I would agree with Charles about potential cross-contamination and to ensure clean parts shuttled back and forth that means that shed has some type of a cleaning station? Also the pathway (as in where their shoes touch) between the shed and building should be solid - not dirt, as they could track in stuff.
We have a couple of clients that have 45-55 foot trailers in use outside as maitenance facilities - they treat them from a safety protocol standpoint the same as if they were inside the facility, all are sited on concrete pads and raised, all have been added to PCO rounds and have traps outside, all have parts and hand-washing stations (not cominguled), first aid kits, heat/AC, adq lighting, etc.
As to documentation to ensure the parts are clean, you would use the same kind of document that you use if the facility was inside the building - an SOP for cleaning parts, verifying that parts have been cleaned and responsible party sign off.
All the Best,
All Rights Reserved,
Without Prejudice,
Glenn Oster.
Glenn Oster Consulting, LLC
-SQF System Development, Implementation & Certification /Internal Auditor Training /eConsultant Retainer
Oak Bluffs, Martha's Vineyard Island, Massachusetts
Republic of these United States (restored)
www.GlennOster.com | 774.563.6161 | glenn@glennoster.com