1、 WORLDWIDE ENGINEERING STANDARDS Test Procedure GMW14361 Ageing Resistance/Brake Fluid Compatibility of Brake Hoses Copyright 2012 General Motors Company All Rights Reserved September 2012 Originating Department: North American Engineering Standards Page 1 of 3 1 Scope Note: Nothing in this standard
2、 supercedes applicable laws and regulations. Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 1.1 Purpose. This test procedure shall be used to simulate thermal ageing of brake hoses in conjunction with brake fluid. The parts shall
3、 then be subjected to further tests to check their good working order. 1.2 Foreword. Not applicable. 1.3 Applicability. Not applicable. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specif
4、ications. GMW3056 GMW14362 3 Resources 3.1 Facilities. Not applicable. 3.2 Equipment. 3.2.1 Test Equipment. Container to hold brake fluid, contents approximately 350 cm3 (See Figure 1, similar to GMW14362). 3.3 Test Vehicle/Test Piece. 3.3.1 Test Material. The number of brake hoses to be aged depend
5、s on the number of pre-aged brake hoses required for other test procedures. 3.4 Test Time. Not applicable. 3.5 Test Required Information. Not applicable. 3.6 Personnel/Skills. Not applicable. 4 Procedure 4.1 Preparation. Not applicable. 4.2 Conditions. 4.2.1 Environmental Conditions. Not applicable.
6、 4.2.2 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. 4.3 Instructions. 4.3.1 Test Procedure. Copyright General Motors Company Provided by IHS under license w
7、ith General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14361 Copyright 2012 General Motors Company All Rights Reserved September 2012 Page 2 of 3 4.3.1.1 The brake hoses shall be fastened, suspended verticall
8、y, with their female fitting to a container (See Figure 1). The other end (banjo fitting or female fitting) of the brake hoses shall be sealed with a suitable screw plug. Then the container shall be filled with brake fluid (use brake fluid to GMW3056 unless otherwise specified). The screw plug of ea
9、ch brake hose shall be opened until brake fluid emerges to ensure that the hose is filled with brake fluid without air bubbles. The ends shall then be securely screwed. After all air is removed from the brake hoses, the container should still be filled approximately 50% with brake fluid, and be secu
10、rely sealed, too. Figure 1: Container to Hold Brake Fluid 4.3.1.2 Storage Period. The brake hose/reservoir assembly shall be stored for 336 h (14 days) at +100 C 2 C. The assembly shall then be allowed to cool and the brake fluid shall be removed. 5 Data 5.1 Calculations. Not applicable. 5.2 Interpr
11、etation of Results. Not applicable. 5.3 Test Documentation. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW14361 Copyright 2012 General
12、Motors Company All Rights Reserved September 2012 Page 3 of 3 5.3.1 Report. With reference to this test procedure, the results of the measurements shall be presented in a test report. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to
13、 address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviatio
14、ns, and Symbols. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Test to GMW14361 9 Release and Revisions This standard was originated in September 2005. It was first approved by the Global Elastomers Team in December 2006. It was fir
15、st published in March 2007. Issue Publication Date Description (Organization) 1 MAR 2007 Initial publication. 2 SEP 2012 5 year Refresh. (Global Elastomers Subsystem Leadership Team) Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
