I. Ua ntej-Kev Npaj Tshuaj Ntsuam Xyuas
1. Qhia meej cov qauv raws li daim ntawv cog lus, specification thiab AQL (Critical AQL=0.0/0.1, Major AQL=1.5/2.5, Minor AQL=4.0).
2. Npaj cov cuab yeej calibrated: digital caliper, drop test platform, intraoral scanner, transmittance tester (400-700nm), thiab lwm yam.
3. Random sampling los ntawm AQL; xaiv cov qauv los ntawm cov thawv sib txawv thiab sau cov ntsiab lus.
4. Kev soj ntsuam ib puag ncig: huv, 23 ± 2 degree, 50 ± 5% RH, illumination ≥500lux, tsis muaj hnub ci ncaj qha.
II. Ntsuas qhov loj
1. Tshawb xyuas 10 tus qauv (tag nrho yog tias<10) with digital caliper: overall length (±0.5mm deviation), inner diameter (±0.3mm deviation), wall thickness (0.03-0.08mm, max-min deviation ≤0.02mm), and opening elasticity (no tearing, no permanent deformation).
2. Kev Tsim Nyog: Txhua qhov ntev raws li qhov yuav tsum tau ua; tsis muaj distortion los yog tsis sib xws thickness.
3. Kev tuav tsis raug: Re- tshuaj xyuas ob zaug ntawm qhov ntau yog tias tsis tsim nyog; batch tsis tsim nyog yog tias muaj teeb meem tshwm sim.
III. Carton Drop Test
1. Select 3 cartons; drop by ISTA 3A: height (≤10kg:76cm;10-20kg:61cm;>20kg: 46cm), 6 txoj haujlwm (sab saum toj / hauv qab / pem hauv ntej / nraub qaum / sab laug / sab xis).
2. Tom qab- kuaj: Kos lub thawv (tsis muaj kev sib tsoo / tawg), ntim sab hauv (tsis zoo), lub tes tsho (tsis muaj kev puas tsuaj / paug).
3. Kev tuav tsis raug: Re- sim 3 lub thawv ntxiv yog tias tsis tsim nyog; yuav tsum tau rov- ntim / hloov yog tias muaj teeb meem tshwm sim.
IV. Tshawb xyuas
1. Kuaj 5 cov qauv tsim nyog: lub tes tsho ntawm lub tshuab luam ntawv, luam theej duab cov qauv kho hniav 3 zaug rau ib qho qauv; piv nrog tus qauv duab.
2. Kev Tsim Nyog: Smooth scanning, meej dluab (tsis muaj distortion/blurrness), raug yuam kev ≤ ± 0.05mm, tsis muaj lub tes tsho slipping.
3. Kev tuav tsis raug: Re- kuaj cov qauv tsis tsim nyog ob zaug; nthuav sampling yog tias ntau tshaj 1 tsis tsim nyog; batch tsis tsim nyog yog tias tshaj AQL.
V. Fitting Test
1. Kuaj 10 cov qauv tsim nyog: lub tes tsho / tshem tawm smoothly, haum zoo (tsis muaj looseness / wrinkles), tag nrho cov kev pab cuam ntawm scanner qhov tseem ceeb, tsis muaj residue / tearing.
2. Kev tuav tsis raug: Re- tshuaj xyuas ob zaug ntawm qhov ntau yog tias tsis tsim nyog; batch tsis tsim nyog yog tias muaj teeb meem tshwm sim.
VI. Transmittance Check
1. Kuaj 5 cov qauv tsim nyog: transmittance tester (400-700nm), 3 ntsiab lus rau ib tus qauv, qhov nruab nrab ≥90%, taw tes sib txawv ≤5%.
2. Kev tuav tsis raug: Re- kuaj cov qauv tsis tsim nyog ob zaug; nthuav sampling yog tias ntau tshaj 1 tsis tsim nyog; batch tsis tsim nyog yog tias tshaj AQL.
VII. Kev soj ntsuam zaum kawg
1. Cov ntsiab lus soj ntsuam; batch tsim nyog yog tias tag nrho cov khoom ua tau raws li qhov yuav tsum tau ua, txwv tsis pub coj rov ua haujlwm / hloov / tsis lees paub.
2. Sau thiab xa daim ntawv tshuaj ntsuam xyuas.