1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-7718 Calculation Method of Viscosity Index of Petroleum Products This standard may be applied only for current projects. It is Superceded for all future projects and replaced by ISO2909. 88T -C 2Q8T9PE8 9D$:3L 1 - Note: 8 E:48t G8 =97 FF7 957%L+
2、 , FG P-P Program .Bd# ISO2909 ) $4=F7 957F$ . Copyright 2011 General Motors Company All Rights Reserved August 2011 Originating Department: GM Korea Engineering Standards Page 1 of 4 Version : 4 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of
3、 conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. This standard specifies the test method for calculating viscosity index of petroleum and its products. 1.2 Applicability. This standard applies to the methods for calculating the viscosity inde
4、x of petroleum, lubricating oils, and other liquid. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASTM D 2270 DIN 51562 KS M 2014 2.2 GM Standards/Specifications. EDS-T-7401 2.3 Additional References. None 3 Re
5、sources 4 Procedures 4.1 Conditions. 4.1.1 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. 1 P7 :0 : ., E:48 6&F !7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18
6、88x 7 , F6* 72T8p) F$ . 1.1 +95 . ., E:48t 88T -C 2Q8T9PE8 8T% 9D8x ?U9IFd 88F 4G -7 $4F7 9IF$ . 1.2 957 -88 . 88T -C 8XG8T , -J8 8T=7 $4F 8T% 9D8x ?U9IF#$ 957%P$ . 2 4) E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . ASTM D 2270 DIN 51562 KS M 2014 2.2 GM E:4 / . EDS-T-7401 2.3
7、 dA E:4 / . None 3 4G 88 4 4G 9F$ . L = 0.8353Y2 + 14.67Y - 216 D = 0.6669Y2 + 2.82Y - 119 7 d2P , L: 100 E7 862P8 4*7t % 8 % 9D$* 4: 9D$:3L 08 2Q8T 9PE8 40 E72P8 % 9D$ . Y: 4*8 100 E7 862P8 % 9D$ . D: L - H. H: 100 E7 862P8 4*7t % 8 % 9D$* 4: , 9D$:3L 1008 2Q8T9PE8 40 E72P8 % 9D$ . 5.3.2 9D$:3L8 1
8、-C 0 . 9D$ :3L# $847 &d( 1F 9I3L8*) !+.8 F$ . DULHLULVI u 100 7 d2P , VI: 9D$:3L . U: 4*8 40 E72P8 % 9D$ . 5.4 B - . 5.4.1 9D$:3L* 1F#$ Fx7F 3L? H* F# - . GM KOREA ENGINEERING STANDARDS EDS-T-7718 Copyright 2011 General Motors Company All Rights Reserved August 2011 Page 3 of 4 Version : 4 5.4.1.1 I
9、f the kinematic viscosity of the oils at 100 E is 2 70 cSt, extract the corresponding value of H from appendix table. Measured values that are not listed, but are within the range of appendix table may be obtained by linear interpolation. 5.4.1.2 If the kinematic viscosity of the oils at 100 E is ab
10、ove 70 cSt, calculate the values of L and D as follows: H = 0.1684Y2 + 11.85Y - 97 Where, H: Kinematic viscosity at 40 E of a petroleum product of 0 viscosity index having the same kinematic index as the oil at 100 E . Y: Kinematic viscosity at 100 E of oil. 5.4.2 Calculation and Result of Viscosity
11、 Index. Calculating the viscosity index according to the following formula and round it to integer. 10000715.0 110 u NVI YUHNlogloglog Where, VI: Viscosity index. U: Kinematic viscosity of oil at 40 E (cSt). N: Invariable number. 6 Safety This standard may involve hazardous materials, operations, an
12、d 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 health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Gloss
13、ary. Viscosity Index: An arbitrary number used to characterize the variation of the kinematic viscosity of a petroleum product with temperature. (Measure of kinematic viscosity between 40 E and 100 E ). 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard shall be
14、referenced in other documents, drawings, etc., as follows: Test to EDS-T-7718 5.4.1.1 4*8 100 E72P8 % 9D$4 2 ) 70cSt 8 77# .E72P HF8x F$ . .E :E7 d8%L6 8: 68t % 9D$7 $48 F# H8 F8t .(8-7 &d( F$ . 5.4.1.2 4*8 100 E72P8 % 9D$4 70cSt* F$ . H = 0.1684Y2 + 11.85Y - 97 7 d2P , H: 100 E7 862P8 4*7t % 8 % 9D
15、$* 4: 9D$:3L 08 2Q8T9PE8 40 E7 862P8 % 9D$ . Y: 4*8 100 E7 862P8 % 9D$ . 5.4.2 9D$:3L8 1 -C 0 . 9D$ :3L# $8 47 &d( 1F 9I3L8*) !+.8F$ . 10000715.0 110 u NVI YUHNlogloglog 7 d2P , VI: 9D$:3L . U: 4*8 40 E72P8 % 9D$ (cSt). N: 13L . 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t
16、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 .* 9IF# 8t ., E:4 1788 =y8 1F8$ . 7 768 9I8 7.1 98,l 76 . 9D$ :3L : 7$7 &d* % 9D$8 -G* 3L?) !A! F (40 E7t 100 E72P8 % 9D$ F8p) 1F$ ). 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T
17、&# $80 M8 EdF$ . Test to EDS-T-7718 GM KOREA ENGINEERING STANDARDS EDS-T-7718 Copyright 2011 General Motors Company All Rights Reserved August 2011 Page 4 of 4 Version : 4 9 Release and Revisions This standard was originated in July 1993. It was first approved by Engineering Standard Committee in Ju
18、ly 1993. It was first published in July 1993. 9 9P9I -C P9I 8)Y ., E:48t 1993 “x 7 87 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1993“x 787 38%L6$ . ., E:48t 1993“x 787 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 AUG 2011 Apply new Engineering Standard Template. Superceded (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 . F9I957 =* (G)8*4G D4 )
