In accordance with accidental dud in massive products,a method to check and evaluate the five reliablity of nonprimary detonators by use of few products(e.g.25 detonators)was develoed.

• 针对大量生产中出现的偶然瞎火，提出了一种用少量产品（例如25发）检测和定量评估无起爆药雷管发火可靠度的方法。