独立通风笼具( IVC)技术指标检测及参数稳定性评价
作者:
作者单位:

广东省实验动物监测所,广东省实验动物重点实验室,广州 510663

作者简介:

通讯作者:

中图分类号:

R-33

基金项目:


Detection and stability evaluation of technical parameters of individually ventilated cages
Author:
Affiliation:

Guangdong Laboratory Animals Monitoring Institute, Guangdong Provincial Key Laboratory of Laboratory Animals, Guangzhou 510663, China

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    目的 探讨 IVC 技术指标的检测方法并评价 IVC 参数的稳定性。 方法 依据 GB 14925-2010 与 DB32 / T 972-2006 标准规定的方法,对摆放在普通环境和屏障环境的 IVC 进行检测,分析 IVC 微环境对外环境技术指标的依赖程度,比较不同换气次数测定方法的差异,并计算各指标的相对偏差和笼盒泄漏率。 结果 IVC 微 环境的温度、湿度与外环境参数正相关;依据 GB14925-2010 附录方法测定的笼盒内换气次数明显高于流量计法的测定值(t-test,P = 0. 0001);IVC 笼架对角线上 5 个笼盒的换气次数、噪声、风速的相对偏差较小,但静压差的相对 偏差较大;IVC 笼盒泄漏率检测结果高达 75%。 结论 IVC 的使用受制于外环境条件,笼架不同位置的笼盒内静压差的稳定性差,与较高的笼盒泄漏率相关,研究结果可为 IVC 国家或行业准制(修)订提供参考

    Abstract:

    Objective To study method for testing the technical parameters of individually ventilated cages (IVCs) and evaluating the stability of IVC parameters. Methods In accordance with the method of GB 14925-2010 and DB32 / T 972 - 2006, IVCs that were placed in the conventional and barrier environments were tested respectively. Correlations between the micro- and macro-environments were analyzed. Two method for testing air changes per hour (ACH) were compared. The relative deviation ( based on 5 diagonal cages) of IVC and cage leakage rates were also calculated. Results The temperature and humidity of the micro-environment were positively correlated with those of the macro-environment. The ACH was significantly higher when tested using the method of GB 14925 - 2010 compared with using the flowmeter method . The relative deviations of ACH, noise, and airflow velocity were smaller than that of the hydrostatic pressure difference. Cage leakage rates were high, at 75%. Conclusions Use of IVCs was limited to the macro-environment. The hydrostatic pressure difference showed a low stability, which was correlated with cage leakage rates. The result of this study provide a reference for formulating national or trade standards.

    参考文献
    相似文献
    引证文献
引用本文

闵凡贵,王 静,潘金春,黄树武,龚宝勇,张 钰.独立通风笼具( IVC)技术指标检测及参数稳定性评价[J].中国比较医学杂志,2020,30(4):106~109.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-08-01
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2020-05-14
  • 出版日期:
自2024年1期开始,杂志参考文献改为中英文对照,具体格式要求可置下载中心查看!
关闭