XXX XXX XXX Co., Ltd TEST REPORT INSPECTION NUMBER:20191218089-12 TEST DATE:2019-12-18 PRODUCT NAME: REAR DERAILLEUR PRODUCT MODEL: XXX BRAND: XXXX PRODUCTION FACTORY：XXX XXX XXX Co., Ltd PRODUCTION STANDARD：QB/T1881-2008 ITEN 01 02 03 04 05 06 Test items Riser height Open file Riser thread Front fork leg symmetry tolerance Opening Verticality Tolerance Symmetry Tolerance of Brake Arm Column Testing standard Testing requirements Test result 172mm 90mm Meet the requirements 1.0mm 0.3mm 0.5mm Verdict 172mm 0 -0.5 +2.2 -0 Pass Pass Pass Pass Pass Pass 90mm M26Xl-6g ≤1.5mm ≤1.0mm ≤1.0mm After the fatigue strength test, all parts shall be free of cracks or cracks visible to the naked eye, 07 fatigue strength Meet the requirements 59J Pass Pass 08 Absorbed energy QB/T1881-2008 ≥50J When tested according to the specified method of impact strength, each part of the front fork shall be free of cracks visible to the naked eye, and its permanent deformation shall not be more than 45mm. When the front and test frame assembly are tested according to the specified method, each part of the front fork shall be 09 impact strength Meet the requirements Pass 10 Falling strength of assembly Meet the requirements Pass free of cracks visible to the naked eye. 11 12 12 14 Gate arm column position consistency deviation Front fork absorbs energy Permanent Deformation Appearance quality ≤1.5mm ＞40J ≤45mm 0.9mm 48J 38mm Pass Pass Pass Pass No burr, no flying Meet the edge, smooth, no requirements obvious defects. RESULT: as per each standard, the result is QUALIFIED. TESTER：： checker： authorized： Date of issue：2019-12-18 本文来源：https://www.wddqw.com/doc/a2bf861ece1755270722192e453610661ed95a0a.html