Index: ssts-web/src/main/webapp/disinfectsystem/basedatamanager/container/containerForm.js
===================================================================
diff -u -r13300 -r13479
--- ssts-web/src/main/webapp/disinfectsystem/basedatamanager/container/containerForm.js	(.../containerForm.js)	(revision 13300)
+++ ssts-web/src/main/webapp/disinfectsystem/basedatamanager/container/containerForm.js	(.../containerForm.js)	(revision 13479)
@@ -142,7 +142,7 @@
 					valueField : 'value',
 					displayField : 'value',
 					store : washClassifyStore,
-					allowBlank: false,
+					allowBlank: true,
 					editable:false,
 					forceSelection : true,
 					triggerAction : 'all',
Index: ssts-web/src/main/webapp/disinfectsystem/basedatamanager/materialDefinition/materialDefinitionForm.js
===================================================================
diff -u -r13300 -r13479
--- ssts-web/src/main/webapp/disinfectsystem/basedatamanager/materialDefinition/materialDefinitionForm.js	(.../materialDefinitionForm.js)	(revision 13300)
+++ ssts-web/src/main/webapp/disinfectsystem/basedatamanager/materialDefinition/materialDefinitionForm.js	(.../materialDefinitionForm.js)	(revision 13479)
@@ -373,7 +373,7 @@
 									valueField : 'value',
 									displayField : 'value',
 									store : washClassifyStore,
-									allowBlank: false,
+									allowBlank: true,
 									editable:false,
 									forceSelection : true,
 									triggerAction : 'all',