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关于UL的WTDP，不同的UL标准，或同一标准中不同类别的产品都需要先进行实验室审核；一般WTDP实验室审核需要在做WTDP之前完成，特殊情况可以和WTDP同时进行。
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2 ~4 w0 m# r. v0 B' g- I. \某个UL标准通过WTDP审核之后，并不是每年进行审核，而是在每次WTDP的时候都需要对实验室的如下内容进行的审核：
. Y9 q. C( ]) y1. Environment:
, W3 I# u* @ M- G( M* oAccommodations and Environmental conditions, including proper power source meet the requirements of the test standard or UL default criteria (ISO/IEC 17025 Clause 5.3.1, 5.3.2. 5.3.3)* H Y" t! Y( J9 D5 H, {" K" I
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2. Equipment:
- S/ o+ a8 ]4 t* r0 T5 j) ZTesting is being conducted within the test equipment calibration dates. (See Test Instrument Information Page and ISO/IEC 17025 5.6.2.2)
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3. Critical Consumables:
0 G4 k$ f. H5 {0 H, B, pCritical consumables are compliant with test standard requirements. (ISO/IEC 17025 Clause 4.6)5 X3 @; B3 D2 U2 V0 U9 Q' @
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4. Sample Identification:
$ Q5 l# \* C3 ~2 g$ O' s! c1 k S0 tIdentification of items to be tested has been made (e.g. model no., Serial No., etc.) (See Test Sample Identification page and ISO/IEC 17025 Clause 5.8.2)
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最后得出如下结论：
% Y; _# c% s/ i) k9 X: KSummary:
+ S; ?7 X) p6 x7 OThe test facility was or was not deemed to have the environment and capabilities necessary to perform the tests included in this data package. |
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