ImageVerifierCode 换一换
格式:PDF , 页数:4 ,大小:30.85KB ,
资源ID:746753      下载积分:10000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
如填写123,账号就是123,密码也是123。
特别说明:
请自助下载,系统不会自动发送文件的哦; 如果您已付费,想二次下载,请登录后访问:我的下载记录
支付方式: 支付宝扫码支付 微信扫码支付   
注意:如需开发票,请勿充值!
验证码:   换一换

加入VIP,免费下载
 

温馨提示:由于个人手机设置不同,如果发现不能下载,请复制以下地址【http://www.mydoc123.com/d-746753.html】到电脑端继续下载(重复下载不扣费)。

已注册用户请登录:
账号:
密码:
验证码:   换一换
  忘记密码?
三方登录: 微信登录  

下载须知

1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。
2: 试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
3: 文件的所有权益归上传用户所有。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 本站仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

版权提示 | 免责声明

本文(FORD FLTM AK 002-1-2001 ACID ACCEPTANCE AND STABILITY TESTS FOR TRICHLORETHYLENE.pdf)为本站会员(livefirmly316)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

FORD FLTM AK 002-1-2001 ACID ACCEPTANCE AND STABILITY TESTS FOR TRICHLORETHYLENE.pdf

1、 FORD LABORATORY TEST METHOD AK 002-01 Date Action Revisions 2001 01 16 Revised Editorial no technical changes A. Cockman 1992 06 05 Printed copies are uncontrolled Page 1 of 4 Copyright 2001, Ford Global Technologies, Inc. ACID ACCEPTANCE AND STABILITY TESTS FOR TRICHLORETHYLENE Application This pr

2、ocedure describes three test methods which are used to evaluate trichlorethylene used in vapor degreasing operations. Description of Tests Trichlorethylene is subject to chemical breakdown under certain conditions with the formation of acidic constituents which are corrosive to metal parts. The foll

3、owing methods are used to determine the amount of acid formation and the stability of the trichlorethylene. Method A Determines the original acid acceptance value of the trichlorethylene which is a measure of the amount of acid which it will absorb. Method B Determines the degree of retention of the

4、 original acceptance value after refluxing with and distilling from fatty acids. This test simulates the refluxing action of trichlorethylene and grease or oil in a degreasing operation. Method C Simulates the action of trichlorethylene on aluminum. It measures the retention of the original acceptan

5、ce value after refluxing with aluminum chloride. Methods B and C are measures of the stability of the trichlorethylene under normal degreasing conditions. Apparatus Required Condenser Hot Plate 100 mL Erlenmeyer Flask For refluxing sample. FORD LABORATORY TEST METHOD AK 002-01 Page 2 of 4 Copyright

6、2001, Ford Global Technologies, Inc. 500 mL Distillation Flask 500 mL Erlenmeyer flask 25, 50 mL Graduate 1 mL Pipet Fitted with rubber bulb. 50 mL Buret Reagents Required Standard Sodium Hydroxide 0.1 N; see Ford Laboratory Test Method AZ 002-01, Reagent No. 1. Standard Alcoholic HCl Approximately

7、0.03 N; see Ford Laboratory Test Method AZ 002-01, Reagent No. 2. Phenolphthalein See Ford Laboratory Test Method AZ 002-01, Reagent No. 101. Aluminum Chloride Anhydrous - A.C.S. Oleic Acid Clear - U.S.P. Conditioning and Test Conditions All test values indicated herein are based on material conditi

8、oned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. FORD LABORATORY TEST METHOD AK 002-01 Page 3 of 4 Copyright 2001, Ford Global Technologies, Inc. Procedure Method A

9、- Original Acid Acceptance Value 1. Pipet 15 mL of trichlorethylene into a 100 mL Erlenmeyer flask and add by pipet 25 mL of alcoholic HCl solution. 2. Attach a water-cooled condenser to the flask, place on the electric hot plate and reflux for five minutes. 3. Remove the flask, cool and add 25 mL o

10、f distilled water. 4. Add 1 mL of phenolphthalein and titrate with standard NaOH (0.1 N) to a pink endpoint. Calculate as follows: (A x B) - (C x D) x 0.04 x 100 = acid acceptance as % NaOH 15 x 1.46 Where: A = mL of methanol - HCl solution added B = normality of methanol - HCl solution C = mL of Na

11、OH added D = normality of NaOH and 1.46 = Sp. Cr. of the trichlorethylene Method B - Acid Acceptance after Distillation from Fatty Acid 1. Transfer 300 mL of trichlorethylene to a 500 mL distillation flask. 2. Add 30 mL of oleic acid, attach a water-cooled condenser and distill 240 mL of trichloreth

12、ylene into an Erlenmeyer flask. 3. Label the distillate. To 15 mL of it add by pipet 25 mL of methanol HCl solution and follow Steps 2 - 4 of Method A. Report as acid acceptance value (% NaOH) after distillation from fatty acid. FORD LABORATORY TEST METHOD AK 002-01 Page 4 of 4 Copyright 2001, Ford

13、Global Technologies, Inc. Method C - Acid Acceptance after Exposure to Aluminum Chloride 1. Pipet 200 mL of the labeled distillate obtained in Method B, to a 500 mL Erlenmeyer flask. 2. Weigh 0.25 +/- 0.02 g of anhydrous aluminum chloride and add to the trichlorethylene. 3. Attach a water-cooled con

14、denser to the flask and reflux for ten minutes. 4. Allow to cool for ten minutes and filter 100 mL of the sample through a close paper to remove solid aluminum chloride. 5. Determine acid acceptance value on 15 mL of sample using Method A. 6. Report as acid acceptance value (% NaOH) after exposure t

15、o active metal chloride. Note: Aluminum chloride is unstable in air and must be protected from moisture, both while being weighed out (Step No. 2) and during the filter operation (Step No. 4). Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities.

copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
备案/许可证编号:苏ICP备17064731号-1