Map Viewing Service (WMS) of the dataset: DDT 91 — Perimeters of the HERAKLES Technologiotic Prevention Plan (PPRT) — ISOCHEM.

The HERAKLES — ISOCHEM PPRT was approved on 19 September 2014.
This dataset contains the boundaries at the different stages of the development of the PPRT. The characteristic of these perimeters is to be the consequence of an official act and to produce their effects from a specified date. This is the following:
— prescribed perimeter in the PPRT’s prescription order,
— scope of study which corresponds to the envelope in which the hazards were studied.
— scope of risk exposure that corresponds to the scope regulated by the approved RPP. This approved perimeter is a utility easement (PM3 for PPRTs).

HERAKLES — ISOCHEM PPRT 数据集于2014年9月19日获批。本数据集收录了PPRT开发各阶段的边界范围。此类边界范围的核心特征为：由官方公文确立，并自指定日期起生效，具体如下：
— PPRT批复文件中规定的法定边界；
— 研究范围：即开展危险源辨识研究所覆盖的区域包络范围；
— 风险暴露范围：即经批准的RPP所规制的适用范围，该获批边界属于公用役地范畴（针对PPRT的编码为PM3）。