The aim of the paper is the research on the nondestructive detection of Japanese abandoned chemical weapons (JACWs) in the water. Distribution and characteristics of JACWs in the lakes and rivers in China, the task, the equipment and technical requirements of the JACWs nondestructive detection in the water are presented. Practical methods and procedure of JACWs nondestructive detection in the water are given by confirmed with verification test. Two living examples of JACWs nondestructive

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... on in the water are also presented. In the practice of JACWs detection, it is proved that this method and procedure of JACWs detection in the water has advantages such as high efficiency, low risk, good maneuverability and good effectiveness.