DLA A-A-52047 D-2013 TUBING NONMETALLIC (RUBBER AND PLASTIC).pdf
《DLA A-A-52047 D-2013 TUBING NONMETALLIC (RUBBER AND PLASTIC).pdf》由会员分享,可在线阅读,更多相关《DLA A-A-52047 D-2013 TUBING NONMETALLIC (RUBBER AND PLASTIC).pdf(11页珍藏版)》请在麦多课文档分享上搜索。
1、AMSC N/A FSC 4720 INCH-POUND A-A-52047D 19 August 2013 SUPERSEDING A-A-52047C 5 May 2003 COMMERCIAL ITEM DESCRIPTION TUBING, NONMETALLIC (RUBBER AND PLASTIC) The General Services Administration has authorized the use of this Commercial item description for all federal agencies. 1. SCOPE. This commer
2、cial item description (CID) covers the general requirements for tubing, nonmetallic (rubber and plastic). Tubing, nonmetallic (rubber and plastic) covered by this CID is intended for commercial/industrial applications. 2. CLASSIFICATION/PART OR IDENTIFYING NUMBER (PIN). This CID uses a classificatio
3、n system that is included in the PIN as shown in the following example (see 7.1). AA52047 J CR 3 E C L CID Size Material Style Elect. Color Length number code code (attribute) code codes (See 2.4) (3ft or as needed. See 2.3) (See table l & 2.2) (See table ll) (See table lll) (Code E if required blan
4、k if not. See 3.2) Comments, suggestions, or questions on this document should be addressed to DLA Land and Maritime, Attn: VAI, 3990 East Broad Street, Columbus, OH 43218-3990 or fluidflow.dla.mil. Since contact information can change, you may want to verify the currency of this address information
5、 using the ASSIST Online at https:/assist.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52047D 2 TABLE I. Size codes. Dimension (inch) Size code 1/8 J 3/16 A 1/4 B 5/16 C 3/8 D 1/2 E 5/8 F 3/4 G 1 H TABLE II. Material codes. Material T
6、ype code Material PIN code Commercial rubber tubing I CR Synthetic rubber tubing II SR Natural rubber compound tubing III NR Latex tubing IV LT Laboratory pure gum natural rubber or synthetic tubing V LP Plastic tubing VI PT TABLE III. Style (attribute) codes. Attribute Class code PIN code Light wal
7、l 1 1 Heavy wall 2 2 Pressure 3 3 Gooch 4 4 Vacuum 5 5 General use 6 6 Pressure & vacuum 7 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52047D 3 2.1 Type. The tubing covered by this CID should be of the following types and classes. 2.1.1 Typ
8、e I, Commercial rubber tubing. Type I tubing should be natural rubber, synthetic rubber, or a mixture of the two in the following classes: Class 1 - Light wall. Class 2 - Heavy wall. Class 3 - Pressure. Class 4 - Gooch. 2.1.2 Type II, Synthetic rubber tubing. Type II tubing should be compounded from
9、 synthetic rubber in the following classes: Class 1 - Light wall. Class 2 - Heavy wall. Class 5 - Vacuum connections. 2.1.3 Type III, Natural rubber compound tubing. Type III should be compounded from natural rubber (inside diameter as shown in 2.2 below with a tolerance of 0.062 inch, wall thicknes
10、s of 0.062 0.016 inch, (Length of 3 feet 1 inch). 2.1.4 Type IV, Latex tubing. Type IV tubing should be made from liquid natural rubber latex. 2.1.5 Type V, Laboratory pure gum, natural rubber, or synthetic tubing. Type V tubing shall be natural rubber or synthetic equivalent (CIS 1-4 polyisoprene)
11、in the following classes: Class 1 - Light wall. Class 2 - Heavy wall. Class 3 Pressure. Class 4 Gooch. 2.1.6 Type VI, Plastic tubing. Type VI plastic tubing should contain polyvinyl chloride as the base material in the following classes: Class 6 - General use. Class 7 - Pressure and vacuum. 2.2 Size
12、. The tubing covered by this CID should be of the following nominal sizes (in inches). 1/8 3/16 1/4 5/16 3/8 1/2 5/8 3/4 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52047D 4 2.3 Length. Lengths should be 3 feet 1 inch by default or as neede
13、d. 2.4 Color. Color as follows: Color type Material PIN code Any color A Black B Clear C Translucent, amber T 3. SALIENT CHARACTERISTICS. 3.1 Interface and physical dimensions. Tubing, nonmetallic (rubber and plastic) supplied to this CID shall be as specified herein. 3.2 Description. The tubing sha
14、ll be manufactured for use in laboratory procedures and special uses where softness and high purity are required and when electrical conductivity may be required. The physical properties shall be as shown in table I. 3.2.1 Specific gravity. The tubing shall have a specific gravity as defined in tabl
15、e I when tested in accordance with ASTM D792. 3.2.2 Tensile strength. 3.2.2.1 Initial. The tubing shall have an initial tensile strength as defined in table I when tested in accordance with ASTM D412. 3.2.2.2 Air heat test. The tubing shall have a tensile strength as defined in table I when tested i
16、n accordance with ASTM D573. 3.2.2.3 Immersion. The tubing shall have a tensile strength as defined in table I when tested in accordance with ASTM D543. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52047D 5 TABLE IV. Physical properties. 1/ Pr
17、operty Type I Type II Type III Type IV Type V Type VI Specific gravity (maximum) 1.4 - - - 0.97 - Tensile strength: Initial (psi) (minimum) 2400 1100 1200 3500 3000 2000 After air heat aging (7 days) (% of initial) (minimum) 75 75 75 75 1/75 - After 14 days immersion in a 3% salt solution at 82 F (2
18、8 C) (psi) (minimum) - - - - - 2000 Ultimate elongation: Initial (%) (minimum) 650 450 400 750 700 300 After 14 days immersion in a 3% salt solution at 82 F (28 C) (%) (minimum) - - - - - 300 Tensile stress at 100% elongation (psi) (maximum) 150 200 300 - 125 800 1/ Except that type IV tubing, 0.125
19、-inch inside diameter, shall retain a minimum of 65% of its original strength. 3.2.3 Ultimate elongation. 3.2.3.1 Initial. The tubing shall have an initial ultimate elongation as defined in table I, when tested in accordance with ASTM D412. 3.2.3.2 Immersion. The tubing shall have a tensile strength
20、 as defined in table I, when tested in accordance with ASTM D543. 3.2.4 Tensile stress at 100% elongation. The tubing shall have a maximum tensile stress at 100% elongation as defined in table IV, when tested in accordance with ASTM D412. 3.3 Electrical conductivity. When specified (see 7.4), the tu
21、bing shall be electrically conductive. The maximum resistance value over a 3-foot section of electrically conductive tubing shall be 1.0 megohm when tested in accordance with the applicable procedures specified in NFPA 99 except that the electrodes shall be attached at or near both ends of the tubin
22、g, before and after exposure to oxygen aging, liquid ethyl ether, oil immersion, and flexing. 3.3.1 Oxygen aging. The two 3-foot lengths of electrically conductive rubber tubing shall be aged as specified in ASTM D572 for a period of 94 1/2 hours. 3.3.2 Liquid ethyl ether. The two 3-foot lengths of
23、electrically conductive rubber tubing shall be maintained for 5 hours full of ethyl ether in the liquid phase. 3.3.3 Oil immersion. The two 3-foot lengths of electrically conductive rubber tubing shall be immersed in oil conforming to ASTM D471, No. 2, for 120 hours at a temperature of 73.4 3.6 F (2
24、3 2 C). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52047D 6 3.3.4 Flexing. The two 3-foot lengths of electrically conductive rubber tubing shall be passed back and forth over a pulley 1.750 inches in diameter. One end of the tubing shall be
- 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:
- DLAAA52047D2013TUBINGNONMETALLICRUBBERANDPLASTICPDF

链接地址:http://www.mydoc123.com/p-686412.html