ISO 806:2004 主要用于制铝的氧化铝.在1000℃和1200℃时质量损失的测定

标准编号：ISO 806:2004

中文名称：主要用于制铝的氧化铝.在1000℃和1200℃时质量损失的测定

英文名称：Aluminium oxide primarily used for the production of aluminium — Determination of loss of mass at 300 degrees C and 1 000 degrees C

发布日期：2004-10

标准范围

ISO 806:2004规定了一种测定氧化铝在300°C下加热时质量损失和在1000°C下点火时进一步质量损失的方法。根据行业惯例，这些质量损失通常分别称为“水分（MOI）”和“点火损失（LOI）”。该方法适用于煅烧氧化铝，300°C时质量损失为0.2%至5%，1000°C时质量损失为0.1%至2%。该方法规定，在“接收”的基础上对样品进行处理，以测定氧化铝样品中的实际MOI和LOI。在不需要“收到时”结果的情况下，为了提高分析精度，可以在分析之前对样品进行“空气平衡”。“空气平衡”会极大地影响MOI结果，并显著改变LOI结果。讨论了“空气平衡”过程及其影响。还讨论了仪器方法。

ISO 806:2004 specifies a method for the determination of loss of mass on heating of aluminium oxide at 300 °C and further loss of mass on ignition at 1 000 °C. By industry convention, these mass losses are often referred to as "moisture (MOI)" and "loss on ignition (LOI)" respectively.This method is suitable for calcined alumina in the range 0,2 % to 5 % loss of mass at 300 °C and 0,1 % to 2 % loss of mass at 1 000 °C.This method provides for samples to be treated on an "as-received" basis for determination of actual MOI and LOI in alumina samples. To improve precision of analysis in cases where "as-received" results are not required, samples can be "air-equilibrated" prior to analysis. "Air-equilibration" can greatly affect MOI results and significantly alter LOI results. The "air-equilibration" procedure and its effects are discussed.Instrumental methods are also discussed.

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