GPA STD 3132-1984 Natural Gasoline Specifications and Test Methods《天然汽油的规范和试验方法》.pdf
《GPA STD 3132-1984 Natural Gasoline Specifications and Test Methods《天然汽油的规范和试验方法》.pdf》由会员分享,可在线阅读,更多相关《GPA STD 3132-1984 Natural Gasoline Specifications and Test Methods《天然汽油的规范和试验方法》.pdf(33页珍藏版)》请在麦多课文档分享上搜索。
1、GPA STD*3L32 84 3824699 0000297 7 - GPA Standard 31 32-84 Natural Gasoline Specifications and Test Methods Reprinted 7 980 Revised I984 Gas Processors Association 1812 First Place Tulsa, Oklahoma 741 03 Non- Mem bers: Single copies .$6.00 . Members: Single copies .4.W 1 O or more copies, each . .3.0
2、0 GPA STDa3132 84 m 3824699 O000299 O m TABLE OF CONTENTS GPA Specifications and Test Methods for Natural Gasoline . 4 ASTM D-130-80: Detection of Copper Corrosion from Petroleum Products by the Copper Strip Tarnish Test 5 ASTM D-156-82: Saybolt Color of Petroleum Products 13 ASTM D-216-77 (1 982):
3、Distillation of Natural Gasoline .20 ASTM D-323-82: Vapor Pressure of Petroleum Products (Reid Method). . 24 GPA 1 138: Standard Doctor Test for Natural Gasoline . .33 NOTE: ASTM test methods included in this publication have been adopted by GPA, and are included through a right-to-reprint agreement
4、 with, and by special permission of, the American Society for Testing and Materials, 191 6 Race Street, Philadelphia, Pa -. I GPA STD*3L32 84 m 3824b 0000300 3 m Natural Gasoline Specifications and Test Methods Scope: These specifications state the required properties of Natural Gasoline. Natural ga
5、soline is a mixture of liquid hydrocarbons extracted from natural gas, com- posed principally of pentanes and heavier hydrocarbons, although varying amounts of butanes may be included, depending on the commercial grade. Natural gasoline is defined further for commerical purposes by the following: Pr
6、oduct Characteristic Specification Test Method Reid Vapor Pressure 10-34 pounds ASTM D-323-82 Percentage evaporated at 140F 25-85 ASTM D-216-77 (82) ASTM D-216-77 (82) Ehd point not more than 375F ASTM D-216-77 (82) Percentage evaporated at 275F not less than 90 Corrosion not more than classificatio
7、n 1 ASTM D-130-80 (modified) Color not less than plus 25 (Saybolt) ASTM D-156-82 Reactive sulfur Negative, “sweet” GPA 1138 In addition to the above general specifications, natural gasoline shall be divided into twenty-four possible grades on a basis of vapor pressure and percentage evaporated at 14
8、0F. Each grade shall have a range in vapor pressure of four pounds, and a range in the percentage evaporated at 140F of i 5 percent. The maximum vapor pressure of the various grades shall be 14, 18, 22, 26, 30, and 34 pounds respectively. The minimum percentage evaporated at 140F shall be 25, 40, 55
9、, and 70 respectively. Each grade shall be designated by its maximum vapor pressure and its minimum percentage evap- orated at 140”F, as shown in the following table: GRADES OF NATURAL GASOLINE Percentage Evaporated at 140F 25 40 15 70 85 Grade 34-25 Grade 34-40 Grade 34-55 Grade 34-70 Grade 30-25 G
10、rade 30-40 Grade 30-55 Grade 30-70 Grade 26-25 Grade 26-40 Grade 26-51 Grade 26-70 Grade 22-25 Grade 22-40 Grade 22-55 Grade 22-70 18 Z Grade 18-25 Grade 18-40 Grade 18-55 Grade 18-70 2 14 Grade 14-25 Grade 14-40 Grade 14-55 Grade 14-70 10 34 7 30 8 26 3 22 -4- GPA STD83132 84 3824699 000030L 5 Desi
11、gnation: D 130 - 83 Nb Designation: 1%/78 An Amencan National Standard Federation of Societies for Paint Tedirology Standard No. Dt-28-65 British Standard 4351 Deutsche Nomi DIN 51759 Standard Method for DETECTION OF COPPER CORROSION FROM PETROLEUM PRODUCTS BY THE COPPER STRIP TARNISH TEST This stan
12、dard is issued under the fixed designation D 130; the number immediately following the designation indicates the year of original adoption or, in the case of revision. the year of last revision. A number in parentheses indicates the year of last reapproval. This is also a standard of the Institute o
13、f Petroleum issued under the fixed designation IP 154. The final number indicates the year of last revision. This method was adopted as a joint ASTM-IP standard in 1964. This merhod has been adopted for use by government agencies to replace Method 5325 of Federal Test Method Standard.No. 791 b. 1. S
14、cope 1.1 This method covers the detection of the corrosiveness to copper of aviation gasoFine, avia- tion turbine fuel, automotive gasoline, natural gasoline or other hydrocarbons having a Reid vapor pressure no greater than 18 psi (1 24 kPa) (Caution-see 1.2 and Annex A2.), cleaners (Stoddard) solv
15、ent, kerosine, diesel fuel, distillate fuel oil, lubricating oil, and certain other petro- leum products. 1.2 Caution-Some products, particularly natural gasoline, may have a much higher vapor pressure than would normally be characteristic of automotive or aviation gasolines. For this reason, extrem
16、e caution must be exercised to assure that the test bomb containing natural gas- din also a supply of 105-pm (150-mesh) silicon carbide grain and pharmaceutical grade absorbent cotton (cotton wool). 6.3 Copper Strips: 6.3.1 Specipcation-Use strips 12.5 mm (% in.) wide, 1.5 to 3.0 mm (%6 to ?h in.) t
17、hick, cut 75 mm (3 in.) long from smooth-surfaced, hard- temper, cold-fmished copper of 99.9 + percent purity; electrical bus bar stock is generally suit- able (see Appendix). The strips may be used repeatedly but should be discarded when the surfaces become deformed on handling. 6.3.2 Surface Prepa
18、ration-Remove ali sur- face blemishes from all six sides of the strip with silicon carbide paper of such degrees of fineness as, are needed to accomplish the de- sired results efficiently. Finish with 65-pn (240- grit) silicon carbide paper or cloth. removing all marks that may have been made by oth
19、er grades of paper used previously. Immerse the strip in wash solvent from which it may be withdrawn immediately for final polishing or in which it may be stored for future use. 6.3.2.1 As a practical manual procedure for surface preparation, place a sheet of the paper on a flat surface, moisten it
20、with kerosine or wash solvent, and tub the strip against the paper with a rotary motion, protecting the strip from contact with the fingers with an ashless filter paper. Alternatively, the surface of the strip may be prepared by use of motor-driven machines using appropriate grades of dry paper or c
21、loth. 6.3.3 Final Polishing-Remove a strip from the wash solvent. Holding it in the fingers protected with ashless filter paper. polish first the ends and then the sides with the 105-pm (150-mesh) silicon carbide grains picked up -6- - GPA STD*3132 84 W 3824699 0000303 9 COPPER CORROSION FROM PETROL
22、EUM PRODUCTS (ASTM D 130 - IP 154) from a clean glass plate with a gad of cotton (cotton wool) moistewd with a drop of wash solvent. Wipe vigorously with fresh pads of cotton (cotton wool) and subsequently handle only with stainless steel forceps; do not couch with thejngers. Clamp in a vise and pol
23、ish the main surfaces with silicon-carbide grains on absorbent cotton. Rub in the direction of the long axis of the strip, carrying the stroke be- yond the end of the strip before reversing the direction. Clean all metal dust from the strip by rubbing vigorously with clean pads of ab- sorbent cotton
24、 until a fresh pad remains un- soiled. When the strip is clean, immediately immerse it in the prepared sample. 6.3.3.1 It is important to polish the whole surface of the,strip uniformly to obtain a uni- formly stained strip. If the edges show wear (surface elliptical) they will likely show more corr
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- GPASTD31321984NATURALGASOLINESPECIFICATIONSANDTESTMETHODS 天然 汽油 规范 试验 方法 PDF

链接地址:http://www.mydoc123.com/p-782343.html