1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7805 Test Method for Gasoline Extraction in Hose Do Not Use on New Program; No Replacement. 7$*Gl37 $4F 42* 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 General Motors Company All Rights Reserved Septem
2、ber 2011 Originating Department: GM Korea Engineering Standards Page 1 of 5 Version : 5 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. T
3、he purpose of this standard is to determine the presence (or absence) of gasoline extractable waxy hydrocarbons in the tube stocks of hose. (In closed fuel systems, such hydrocarbons can be extracted by fuel or condensing fuel vapors, build up to a precipitation point, and form gel-like particles wh
4、ich restrict flow). 1.2 Applicability. This standard is applied to the fuel hose of 19.05 mm min. diameter. (e.g. Tube : Fuel filler). 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifi
5、cations. None 2.3 Additional References. None 3 Resources 3.1 Equipment and Reagent. 3.1.1 ASTM Fuel C (Volume Ratio, Toluene : Isooctane = 50 : 50). 3.1.2 Methanol, 99% minimum purity. 3.1.3 Gooch Crucible or Fritted Glass Funnel including Glass Fiber Filter (Grade 934AH), and Filtering Device. 3.1
6、.4 Beaker (100 ml). 3.1.5 Heating Unit (Oven). 1 P7 :0 : ., E:48 6&F !7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18 88x 7 , F6* 72T8p) F$ . 1.1 +95 . ., E:48 +958t Gl3 !Fp7 98F# 42* 2e. :E 4#F 7u318 AG3L2 (Waxy Hydrocarbon)8 89 7 .* ?U9IF#$ 8$ . (-4E%L6 8# 7$* 43B72P 7$* D# 8 %P 7$*437 8F %T 3L 8# AG
7、3L2# ?98:9D7 4G8! 18 88* GI2eF7 7$*8 H*8x -FF 3L 8$ ). 1.2 957 -88 . ., E:48t 7$* Gl3 47$ :8 19.05 mm 818 9PE7 $4F 957F$ . (707 38%P E:48x 957F$ . 2.1 17 E:4 / . None 2.2 GM E:4 / . None 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x -C 46 . 3.1.1 ASTM Fuel C (.Fp/x , Toluene : Isooctane = 50 : 50). 3.1.2 +
8、A7 99% 3P$ . 3.1.3 ?T $4# D# 8T* 28T FxBd (934AH &%= )* E FF 8T* $4d , FxBd8? . 3.1.4 /x8 (100 ml). 3.1.5 47(d (7X/D ). GM KOREA ENGINEERING STANDARDS EDS-T-7805 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 2 of 5 Version : 5 3.1.6 Metal Control Rod and End Plugs (se
9、e Figure 1 and Table 1). 3.1.7 Plug Gauge and Caliper. 3.2 Test Piece. 3.2.1 Hose under test shall be 300 mm long, plugged at both ends with metal (aluminum or steel) plugs to retain the fluid. 3.2.2 The inside surface area shall be calculated based on the actual inside diameter of the hose for its
10、total effective length. (Total effective length of hose with end plugs inserted is 275 mm). Note: A metal round control rod conforming to the dimensions shown in Table 1 for hose sizes 19.05 mm and larger shall be inserted into hose as shown in Figure 1. 3.1.6 Q 8TGl8 -C !7 0F7 !+958x 1F$ . (*P) 6!8
11、x *8t 1B8 Gl38 Q 8TGl8# 275 mm8$ .) :0 : Gl3 !8 19.05 mm 818 4G E7 $4F E 17 !A! A d8 =F Gl3 !+957 $4F AG3L2 (8x 1F$ (g/m2). 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8x 9P4F:# 6#$ . &d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 957 7 .* 9
12、IF# 8t ., E:4 1788 =y8 1F8$ . 7 768 9I8 7.1 98,l 76 . F$-1F 68 . 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . English Gasoline Extraction to EDS-T-7805 - 0.5 g/m2 max. Requirements Test Method Designation ,l 42* 2e - EDS-T-7805 - $4 0.5 g/m2. 7 9 4G - 4G F+ GM KO
13、REA ENGINEERING STANDARDS EDS-T-7805 Copyright 2011 General Motors Company All Rights Reserved September 2011 Page 5 of 5 Version : 5 9 Release and Revisions This standard was originated in November 1993. It was first approved by Engineering Standard Committee in November 1993. It was first publishe
14、d in November 1993. 9 9P9I -C P9I 8)Y ., E:48t 1993“x 1187 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1993 “x 11 87 38%L6$ . ., E:48t 1993 “x 11 87 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 5 SEP 2011 Apply new Engineering Standard Template. Limited use with no replacement (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 . F9I957 ($4=E:4 68 ) =* (G)8*4G D4 )
