确定磨料的物理和化学性质，以确保磨料的质量符合要求。

总的来说，ISO 11127-2:2020标准是非常重要的，因为它可以帮助确保非金属喷砂清理磨料的质量符合要求。这对于清理钢材表面非常重要，因为磨料的质量会直接影响到清理效果和涂层的附着力。

相关标准
- ISO 11127-1:2011 Preparation of steel substrates before application of paints and related products — Test methods for non-metallic blast-cleaning abrasives — Part 1: General introduction and classification
- ISO 11127-3:2011 Preparation of steel substrates before application of paints and related products — Test methods for non-metallic blast-cleaning abrasives — Part 3: Determination of apparent density
- ISO 11127-4:2011 Preparation of steel substrates before application of paints and related products — Test methods for non-metallic blast-cleaning abrasives — Part 4: Determination of moisture
- ISO 11127-5:2011 Preparation of steel substrates before application of paints and related products — Test methods for non-metallic blast-cleaning abrasives — Part 5: Determination of water-soluble contaminants by conductivity measurement
- ISO 11127-6:2011 Preparation of steel substrates before application of paints and related products — Test methods for non-metallic blast-cleaning abrasives — Part 6: Determination of water-soluble chlorides