AA-TP-2-1990.pdf
《AA-TP-2-1990.pdf》由会员分享,可在线阅读,更多相关《AA-TP-2-1990.pdf(15页珍藏版)》请在三一文库上搜索。
1、I N F m N m 0- O O O O O u) 3 O 4 O I l u I Q F a a 1990 the incorpor- Aluminum. Association o Copyright The Aluminum Association Inc. Provided by IHS under license with AA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/18/2007 11:35:18 MDTNo reproduction or networking permi
2、tted without license from IHS -,-,- . AA TP-2 m 0604500 0009313 209 m / No warranty or guarantee of any kind, expressed or implied, by the Aluminum Association or its member companies accompanies this information. Accordingly, the Aluminum Association and its member companies assume no responsibilit
3、y or liability for their use whether based on warranty, contract, negligence, strict liability, product liability, or otherwise. The use by any member or nonmember of this test procedure is purely voluntary. The Associations publication of this test procedure does not in any respect prevent or restr
4、ict any member or nonmember from manufacturing or supplying pr.oducts tested under this or any other test procedure. All Aluminum Association published standards, data, specifications and other material are reviewed at least every five years and revised, reaffied or withdrawn. Users are advised to c
5、ontact the Aluminum Association to ascertain whether the information in this publication has been superseded in the interim between publication and proposed use. Copyright The Aluminum Association Inc. Provided by IHS under license with AA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for
6、 Resale, 04/18/2007 11:35:18 MDTNo reproduction or networking permitted without license from IHS -,-,- 1. Scope : A A TP-2 Oh04500 0009334 345 W STANDARD TEST PROCEDURE FOR MEASURING THE DISSOLUTION OF ALUMINUM HARDENERS The Aluminum Association dissolution test procedure can be used to determine th
7、e suitability of an aluminum hardener product for alloying purposes. The test procedure describes a method for measuring dissolution time and recovery of the hardener element under standardized conditions. This method is not intended to predict dissolution rate or recovery under production condition
8、s in commercial operations. 2. Applicable Specifications and Registration Records - The following specifications or registration records (the issue in effect on date of material purchase) form a part of this test procedure: 2.1 Registration Record of Aluminum Association Designations and Chemical Co
9、mposition Limits for Aluminum Hardeners. 2.2 OSHA - 1910.1200 Hazard Communication Standard 2.3 Federal Test Method Standard No. 151 - Metals Methods 111.2 and 112.2 2.4 Metals Handbook Ninth Edition, Volume 9, Metallography and Microstructure Aluminum Alloys. p. 351. 2.5 ASTM B215, Standard Methods
10、 for Sampling Finished Lots Metal Powders. 2.6 ASTM E716, Standard Practice for Sampling Aluminum and Aluminum Alloys for Spectrochemical Analyses 3. Sample Location, Sample Frequency and Lot Definition 3.1 Ingot - Each heat of material shall be considered a lot. An ingot, selected randomly from a h
11、eat, may be considered representative of the lot. 3.2 Briquet - A lot is defined as a finite quantity produced under uniform conditions and should be clearly identified on material packaging. A shipment may contain more than one lot. Sample selection for chemical analysis shall be on a one lot basis
12、 and shall consist of one briquet pulled from each of three and not more than five randomly-selected shipping containers. these briquets are termed a “gross lot sample“ and will be the Combined, f Copyright The Aluminum Association Inc. Provided by IHS under license with AA Licensee=IHS Employees/11
13、11111001, User=Wing, Bernie Not for Resale, 04/18/2007 11:35:18 MDTNo reproduction or networking permitted without license from IHS -,-,- - 2 - basis for a discreet analytical determination. Multiple ltgross lot samples“ shall be pulled if multiple chemical determinations are required. Sample select
14、ion for dissolution rate testing shall be completed in a similar manner, however, the total number of briquets required is to be based on addition level, and test bath weight. This sample should be held separate from analytical sample(s). 3.3 Canned Hardeners - A lot is defined as a finite quantity
15、produced under uniform conditions. A single can shall be pulled from a randomly-selected product container. 3.4 Powder - A lot is defined as a finite quantity produced under uniform conditions. be taken from a randomly-selected product container using approved sample cutting techniques. A powder sam
16、ple of the required weight shall 4. Sample Preparation 4.1 Chemical Analysis - The randomly-selected samples shall be prepared as follows: AA TP-2 m Ob04500 0007315 081 m 4.1.1 Ingot - The chemical analysis sample shall be comprised of drillings. The drillings shall be obtained from five (5) positio
17、ns of the ingot, diagonally located (Figure l), and shall include approximate equal weight of drill chips from top, middle and bottom for each sample point of the ingot. The drillings shall be mixed to form the sample. 4.1.2 Briquet - The chemical analysis sample(s) for briqyetted hardeners shall co
18、nsist of ground material taken from the Itgross lot sample“ described in Section 3.2. The entire tgross lot sample“ must be crushed with a mortar and pestle or mechanical pulverizer, taking care to minimize contamination or carryover. freely pass through an 8 mesh (2.36mm) screen. The entire sample
19、is then blended in a suitably-sized blender. It is recommended that a suitably-volatile- blending-aid addition be made during the blending step. The blended gross sample is then passed through a sample splitter to obtain four subsamples, 25 to 50 grams weight each. If a blending aid was added, it sh
20、ould be dried from the final subsamples before analysis. Three The resulting powder must Copyright The Aluminum Association Inc. Provided by IHS under license with AA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 04/18/2007 11:35:18 MDTNo reproduction or networking permitted w
21、ithout license from IHS -,-,- - 3 - subsamples are analyzed. The final lot composition estimate is the average of the three separate analytical values 4.1.3 Powder - The required amount of powder shall be obtained from the sample using approved sample cutting techniques, per ASTM B215. 4.2 Dissoluti
22、on Rate - For determination of dissolution rate and recovery and metallographic examination, samples shall be prepared as follows: 4.2.1 Ingot - The randomly-selected ingot shall represent the heat. The sample for the dissolution test shall consist of one piece of the required weight, including top
23、and bottom surface from the center position of the ingot. 4.2.2 Briquet - The “dissolution sample“ collected as per Section 3.2 shall represent the production lot. It should consist of the required total briquet weight to meet addition level requirements for the involved test bath weight. Use of par
24、tial briquets should be avoided. 4.2.3 Powder and Cans - A randomly-selected powder sample or split sample, from the can, shall represent the batch or lot. 5. Chemical Composition 5.1 Procedure - The sample prepared in accordance with Section 4.1 shall be analyzed in accordance with Method 111.2 or
- 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:
- AA TP 1990
链接地址:https://www.31doc.com/p-3727938.html