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为验证GJB2－82常规兵器发射或爆炸时压力被对人体作用的安全标准的安全性或适用范围，将六组豚鼠分别暴露于不同发数和声强的冲锋枪射击条件下，但经受的噪声水平均在安全标准值附近（－2～1dB）。以豚鼠皮层听区诱发电位阈和光镜下耳蜗毛细胞损伤率为指标，观察其损伤程度与规律。结果表明，暴露后48h，各组动物平均听阈阈移3～22dB，总平均听阈阈移16．9dB。阈移≥15dB耳数发生率各组为10％～100％，总体发生率为54．6％。耳蜗毛细胞损伤率各组为3．56％～29．27％，总体损伤率为14．63％。以上结果表明，除个别组外，各组动物听觉有明显损伤。故可认为GJB2－82标准不够安全或不适合冲锋枪类轻武器的射击条件。
In order to verify the safety or application of the safety standard that GJB2-82 conventional firearms launch or explode on the human body, six groups of guinea pigs were respectively exposed to submachine gun firing conditions with different numbers of hair and sound intensity, but the noise level All around the safety standard value (-2 ~ 1dB). The guinea pig cortical evoked potential threshold and cochlear hair cell damage rate under light microscope were used as indexes to observe the degree and regularity of damage. The results showed that at 48h after exposure, the average threshold of each group of animals shifted 3 ~ 22dB, the total average threshold shift 16.9dB. Threshold shift ≥ 15dB The incidence of ear number of each group was 10% to 100%, the overall incidence was 54.6%. Cochlear hair cell damage rate in each group was 3.56% ~ 29.27%, the overall injury rate was 14.63%. The above results show that, except for individual groups, each group of animals have obvious hearing impairment. It can be considered GJB2-82 standard is not safe enough or not suitable for submarine gun firearms shooting conditions.