I. First, clarify: Daily inspection = two parts
\nFunctional daily check (per shift \/ daily)
\nDOP\/PAO high-efficiency filter leak detection (performed regularly, not measured every day during daily inspection)
\nI will provide you with the most standard, detailed, and writeable SOP process.
\nII. Daily functional check for DOP\/PAO laminar transfer window (per shift must be done)
\n1. Appearance and cleanliness
\nCheck the inner and outer surfaces of the transfer window, glass, door frame for no stains, no damage, no rust
\nSeal strip flat, no deformation, no detachment
\nNo debris, no water accumulation, no odor inside
\n2. Interlock function
\nWhen one side door is opened \u2192 the other side must be unable to open
\nAfter closing, the interlock automatically resets, with normal sound and light indication
\n3. Fan \/ laminar operation
\nAfter starting, the fan operates smoothly, without abnormal noise, without vibration
\nThe airflow at the outlet is uniform, without obvious turbulence
\nThe operation indicator light is normal
\n4. Ultraviolet germicidal lamp
\nThe lamp lights up normally, without flickering, without blackening
\nThe timing is accurate, the cumulative usage time has not exceeded the lifespan (generally 9000 hours)
\n5. Pressure difference (if any)
\nThe pressure on the clean side is higher than that on the non-clean side
\nThe pressure difference meter shows normal, without zero drift
\n6. Self-cleaning function
\nWhen starting the self-cleaning, the countdown is normal
\nAfter the end, it stops automatically \/ gives a prompt
\nAll of the above are normal, then the daily function is qualified.
\nIII. Detailed operation steps for DOP\/PAO leak detection (formal inspection)
\n0. Preparation work
\nInstrument: Aerosol photometer, aerosol generator, sampling gun
\nThe transfer window runs for \u2265 10 minutes in advance
\nThe clean area has no production, no dust, no personnel movement
\nThe instrument is preheated, calibrated, and zeroed
\nStep 1: Upstream dust generation (establish the challenge concentration)
\nConnect the aerosol generator to the upstream air duct \/ static pressure box of the transfer window
\nTurn on the generator, stabilize the dust generation
\nThe photometer samples the upstream concentration, controlled within:
\n10 – 30 \u03bcg\/L (stable for 3 – 5 minutes)
\nThe photometer is set to:
\nMode: % Leakage Rate (Penetration Rate)
\nAlarm value: \u2264 0.01%
\nStep 2: Downstream leak detection scan (core step)
\nThe sampling gun scans the outlet face of the high-efficiency filter
\nDistance from the filter surface: 1 – 2 cm
\nMoving speed: \u2264 5 cm\/s
\nScan method:
\nS-shaped reciprocating scan
\nRows and rows overlap \u2265 50%
\nFull coverage: the entire filter surface + four sides of the frame + sealant strip + installation joint
\nMust be focused on scanning the following positions:
\nFilter corners
\nFrame sealing
\nFilter and frame joint
\nPressing device, screw hole area
\nTransfer window inner wall joint
\nStep 3: Leak determination
\nAny point > 0.01% \u2192 Determine leakage
\nContinuous alarm \u2192 Mark the position, stop scanning
\nStep 4: Leak handling
\nMinor leakage:
\nRepress the frame
\nReplace the sealant strip
\nRepair the sealant
\nFilter material damage, pinholes, unable to repair:
\nMust replace the high-efficiency filter
\nAfter handling \u2192 Repeatedly scan for leak detection until qualified
\nStep 5: Inspection conclusion
\nTurn off the dust generator, continue to run the fan for 5 – 10 minutes to remove air solvents
\nClean the inside of the transfer window
\nTurn off the ultraviolet, fan, and power supply
\nFill in the DOP leak detection record
\nIV. DOP leak detection qualification standards (GMP general)
\nNo leakage on the filter surface of the high-efficiency filter
\nNo leakage at the frame and installation area
\nLeakage rate \u2264 0.01% at all scanning points
\nAll fan, laminar, interlock, pressure difference, self-cleaning are normal<\/p>","protected":false},"excerpt":{"rendered":"
I. First, clarify: Daily inspection = two parts Functional daily check (per shift \/ daily) DOP\/PAO high-efficiency filter leak detection (performed regularly, not measured every day during daily inspection) I will provide you with the most standard, detailed, and writeable SOP process. II. Daily functional check for DOP\/PAO laminar transfer window (per shift must be […]<\/p>","protected":false},"author":3,"featured_media":4867,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5135","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\/5135","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/comments?post=5135"}],"version-history":[{"count":1,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/posts\/5135\/revisions"}],"predecessor-version":[{"id":5136,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/posts\/5135\/revisions\/5136"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/media\/4867"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/media?parent=5135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/categories?post=5135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/ar\/wp-json\/wp\/v2\/tags?post=5135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}