How long must DCS data be retained in accordance with specifications or regulatory requirements?
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If there is no strict requirement regarding how long DCS data must be retained in hazardous materials companies, this creates an opportunity for company owners to take advantage of it; in the event of any problems that could harm them, they can simply delete the data secretly. So **it can’t be that stupid; there must surely be strict requirements that DCS data needs to be retained for a certain period of time. What are the corresponding standards?
This post was last edited by gaiyin47 on 2021-5-7 at 10:29. It is required to back up the hard drive and store the backups in a different location, which means having at least two backup drives and performing backups once a year. Program backups require a dedicated storage device, to be performed once every six months. Backup operations must be recorded in a ledger. Any changes made during the two backups also need to be recorded. It’s almost impossible to delete it secretly. I’m not sure what standards dictate this; it’s what the Emergency Management Bureau and the expert team require during their inspections.
Interim Provisions on the Supervision and Management of Major Hazard Sources of Hazardous Chemicals (Issued by the State Administration of Work Safety under Order No. 40 on August 5, 2011; amended by Order No. 79 of the State Administration of Work Safety on May 27, 2015) Chapter 3: Safety Management Article 13: Hazardous chemical enterprises shall, based on the types and quantities of hazardous chemicals that constitute major hazard sources, as well as the production and usage processes (methods) or relevant equipment and facilities, establish and improve safety monitoring systems in accordance with the following requirements to enhance control measures: (1) Major hazard sources shall be equipped with systems for continuous collection and monitoring of information such as temperature, pressure, liquid level, flow rate, and composition, as well as detection and alarm devices for leaks of flammable gases and toxic and harmful gases. Such systems shall also have functions such as remote data transmission, continuous recording, accident early warning, and information storage； Class 1 or Class 2 major hazard sources are equipped with an emergency shutdown function. The electronic data recorded shall be retained for no less than 30 days ；
This data isn’t that easy to delete
#You can take a look at SH/T3092-2013 7.5.2.2.d)