How high is the temperature? You can stop working when the outdoor temperature exceeds 40℃

State Administration of Work Safety, Ministry of Health, Ministry of Human Resources and Social Security and All-China Federation of Trade Unions No.89 [20 12] Article 8 During high-temperature weather, the employing unit shall, according to the following provisions, reasonably arrange working hours, rotate work, appropriately increase the rest time of workers in high-temperature working environment and reduce labor intensity according to production characteristics and specific conditions. Reduce outdoor operation in high temperature period: (1) The employer shall adjust the working hours according to the forecast temperature of the day issued by the meteorological office of the competent meteorological department at or above the municipal level, unless it is necessary to deal with it urgently because of personal and property safety and public interests: 1. If the daily maximum temperature reaches 40℃ or above, outdoor operation on that day shall be stopped; 2. When the daily maximum temperature reaches above 37℃ and below 40℃, the employer shall not arrange outdoor outdoor operations for more than 6 hours, and the continuous operation time shall not exceed the national regulations, and outdoor outdoor operations shall not be arranged within 3 hours of the maximum temperature period; 3. When the daily maximum temperature reaches 35℃ or above and 37℃ or below, the employer shall rest in shifts, shorten the continuous working hours of workers, and shall not arrange outdoor workers to work overtime. (2) Before the arrival of high-temperature weather, the employing unit shall carry out health examination for the workers who work in high-temperature weather, and adjust their posts for the workers who suffer from heart, lung, cerebrovascular diseases, tuberculosis, central nervous system diseases and other physical conditions that are not suitable for the high-temperature working environment. The expenses for occupational health examination shall be borne by the employer. (3) The employing unit shall not arrange pregnant female workers and underage workers to engage in outdoor open-air operations in hot weather above 35℃ or work in workplaces above 33℃.