garment inspection and stages - avs
TRANSCRIPT
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armen
nspec on
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Stage
of
Garment
Inspection
A LRandomSam lin Ins ection
AQL1.5severeinspection
.
SampleSizeCodeLetter
,
DoubleSamplingPlan,normalinspection
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PreproductionCheck ina c ec ont erawmateria use ,sty e,cut
InitialProductionCheck ,
beforebulkproduction
DuringProduction
Check
FinalRandomInspectionCheckingthetotalproductionqualitybyselectingthe
.
beapplied
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TheAQLinspectiontakesthesamplesfromagoods,inspect
decideto
accept
or
reject
them.
ThestandardisbasedonMilitar Standard105D MILSTD
105D)
Itprovides
with
the
sampling
plans,
the
number
of
samples
to
beinspectedandtheacceptablequalitylevel(AQL)
AQL1.5isappliedtoverysevereinspectiononhighclass
expens ve
em.
AQL2.5isappliedwhentextilesofnormal/goodqualityare
.
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single,double
and
multiple
ac samp ngp ancan eper orme n ree
levelnorma ,t g tene an re uce , epen ngonqua ty
ofproducts
ngarment
n ustry,
s ng e
an
ou e
norma
samplingplansareapplied
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sizesto
different
code
letter.
,
inspection
and
three
for
special
inspection Forgarment nspect on,Genera Inspect on eve II
wouldbeused.
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SingleSamplingPlanfornormal
inspection
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DoubleSamplingPlans
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ExampleSingleSamplingPlanNormalInspection
. ,
findout
the
following
:
The
total
number
of
samples
need
to
inspectT eaccepta enum ero t esamp es
Therejectionnumberofthesamples
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Answer
SingleSampling
Plan
,
size
of
600
and
inspection
level
II
is
J
,
correspondstosamplesizesof80.
So,80samp esarenee e to nspectouto 600
AtAQL2.5%,ifdefectivegarmentsarelessthanor
equalto
5,
whole
lots
will
be
accepted,
if
it
is
foundtobe6ormore,wholelotswillberejected.
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, . ,
findout
theacceptable
number
and
rejection
number
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ExampleII
DoubleSampling
Plan
,
findout
from
double
sampling
plan
on
the
Thetotalsamplesizesneedtoinspect
Whatisthesecondacceptablenumber
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Answer
DoubleSampling
Plan
,
letterK
,
sizeofletterKis80.
F rst nspect on,atAQL4 ,t eaccepta e
numberis5,rejectionnumberis9
Ifany
number
between
5to
9,
second
inspection
isneeded
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Answer
Doublesampling
Plan
II
,
AtAQL
4%,
the
cumulated
acceptable
number
is
.
ConclusionIfthenumberofdefectivegarmentsfoundinthefirst
sample
is
6,
and
in
second
sample
is
5,
making
a
total
,
w
,
waccepted.
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Trythisone
DoubleSampling
Plan
,
produced.
AtAQL
2.5%,
find
out
the
following
at
Thetotalsamplesizesneedtoinspect
T eaccepta enum erat rst nspect on
Theacceptablenumberatsecondinspection
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