Pass box maintenance cycle (General Industry Standard for Cleanrooms)
\nDivided into daily, weekly, monthly, quarterly, and annual categories, it distinguishes between ordinary ultraviolet pass boxes and laminar flow air shower pass boxes, adapting to the general specifications of pharmaceutical enterprises and electronic cleanrooms.
\n1. Daily maintenance (per shift \/ before and after shift each day)
\nClean the inner walls, glass, countertop, and sealing strip surfaces of the box with 75% alcohol for disinfection;
\nCheck if the double doors are closed tightly and if there are any gaps;
\nTest if the interlock indicator light, lighting lamp, and ultraviolet lamp can be turned on normally;
\nClear the box of debris, water accumulation, and stains.
\nApplicable to all types of pass boxes, it must be done after each shift operation.
\n2. Weekly maintenance
\nFully disassemble the sealing strip, clean the accumulated dust in the gaps, and dry and reset;
\nWipe the door frame, door lock, and electromagnetic lock contact surfaces of dust;
\nCheck the dust on the surface of the ultraviolet lamp tube and wipe it with a dust-free cloth;
\nLaminar flow type: Clean the surface of the primary filter screen.
\n3. Monthly maintenance (monthly inspection and maintenance)
\nClean and lubricate the mechanical\/electronic interlock mechanism, test opening and closing 10 times or more to confirm no jamming;
\nCheck the tightening of door hinges, pull handles, and screws, and tighten promptly if loose;
\nCheck if the sealing glue around the box is cracked, blackened, or detached;
\nCheck the cumulative usage time of the ultraviolet lamp;
\nLaminar flow pass box: Replace the primary filter screen if dirty.
\n4. Quarterly maintenance (3 months)
\nComprehensively inspect the circuit wiring, grounding, and switch lines for aging and cracking;
\nTest the ultraviolet lamp irradiation intensity (standard \u2265 50 \u03bcW\/cm\u00b2), replace the lamp tube in advance if insufficient intensity;
\nCheck if the box has deformed, rusted weld seams (for stainless steel models);
\nLaminar flow type: Test the fan operation noise and wind speed, and repair if abnormal;
\nRecheck the air tightness of the wall, reseal the door gap if there is leakage.
\n5. Annual major maintenance (12 months)
\nRemove and clean the entire unit, check for aging, hardening, or deformation of the sealing strip, and replace all parts;
\nUltraviolet lamp tube: Replace immediately if cumulative usage reaches 800 hours;
\nLaminar flow pass box: Replace the primary filter screen, test for leaks;
\nReplace aging and damaged electromagnetic locks and control switches;
\nRemove and reapply the sealing glue on the box and wall, reseal for air tightness;
\nRecheck the air tightness of the entire machine, conduct full function interlock acceptance, and retain maintenance records.
\nKey consumable replacement cycle (rigid standard)
\nUltraviolet sterilization lamp tube: Replace after 800 hours of cumulative use or after 1 year, regardless of the duration;
\nDoor sealing strip: Replace once a year; if hardened, cracked, or leaking, replace immediately;
\nPrimary filter screen of laminar flow pass box: Replace every 1 month; efficient filter: Replace every 1 year, replace immediately if damaged and leaking powder;
\nElectromagnetic lock and control buttons: No fixed cycle, replace immediately if faulty;
\nSealing glue of the box: Reapply and repair every 1 year.
\nDifferent cleanroom adjustments
\nAseptic pharmaceutical \/ biological clean area: Cycle is shortened by 20%, measure the intensity of the ultraviolet lamp every 6 months, inspect the sealing strip once every half a year;
\nElectronic dust-free workshop: Execute according to the standard cycle;
\nHigh dust production workshop: Reduce the cleaning and filter screen replacement cycle by half.<\/p>","protected":false},"excerpt":{"rendered":"
Pass box maintenance cycle (General Industry Standard for Cleanrooms) Divided into daily, weekly, monthly, quarterly, and annual categories, it distinguishes between ordinary ultraviolet pass boxes and laminar flow air shower pass boxes, adapting to the general specifications of pharmaceutical enterprises and electronic cleanrooms. 1. Daily maintenance (per shift \/ before and after shift each day) […]<\/p>","protected":false},"author":12,"featured_media":4884,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5528","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/posts\/5528","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/comments?post=5528"}],"version-history":[{"count":1,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/posts\/5528\/revisions"}],"predecessor-version":[{"id":5529,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/posts\/5528\/revisions\/5529"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/media\/4884"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/media?parent=5528"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/categories?post=5528"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/tags?post=5528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}