GB/T 3554-2008 in English

《GB/T 3554-2008石油蜡含油量测定法》由TC280（全国石油产品和润滑剂标准化技术委员会）归口，TC280SC3（全国石油产品和润滑剂标准化技术委员会石油蜡类产品分会）执行，主管部门为国家标准化管理委员会。
本标准于１９８３年首次发布。本标准修改采用美国试验与材料协会标准ＡＳＴＭ Ｄ７２１―２００６《石油蜡含油量测定法》。本标准根据ＡＳＴＭ Ｄ７２１―２００６重新起草。 本标准规定了石油蜡含油量的测定方法，适用于冻凝点在30℃以上，含油量低于15℃的石油蜡。对于某些含油量大于5%，在丁酮中不能完全溶解而分层的石油蜡本方法是不适用的。 本标准代替ＧＢ／Ｔ３５５４―１９８３《石油蜡含油量测定法》，本标准与ＧＢ／Ｔ３５５４―１９８３的主要差异：
―――增加了“意义和用途”章；
―――删除了温度计规格说明；
―――增加了图２恒温冷浴规格；
―――删除了表１丁酮规格；
―――增加了“样品”章；
―――附录Ａ 中增加适当的压力表及相关计算公式。

1 Scope
1.1 This Standard specifies the standard test method for oil content of petroleum waxes. This method is applicable to the petroleum wax of which the congealing point is above 30℃ and the oil content is below 15%. This method is not applicable to some petroleum waxes that have more than 5% oil content and are layered in butanone due to incomplete solution.
1.2 International system of units (SI) is adopted in this standard.
1.3 This standard may involve some hazardous materials, equipment and operation, but doesn't purport to address all of the safety concerns, if any, associated with its use. Therefore, it is the responsibility of the user of this standard to establish appropriate safety and heath practices and formulate the management systems with applicability prior to use.