ISO 8004:1985标准是针对铝生产中使用的碳素材料——石油焦和焦炭的密度测定方法。该标准采用比重法,使用二甲苯作为测量介质。该方法适用于石油焦和焦炭,但不适用于其他碳素材料。
在实验中,首先需要将样品加入到已知质量的比重瓶中,然后加入二甲苯,使样品完全浸没在液体中。接着,将比重瓶放入恒温水浴中,使温度稳定在20℃左右。等待比重瓶内的气泡完全排出,然后记录比重瓶的质量。最后,将比重瓶中的液体倒入容量瓶中,记录容量瓶中液体的体积。通过计算比重瓶中样品和二甲苯的密度,可以得到样品的密度。
该标准的实验操作简单,但需要注意的是,比重瓶和容量瓶必须在实验前进行干燥和校准,以保证实验结果的准确性。
相关标准
ISO 8005:1987 Carbonaceous materials for the production of aluminium — Calcined coke and calcined carbon products — Determination of the particle size distribution
ISO 8006:1984 Carbonaceous materials for the production of aluminium — Calcined coke and calcined carbon products — Determination of total sulfur — High temperature combustion method
ISO 8007:1984 Carbonaceous materials for the production of aluminium — Calcined coke and calcined carbon products — Determination of moisture content — Karl Fischer method
ISO 8008:1984 Carbonaceous materials for the production of aluminium — Calcined coke and calcined carbon products — Determination of ash content
ISO 8009:1984 Carbonaceous materials for the production of aluminium — Calcined coke and calcined carbon products — Determination of trace elements by flame atomic absorption spectrometry