测量范围:10至660 ppm 比例范围:10至200 ppm 吮吸和饮酒数:2次(10至200 ppm,系数1),1时间(200至660 ppm,系数3.3),系数3.3) suction) Discoloration: Yellow → Light blue Temperature and humidity correction: Temperature Expiration date: 2 years from production Other gases that can be measured: Methyl isothiocyanate (39.8 to 1766 ppm) Target gas: Methyl tert-butyl ether Measurement range (ppm): 10 to 660 ppm