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CASRI Water Detection Capsules can be used to indicate the presence of free water (suspended water) in jet fuels at handling temperature, which is simple, rapid and sensitive. Fuel Test is authorized and approved by the Civil Aviation Administration of China. A 5 mL sample is sucked through the detector head into the syringe. An initial indication occurs at about 10 ppm when the capsule turns from a pale yellow to a pale green color. The color deepens to a dark green-blue, indicating a water content of 30 ppm.

CASRI水檢測膠囊可用于指示操作溫度下噴氣燃料中游離水（懸浮水）的存在，該溫度簡單，快速且靈敏。 燃油測試是經中國民航總局授權和批準的。 通過檢測頭將5 mL樣品吸入注射器。 當膠囊從淺黃色變成淺綠色時，初始指示出現在約10 ppm處。 顏色加深為深綠色-藍色，表明水含量為30 ppm。