Failure to wear protective clothing when exposed to hazardous chemicals is an extremely dangerous behavior, a serious violation of safety regulations, and may lead to acute poisoning, chemical burns, inhalation injuries, and even fatal consequences. The following are the principles and emergency measures that must be strictly observed： ### 核心 Core principle: Absolutely no unprotected contact 1. **Stop operation immediately** If you are not wearing protective clothing due to an emergency, you must evacuate the contaminated area immediately. Don't be lucky. 2. **Emergency response if contacted** -**Skin contact**: Immediately rinse with plenty of water for more than 15 minutes (calcium gluconate gel is required for special chemicals such as hydrofluoric acid). -**Eye contact**: Open the eyelids and rinse continuously with saline or clear water, and keep your head sideways to avoid the spread of pollution. -**Inhalation**: Quickly transfer to a ventilated place, keep the respiratory tract unobstructed, and seek medical attention immediately if you have difficulty breathing. -**Accidental administration**: It is strictly forbidden to induce vomiting (strong acid/alkali, etc. will aggravate the damage), and immediately bring the chemical label to the hospital. 3. **After-the-fact treatment** -Even if there are no symptoms, you need to seek medical attention for examination (some intoxication has a delayed effect). -Record the name, concentration and contact time of the chemical, and provide MSDS (chemical safety technical manual) to medical institutions. ### 预防措施 Preventive measures (alternative options are only for extreme emergencies) If there is no protective clothing due to force majeure： -**Limit and shorten the exposure time**: Control at the second level, such as evacuating immediately after closing the leaking valve. -**Temporary barrier**： - Wrap the limbs and torso with a thick plastic cloth (gaseous chemicals still need to be avoided). -Wear a gas mask (at least cover your mouth and nose with a wet towel). -**Decontamination afterwards**: All contact clothing must be sealed and discarded, and the body should be thoroughly cleaned. ###️Important Warning -No untrained personnel shall deal with hazardous chemicals (in violation of the "Occupational Disease Prevention and Control Law" and the "Production Safety Law"). -The laboratory/factory must be equipped with emergency showers, eye showers and first aid kits. -Long-term consequences include cancer, organ failure, etc. (such as leukemia caused by benzene exposure). Please give priority at any time： 终止 Terminate the experiment/assignment ✅ Call a professional emergency response team 间接 Use indirect operations such as robotic arms/long-handled tools, etc. There is no substitute for life safety, don't take risks!