《石油化工企业卫生防护距离》作为新的石油化工行业标准，编号ＳＨ３０９３－１９９９，自１９９９年９月１日起实施，原标准ＳＨＪ１０７０－８６同时废止。该标准分为两章和一个附录：第一章为总则，主要介绍制定该标准的原则、标准的适用范围及与其他标准的关系；第二章为? As the new petrochemical industry standard, No. SH3093-1999, “Health Protection Distance of Petrochemical Enterprises” has been in effect since September 1, 1999. The original standard SHJ1070-86 is repealed at the same time. The standard is divided into two chapters and an appendix: The first chapter is the general principle, mainly introduces the principle of making the standard, the scope of the standard and the relationship with other standards;