ImageVerifierCode 换一换
格式:PDF , 页数:2 ,大小:60.30KB ,
资源ID:528863      下载积分:5000 积分
快捷下载
登录下载
邮箱/手机:
温馨提示:
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   
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-528863.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(ASTM E1520-1999(2015) Standard Test Method for Particle Counts Per Pound of Granular Carriers and Dry-Applied Granular Formulations《粘土基杀虫剂配方和每磅粒状粘土吸收剂颗粒计数的标准试验方法》.pdf)为本站会员(吴艺期)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!

ASTM E1520-1999(2015) Standard Test Method for Particle Counts Per Pound of Granular Carriers and Dry-Applied Granular Formulations《粘土基杀虫剂配方和每磅粒状粘土吸收剂颗粒计数的标准试验方法》.pdf

1、Designation: E1520 99 (Reapproved 2015)Standard Test Method forParticle Counts Per Pound of Granular Carriers and Dry-Applied Granular Formulations1This standard is issued under the fixed designation E1520; the number immediately following the designation indicates the year oforiginal adoption or, i

2、n 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. Scope1.1 This test method is used to determine the number ofparticles per pound of granular

3、 carriers and granular pesticideformulations.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility o

4、f the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. For specificprecautionary statements, see Section 6.2. Referenced Documents2.1 ASTM Standards:2E11 Specification for Woven Wire Test Sieve Cloth

5、and TestSievesE725 Test Method for Sampling Granular Carriers andGranular PesticidesE726 Test Method for Particle Size Distribution of GranularCarriers and Granular PesticidesE727/E727M Test Methods for Determining Bulk Density ofGranular Carriers and Granular Pesticides3. Summary of Test Method3.1

6、A known weight of the granular carrier or granularpesticide formulation is placed on the top sieve of a stacked setof U.S. standard stainless steel screens. The sieves are shakenfor a specified period of time. The weight percent of thegranules retained on each sieve is determined. The number ofparti

7、cles per pound of granular material is then calculated.4. Significance and Use4.1 This test method was designed principally for claygranular carriers and clay-based granular formulations, butneed not be limited to these materials.4.2 This procedure is applicable to granules in the rangefrom 8 to 60

8、mesh (2.36 to 0.25 mm).4.3 The sieve sizes used to calculate total particle count willbe called the desired range and should be specified as part ofthe test results.5. Apparatus5.1 Mechanical Sieve Shaker, a Tyler RoTap sieve shaker orequivalent.5.2 Sieves, U.S. standard stainless steel 8-in. diamet

9、er sievesconforming to Specification E11.5.3 Bottom Receiver Pan and Top Sieve Cover.5.4 Interval Timer, adjustable, with an accuracy of +10 s.5.5 Balance, sensitivity of 0.01 g.6. Safety Precautions6.1 Before testing read the precautionary statements on theproduct label or the Material Safety Data

10、Sheet (MSDS), orboth. Take proper precautions to prevent skin contact andinhalation of the fines or vapors, or both. Take care to preventcontamination of the surrounding area. Always wear theappropriate safety equipment and, where indicated, wear respi-ratory devices approved by (NIOSH) for the prod

11、uct beingtested.7. Procedure7.1 Record tare weights of each sieve and bottom pan to60.01 g.7.2 Order stack of screens by size with the finest sieve nextto the pan.7.3 Use a representative sample of 100 6 5 g obtained inaccordance with Test Method E725.1This test method is under the jurisdiction of A

12、STM Committee E35 onPesticides, Antimicrobials, and Alternative Control Agents and is the directresponsibility of Subcommittee E35.22 on Pesticide Formulations and DeliverySystems.Current edition approved Oct. 1, 2015. Published November 2015. Originallyapproved in 1993. Last previous edition approv

13、ed in 2009 as E1520 - 99(2009).DOI: 10.1520/E1520-99R15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyr

14、ight ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States17.4 Weigh the sample to 60.01 g.7.5 Transfer the whole weighed sample onto the top sieve,cover, and shake for 10 min 6 10 s using the mechanical sieveshaker in accordance with Test Method E72

15、6 with the hammerdown.7.6 Remove the sieve assembly from the sieve shaker.Weigh each sieve and bottom pan separately. Calculate andrecord the weight of the retained material to the nearest 0.01 gby subtracting the tare weight from the measured sieve weightfor each sieve and bottom pan.8. Calculation

16、8.1 Calculate the percentage distributions in all sieve frac-tions including the bottom pan to give 100 %.R 5 F/S! 3100 (1)where:F = weight retained on sieve or pan,S = sum of retained weights, andR = percent retained on sieve or pan.8.2 Multiply the percentage of granules retained on eachsieve by t

17、he numbers specified in Table 1. Sum these products(P) for the particle count in the desired size range.8.3 Calculate the total particles per pound (kilogram) in thedesired range as follows (see Note 1):T 531.5 3PD(2)ST 531.5 3PD32.2046D(3)where:T = total particles per pound in the desired range,P =

18、 sum of particle counts in accordance with 8.2, andD = bulk density in pounds per cubic foot in accordancewith Test Methods E727/E727M.NOTE 1Refers to a density of 31.5 lb/ft3for clay used in Footnote Bof Table 1.9. Disposal of Sample9.1 After testing, store all materials in a safe manner anddispose

19、 of used material in accordance with product labeldirections or MSDS, or both.10. Precision and Bias10.1 This test method yields comparative data. The pass/failaspect of this test method should be determined by applicablespecifications. When used for specification purposes, the me-chanical shaker an

20、d test conditions must be agreed upon.10.2 This test method was developed for spherical ornear-spherical particles. Use with non-spherical particles mayproduce erroneous results.11. Keywords11.1 clay; granular carriers; particle count; particle sizeanalysis; particles per pound; particles per weight

21、; pesticideformulations; sieve analysisASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the

22、riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of

23、this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldma

24、ke your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained

25、by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Te

26、l: (978) 646-2600; http:/ 1 Sieve Range Particles per Pound of Each FractionA,B8/12 1 08012/14 4 30014/16 5 70016/18 7 30016/20 8 30018/20 9 50020/25 14 50020/30 20 00025/30 26 50030/35 46 00030/40 60 00035/40 76 00030/50 97 00040/45 120 00040/50 146 00045/50 175 00050/60 285 000A8/12 and 12/14 multipliers were experimentally determined by Ciba Geigy Corp.,Greensboro, NC, 1988, by the same procedure as in Footnote B.BGwyn, Jr., H. M., “Determining the Particle Count per Pound of GranularPesticides,” Agricultural Chemicals, June 1964.E1520 99 (2015)2

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