FY20 FACILITIES TASK ORDER B 125542 B539 PHASE 1 AIRLOCK 149A, FACILITY IMPROVEMENTS FOR BUILDING 539 ON THE FREDERICK CAMPUS.

B539的一期翻新区域被设计为动物设施。在授予翻新建设工作的奖项时，LASP指出，该地区将支持两个不同清洁状态的动物项目。在整修期间进行了更改，将两个设施分开。LASP随后要求在R149附近的紧急出口门上安装气闸，因为该计划担心外部空气可能会渗入动物设施并污染他们的工作。为了减少对Ph1整修完成的进度的影响，决定在翻新区域移交后由另一承包商建造气闸。

The Phase 1 Refurbishment area in B539 was designed as an animal facility. At the time of the award of the Refurbishment construction effort, LASP noted that the area would support two animal programs with differing clean statuses. Changes were made during the Refurbishment to separate the two facilities. LASP then requested an airlock at the emergency egress door located near R149, as the Program has concerns that outside air could infiltrate the animal facility and contaminate their work. To reduce schedule impact on the Ph 1 Refurbishment completion, it was decided that the airlock would be constructed by another contractor after the Refurbishment area was turned over.