ASTM B880-2014 Standard Specification for General Requirements for Chemical Check Analysis Limits for Nickel Nickel Alloys and Cobalt Alloys《镍 镍合金和钴合金化学检查分析限值通用要求的标准规格》.pdf
《ASTM B880-2014 Standard Specification for General Requirements for Chemical Check Analysis Limits for Nickel Nickel Alloys and Cobalt Alloys《镍 镍合金和钴合金化学检查分析限值通用要求的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM B880-2014 Standard Specification for General Requirements for Chemical Check Analysis Limits for Nickel Nickel Alloys and Cobalt Alloys《镍 镍合金和钴合金化学检查分析限值通用要求的标准规格》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B880 03 (Reapproved 2008)B880 14Standard Specification forGeneral Requirements for Chemical Check Analysis Limitsfor Nickel, Nickel Alloys and Cobalt Alloys1This standard is issued under the fixed designation B880; the number immediately following the designation indicates the year ofor
2、iginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope Scope*1.1 This specification covers limits of variation for dete
3、rmining acceptability of the chemical composition of cast or wroughtnickel, nickel alloy, and cobalt alloy parts and/or material supplied by a producer. Check analysis limits for elements or for rangesof elements not currently listed herein shall be as specified in the applicable material specificat
4、ion or as agreed upon by purchaserand supplier.1.2 In case of any conflicting requirements, the requirements of the purchase order, the individual material specification, andthis general specification shall prevail in the sequence named.1.3 When specifically referenced in the material specification,
5、 the buyer may elect to apply check analysis limit to determineacceptability at his final acceptance or verification procedures. Check analysis limits are not permitted or are to be used by theproducer for their own ladle or ingot analysis acceptance testing.1.4 This standard does not purport to add
6、ress all of the safety concerns if any, associated with its use. It is the responsibilityof the user of this standard to become familiar with all hazards including those identified in the appropriate Material Safety DataSheet (MSDS) for this product/material as provided by the manufacturer, to estab
7、lish appropriate safety and health practices, anddetermine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical CompositionE88 Practice for Sampling Nonferrous
8、Metals and Alloys in Cast Form for Determination of Chemical CompositionE1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys2.2 SAE Standards:AMS 2269 Chemical Check Analysis Limits Nickel, Nickel Alloys and Cobalt alloys3. Terminology3.1 Definitions:3.1.1 check (p
9、roduct or verification) analysis, nanalysis made by buyer of parts and materials to verify conformity tospecification, or to determine variations in compositions within a heat or lot.3.1.1.1 DiscussionHeat or lot acceptance or rejection of parts and materials may be made by applying check limits as
10、described in 3.1.2. Check limitsof finished parts or material do not apply to elements whose percentage can be varied by fabricating techniques employed unlessthe sample is taken in such a manner as to exclude such variations.3.1.2 variation limit, under minimum or over maximum, nit is the amount of
11、 variation for a specified element, which may varyeither under or over the specified composition limit during an individual check analysis.1 This specification is under the jurisdiction of Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.07 on Refined
12、 Nickeland Cobalt and Their Alloys.Current edition approved March 1, 2008Oct. 1, 2014. Published March 2008October 2014. Originally approved in 1998. Last previous edition approved in 20032008 asB880 03.B880 DOI: 10.1520/B0880-03R08. 03 (2008). DOI: 10.1520/B0880-14.2 For referencedASTM standards, v
13、isit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an
14、ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as publish
15、ed by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.2.1 DiscussionIn no case shall the reported determinations of an
16、y element in a heat, using the same analytical procedure, vary both above andbelow the specified range.3.1.3 remainder or balance, nrefers to main element, which forms the basis of that particular alloy and from which the alloyis made.3.1.3.1 DiscussionIt is assumed to be present in an amount approx
17、imately equal to the difference between 100 % and the sum percentage of thealloying elements and listed impurities or residual elements. It need not be analyzed or need an actual percentage figure forreporting purposes.3.1.4 residual elements, each, maximum, nthe maximum amount of an individual elem
18、ent not mentioned specifically in thespecified composition, but specified or unspecified elements, not intentionally added, which may be present, due to their presencein starting raw materials or manufacturing processes.3.1.4.1 DiscussionProducers will not normally analyze for such elements, unless
19、specifically asked for in the specification or purchase order.3.1.4.2 DiscussionReporting analyses of unspecified elements is permitted.3.1.5 residual elements, total, maximum, remainder or balance, nthe sum total of the residual elements (seeelementcomprising the major portion of an alloys composit
20、ion, determined by subtracting the sum of the amounts of all analyzed elements(specified 3.1.4) which may be possibly present.elements, and when measured, unspecified elements) from 100 %.3.1.5.1 DiscussionIt is not inferred by this statementthe intention of 3.1.5 that an analysis need be made for e
21、ach element of the periodic table notmentioned specifically in the composition section.is required for any unspecified element.3.1.5.2 DiscussionA chemical analysis for the remainder or balance element is not required. The manufacturer is permitted to report the analysis ofthe element as “balance” o
- 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:
- ASTMB8802014STANDARDSPECIFICATIONFORGENERALREQUIREMENTSFORCHEMICALCHECKANALYSISLIMITSFORNICKELNICKELALLOYSANDCOBALTALLOYS

链接地址:http://www.mydoc123.com/p-462625.html