Number	Name of the Safety hazard
R1	Lack of safety information signs in the laboratory premises.
R2	Absence of a reasonable layout for safety space in the laboratory.
R3	Accumulation of a large number of instruments and items in public spaces.
R4	Laboratory construction and decoration do not comply with fire safety requirements.
R5	Unreasonable layout of water, electricity, and gas pipelines with non-standardized installation.
R6	Unreasonable zoning and layout within the laboratory premises.
R7	Dirty and messy laboratory environment.
R8	Lack of or inadequate implementation of hygiene safety regulations.
R9	Lack of suitable firefighting equipment and infrequent training.
R10	Unclear emergency evacuation routes.
R11	Improper installation of emergency sprinklers and eye-washing devices, hindering normal usage.
R12	Lack of regular maintenance for emergency sprinklers and eye-washing devices.
R13	Absence of a ventilation system meeting design specifications.
R14	Unreasonable fume hood configuration, with non-compliance in operator behavior.
R15	Non-compliance with national standards and industry standards for laboratory electrical safety.
R16	The water supply and drainage system is arranged unreasonably and operates abnormally.
R17	Laboratory personnel not equipped with suitable personal protective equipment.
R18	Lack of two-person presence during hazardous experiments.
R19	Dirty laboratory benches and non-standardized experimental records.
R20	Lack of a dynamic ledger for hazardous chemicals.
R21	Absence of a designated space for exclusive chemical storage, leading to disorganized storage.
R22	Total quantity of hazardous chemicals stored not meeting regulatory requirements.
R23	Chemical labels not prominently displayed, complete, or clear.
R24	Highly toxic chemicals did not implement the requirements of “double acceptance, double storage, double delivery, double locks, double accounts”, and the technical defense measures did not meet the control requirements.
R25	Improper storage of explosive chemicals without double-person double-lock storage.
R26	The storage of easily manufactured toxic chemicals is not standardized and the ledgers are not clear.
R27	Improper procurement of experimental gases, lacking a gas cylinder ledger.
R28	Non-compliance in gas storage and usage.
R29	Oxygen content monitoring and gas alarm devices are not installed in relatively small sealed experimental spaces.
R30	Gas pipelines are incorrectly connected to cylinders, lacking clear identification.
R31	The laboratory has not established a temporary storage area for chemical waste.
R32	Non-standard collection of chemical waste is observed in the laboratory.
R33	Non-compliance with regulations for the transport of chemical waste.
R34	Reagents are prepared without affixing labels.
R35	Damaged glassware, such as graduated cylinders, test tubes, pipettes, etc., is used.
R36	Biological waste is not separated adequately and lacks proper protection and disinfection.
R37	Special equipment is not equipped with corresponding safety protection measures.
R38	Pressure vessels are used without obtaining the “Special Equipment Usage Registration Certificate”.
R39	Both the operators and inspection units for pressure vessels lack the necessary qualifications.
R40	The storage area for pressure vessels is poorly arranged, lacking proper safety warning signs.
R41	Pressure vessels operate without a dedicated management system and operating procedures, and usage registration is not enforced.
R42	Refrigerators used for storing hazardous chemicals do not meet explosion-proof requirements.
R43	Items stored inside the refrigerator lack clear labels, and reagents are not properly sealed.
R44	The usage of refrigerators, ovens, and resistance furnaces does not adhere to specified usage periods and spatial requirements.
R45	Safety operating procedures are not established for ovens, resistance furnaces, and other heating equipment.
R46	Open flame electric stoves or hair dryers are used without implementing adequate safety precautions.