ASTM E2275-2003e1 Standard Practice for Evaluating Water-Miscible Metalworking Fluid Bioresistance and Antimicrobial Pesticide Performance《水可混金属加工液体抗生物作用和抗微生物杀菌剂性能评定的标准实施规程》.pdf
《ASTM E2275-2003e1 Standard Practice for Evaluating Water-Miscible Metalworking Fluid Bioresistance and Antimicrobial Pesticide Performance《水可混金属加工液体抗生物作用和抗微生物杀菌剂性能评定的标准实施规程》.pdf》由会员分享,可在线阅读,更多相关《ASTM E2275-2003e1 Standard Practice for Evaluating Water-Miscible Metalworking Fluid Bioresistance and Antimicrobial Pesticide Performance《水可混金属加工液体抗生物作用和抗微生物杀菌剂性能评定的标准实施规程》.pdf(7页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: E 2275 03e1Standard Practice forEvaluating Water-Miscible Metalworking Fluid Bioresistanceand Antimicrobial Pesticide Performance1This standard is issued under the fixed designation E 2275; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.e1NOTEFootnote 1 was editorially revised in November 2003.1. Scope1.1 This practice addresses the
3、 evaluation of the relativeinherent bioresistance of water-miscible metalworking fluids,the bioresistance attributable to augmentation with antimicro-bial pesticides or both. It replaces Methods D 3946 and E 686.1.2 In this practice relative bioresistance is determined bychallenging metalworking flu
4、ids with a biological inoculumthat may either be characterized (comprised of one or moreknown biological cultures) or uncharacterized (comprised ofbiologically contaminated metalworking fluid or one or moreunidentified isolates from deteriorated metalworking fluid).Challenged fluid bioresistance is
5、defined in terms of resistanceto biomass increase, viable cell recovery increase, chemicalproperty change, physical property change or some combina-tion thereof.1.3 This practice is applicable to antimicrobial agents thatare incorporated into either the metalworking fluid concentrateor end-use dilut
6、ion. It is also applicable to metalworking fluidsthat are formulated using non-microbicidal, inherently biore-sistant components.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish
7、 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 888 Test Methods for Dissolved Oxygen in WaterD 1067 Test Methods for Acidity or Alkalinity of WaterD 1193 Specification for Reagent Grade Wa
8、terD 3342 Method for Dispersion Stability of New (Unused)Rolling Oil Dispersions in WaterD 3519 Test Method for Foam in Aqueous Media (BlenderTest)D 3601 Test Method for Foam in Aqueous Media (BottleTest)D 4012 Test Method for Adenosine Triphosphate (ATP)Content of Microorganisms in WaterD 4627 Meth
9、od for Iron Chip Corrosion for Water-Dilutable Metalworking FluidsD 5465 Practice for Determining Microbial Colony Countsfrom Waters Analyzed by Plating MethodsE70 Test Method for pH of Aqueous Solutions with theGlass ElectrodeE 1326 Guide for Evaluating Nonconventional Microbio-logical tests Used f
10、or Enumerating BacteriaE 2169 Practice for Selecting Antimicrobial Pesticides foruse in Water-miscible Metalworking Fluids2.2 Other Standards:4.027 Synthetic Hard Water39215A.6a Heterotrophic Plate Count Media, Plate CountAgar49216 Direct Total Microbial Count4Microbiological Test 52.3 Government St
11、andard:40 CFR 156 Labeling Requirements for Pesticides and De-vices3. Terminology3.1 Definitions:3.1.1 active ingredient, nthe chemical component or com-ponents of an antimicrobial pesticide that provides its micro-bicidal performance.3.1.2 antimicrobial pesticide, nchemical additive regis-tered und
12、er 40 CFR 152, for use to inhibit growth, proliferationor both of microorganisms.1This practice is under the jurisdiction of ASTM Committee E35 on Pesticidesand Alternative Control Agents and is the direct responsibility of SubcommitteeE35.15 on Antimicrobial Agents.Current edition approved April 10
13、, 2003. Published May 2003.2For 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.3AOAC International Methods of Ana
14、lysis, AOAC International, Gaithersburg,MD.4Available from American Public Health Association (APHA) Standard Meth-ods for the Examination of Water and Wastewater 800 I Street, NW Washington, DC20001.5Available from U.S. Pharmacopeia/National Formulary (USP/NF), 12601Twinbrook Parkway Rockville, MD
15、20852.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.3 as supplied, adjantimicrobial pesticide finishedproduct including the active ingredient(s), solvent and anyadditional inactive ingredients.3.1.4 biocide, nany chemical inten
16、ded for use to killorganisms.3.1.5 bioresistant, adjability to withstand biological at-tack.3.1.5.1 DiscussionBioresistant, or recalcitrant, chemicalsare not readily metabolized by microorganisms.3.1.6 biostatic, adjable to prevent existing microbial con-taminants from growing or proliferating, but
17、unable to killthem.3.1.6.1 DiscussionBiostatic additives may be registeredantimicrobial pesticides or unregistered chemicals with otherperformance properties. The difference between biocidal andbiostatic performance may be attributed to dose, chemistry orboth.3.1.7 dose, nconcentration of antimicrob
18、ial pesticideadded to treated solution.3.1.7.1 DiscussionDose is generally expressed as eitherppm active ingredient (a.i.) or ppm as supplied (a.s.).3.1.8 inactive ingredient, ncomponent of antimicrobialpesticide that is not directly responsible for the pesticidesantimicrobial performance.3.1.8.1 Di
19、scussionInactive ingredients may include, butare not limited to solvents and chemicals that improve thepesticides non-biocidal performance properties, such as mis-cibility and reactivity with non-target molecules in the treatedmaterial.3.1.9 minimum inhibitory concentration (MIC), nlowesttreatment-d
20、ose that will prevent test population from growing,proliferating or otherwise contributing to biodeterioration.3.2 Abbreviations:3.2.1 a.i.active ingredient3.2.2 a.s.as supplied3.2.3 ATCCamerican type culture collection3.2.4 CFUcolony forming unit4. Summary of Practice4.1 End-use dilutions of one or
21、 more water-miscible metal-working fluids are dispensed into microcosms. The fluids maybe fresh or aged, dosed with one or more antimicrobialpesticides or undosed. Microcosms are challenged with eitheruncharacterized or characterized biological inocula. After in-oculation, microcosms are aerated eit
22、her continuously or peri-odically to simulate recirculation conditions in coolant sys-tems. Chips may also be added to microcosms to simulate chipaccumulation in coolant systems.4.2 After inoculation, fluid samples are drawn from eachmicrocosm periodically and tested for the parameters ofinterest, i
23、ncluding but not limited to microbial viable counts.Depending on the test objectives, the test duration may rangefrom 24 h to three months.4.2.1 Shorter test periods are used to evaluate microbicidespeed of kill and metalworking formulation initial bioresis-tance.4.2.2 Longer test periods are used t
24、o evaluate metalworkingfluid formulation resistance to repeated challenges. For testslasting longer than one-week, 10 to 80 % of the fluid isexchanged weekly with fresh fluid before the additionalchallenge. The percentage of fluid exchange should reflectanticipated fluid turnover rates in fluids end
- 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
5000 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:
- ASTME22752003E1STANDARDPRACTICEFOREVALUATINGWATERMISCIBLEMETALWORKINGFLUIDBIORESISTANCEANDANTIMICROBIALPESTICIDEPERFORMANCE
链接地址:http://www.mydoc123.com/p-530755.html