Storage temperature for styrene and butadiene

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In the 2013 List of Hazardous Chemicals Subject to Special Supervision, butadiene is classified as a substance prone to self-polymerization; such self-polymers can explode at temperatures between 60 and 80°C, or under exposure to light, impact, or friction. When the ambient temperature in summer exceeds 30°C, cooling spray measures should be applied to the storage tanks. Store in a cool, well-ventilated warehouse; the temperature inside the warehouse should not exceed 30°C. Styrene materials have the property of self-polymerization, and stabilizers are usually added. Store in a cool, well-ventilated warehouse. Keep away from flames and heat sources. The temperature in the warehouse should not exceed 37°C. ”In the “Notice from the General Office of the Ministry of Emergency Management on Issuing the ‘Guidance Catalogue on Key Matters for Law Enforcement Inspections on Work Safety in Hazardous Chemicals Enterprises in 2023’”, the key matters for such law enforcement inspections include “...the storage temperature of styrene exceeding 20°C, and the storage temperature of butadiene exceeding 27°C...” Which one should be applied? Similarly, acrylonitrile is also listed in the “2013 List of Hazardous Chemicals Subject to Strict Regulation,” which stipulates that the temperature in storage areas should not exceed 30°C. It also faces the same confusion.