Measurement range: 1 to 50 ppm Airflow speed/flow rate: 50 ml/min Measurement time required: 10 minutes Comment: 1 Discoloration: Yellow → Reddish brown Temperature and humidity correction: Temperature Expiration date: Up to 1 year, stored in the refrigerator (below 10℃) Subject gas: ethylene氧化物 受试者气体:氧化乙烷(连续吸力类型) 执行期(年):1(冰箱中的存储) 测量范围(PPM):1至50