1、 ENGINEERING STANDARDS Test Procedure LIMITED USE EDS-T-7307 Test Method for Determining the Bitumen in Paper, Cardboards and Other Material Do Not Use on New Program; No Replacement. 98 , *.:7t $* 8:&7 F8T%P 7!=8x ?U9IF# 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyri
2、ght 2011 General Motors Company All Rights Reserved July 2011 Originating Department: GM Korea Engineering Standards Page 1 of 4 Version : 3 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
3、Korean language shall take precedence. 1.1 Purpose. This standard shall be used for the determination of pure bitumen which is soluble in the extraction medium using the ratio of the loss in weight and the original weight of the test piece due to extraction. 1.2 Applicability. This standard shall be
4、 applied to paper, cardboard and similar materials containing bitumen as primary additive. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications. EDS-T-7507 2.3 Additional Reference
5、s. None 3 Resources 3.1 Equipment. 3.1.1 Soxhlet Extractor. 3.1.2 Electric Hotplate or Electrically Heated Water Bath. 3.1.3 Balance accurate to 1 mg. 3.1.4 Suitable Cutting Devices or Shears for preparation of test pieces. 3.1.5 Humid Chamber for conditioning to EDS-T-7507. 3.1.6 Heating Oven with
6、natural ventilation, capable of maintaining the required temperature within 2.5 K. 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:48t 7 8F 4G 98 yG ,h D(/x)2P 7+7 7F%L# 3P3LF 7!= F(8x ?U9I F#$ , +958 8$ . 1.2 957 -88 . ., E:48t 98 , *.:7t 8
7、T1 8:7 :E7F =49P)4 7!=8x F8TF 8:7 $4F7 957F$ . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . None 2.2 GM E:4 / . EDS-T-7507 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x . 3.1.1 8? . 3.1.2 987(d Gm8t 98F9 . 3.1.3 1 mg: ?U9I 4#F 947 . 3.1.44G D 9 7+ . .47 Gm8t % &%F &HA)*+A . 3.3
8、 4G D . 3.3.1 4G D . 9PE8p).Bd 2 mm 8F8 l8) 8 8(2P 2 3 g ?F$ . +8 98 , *.:7t 8T1 8:7 D9 (D8C , E0 , 9D89P &% )%P 77# D9 8:8x 9PF6 F$ . 3.3.2 4G D 3L . 3.3.2.1 4G 387 : 3P 81 . 3.3.2.2 3L8 17 : 1P 81 . 4 4G 97 7 0:* EDS-T-75077 &d( 98=*F$ . 4.2.2 7 7 0:8 ,h* 0.1 mg : ?U9IF$ . (m1). 4.2.3 8 97 7 0:7 “
9、W 0.1 mg: ,h* ?U9IF$ . (m2). 4.2.4 3PG%L# 768 8U6|8p) .0 & ,h18 %T &: .*%P 4G D8x 8?72P &HA)*+A8p) F+ 4 7+4 07(%L: 6$) :08F$ . 4.2.5 G 4G D8x E FF 7 7 0:* 70 E 2.5K 7X/D72P (80.5)48 94A$ . 4.2.6 4G D8x E FF 7 7 0:* 4.2.197 7 0:* 0.1 mg: ,h* ?U9IF$ . (m3). 5 4G $8Bd 5.1 0 . 7!= F(8t %) 6x(7t M8 1F$ .
10、 7!= F( (%) = (m I F m V )mI 100 GM KOREA ENGINEERING STANDARDS EDS-T-7307 Copyright 2011 General Motors Company All Rights Reserved July 2011 Page 3 of 4 Version : 3 Where, mR = mass of the extracted and conditioned test piece in g (m3 - m1). mE = mass of the conditioned test piece in g (m2 - m1).
11、m1 = mass of conditioned thimble. m2 = mass of conditioned thimble plus test piece. m3 = mass of conditioned thimble plus test piece after extraction. 5.2 Expression of Results. With reference to this test method, the bitumen content shall be indicated as the arithmetical average or individual value
12、 in % rounded to the nearest 0.1 %. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and
13、health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: 7 d2P , mR = G 4G
14、 D8 ,h g (m3 -m1). mg = 98 4G D8 ,h g (m2 - m1). m1 = 98 7 7 0:8 ,h . m2 = 98 4G D0 7 7 0:8 ,h . m3 = 98 4G D0 7 7 0:8 ,h . 5.2 0 E4 . 8 4G -0 4)F7 ?U9I%P 7!= F(8t %) 0.1 %: PP8 F Gm8t 13T D8p) E4F$ . 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P
15、8 F8x 9P4F:# 6#$ . &d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 957 7 .* 9IF# 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 Bitumen Content to EDS-T-7307 - 20 to 30 weight % Requirements Test
16、method Designation ,l 7!= F( EDS-T-7307 - 20 30 :E( % 7 1F 4G - 4G F+ GM KOREA ENGINEERING STANDARDS EDS-T-7307 Copyright 2011 General Motors Company All Rights Reserved July 2011 Page 4 of 4 Version : 3 9 Release and Revisions This standard was originated in January 1994. It was first approved by E
17、ngineering Standard Committee in January 1994. It was first published in January 1994. 9 9P9I -C P9I 8)Y ., E:48t 1994 “x 1 87 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1994“x 187 38%L6$ . ., E:48t 1994“x 187 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 3 JUL 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 )
