GMW 14334 耐化学液体性.pdf

WORLDWIDE
ENGINEERING
Test Method
GMW14334
Materials
STANDARDS
Chemical Resistance to Fluids
4 Test Material
1 Scope
4.1 Test Medium. The test fluid specified in the
lote: Nothing in this standard supersedes
material specification shall be specified on the
applicable laws and regulations
drawing or in the math data per the designated
Note: In the event of conflict between the English
code in Table 1. Examples for regional commercia
and domestic language, the English language shall
products are given in Appendix A. If more then one
take precedence
fluid is given under a coding, the test shall be
The object of this test procedure is to determine
repeated for each fluid
the effects of fluids on automotive trim materials
4. 2 Test Piece. If possible complete components
and components. Examples of fluids are cleaning
shall be tested. Where size, configuration etc
nts, perspiration, etc. Such components will
restricts testing, sections of convenient size, cut
normally have organic coated surfaces, or be
from the component, shall be used. A minimum of
integrally colored plastic or self adhesive films, but
three(3 )test pieces shall be tested
other types of materials or components are not
4. 2. 1 Organic Coatings. It is also permissible
excluded
use specially prepared test panels. The size shall
(250±5)X(20±2)X(0.8to2.5)
2 References
anels shall be made of production intent
Note: Only the latest approved standards are
ates. Coating shall be applie
applicable unless otherwise specified
intent processes and in the thicknesses specified
in the material specification
2.1 External Standards/Specifications
4.2.2 Self Adhesive Films, The film shall be
None
applied to the production intent surface. The
2.2 GM Standardsspecifications.
organic coating or substrate shall be in accordance
9981285
B0401990
to the relevant material specification
9982223
L0000555
5 Test Method
9982224
L0000556
9985129
GMW322
5.1 Summary of Test Method. If not otherwise
specified the respective fluids are applicable for the
2.3 Additional References
materials specified
able 2 Conditioned test
CAS-No.64-19-7
pieces shall be immersed in the test fluid for the
CAS-No.7647-14-5
time specified in Table 2. The test pieces shall be
removed, rinsed free of reagent, dried with clean
CAS-No.7732-18-5
cloth using slight pressure, inspected and
CAS-No.10039-32-4
evaluated
CAS-No.10361-29-2
5.2 Test Sample Preparation. Test pieces shall
be tested immediately after conditioning t
3 Test Equipment
GMW3221 Code A for periods as defined below
3.1 Apparatus for conditioning to GMW3221
5.2, 1 Oven Dried Organic Coatings. Condition for
3.2 Containers of sufficient capacity to hold test
24 h minimum after coating and baking
pieces and test medium
5.2.2 Air Dried Organic Coatings. Condition for
3.3 Clean cotton cloth
72 h minimum after coating and drying
5.2.3 Self Adhesive Films, Condition for 24 h
minimum after adhering
O Copyright 2007 General Motors Corporation All Rights Reserved
May 2007
Originating Department: GME Specification Center
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