ASTM D6562-2006(2011) 5000 Standard Test Method for Determination of Gaseous Hexamethylene Diisocyanate (HDI) in Air with 9-(N-methylaminomethyl) Anthracene Method (MAMA) in the Wo.pdf
《ASTM D6562-2006(2011) 5000 Standard Test Method for Determination of Gaseous Hexamethylene Diisocyanate (HDI) in Air with 9-(N-methylaminomethyl) Anthracene Method (MAMA) in the Wo.pdf》由会员分享,可在线阅读,更多相关《ASTM D6562-2006(2011) 5000 Standard Test Method for Determination of Gaseous Hexamethylene Diisocyanate (HDI) in Air with 9-(N-methylaminomethyl) Anthracene Method (MAMA) in the Wo.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6562 06 (Reapproved 2011)Standard Test Method forDetermination of Gaseous Hexamethylene Diisocyanate(HDI) in Air with 9-(N-methylaminomethyl) AnthraceneMethod (MAMA) in the Workplace1This standard is issued under the fixed designation D6562; the number immediately following the designa
2、tion indicates the year oforiginal 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. Scope1.1 This test method covers the deter
3、mination of gaseoushexamethylene diisocyanate (HDI) in air samples collectedfrom workplace and ambient atmospheres. The method de-scribed in this test method collects separate fractions. Onefraction will be dominated by vapor, and the other fraction willbe dominated by aerosol. It is not known at th
4、e present timewhether this represents a perfect separation of vapor andaerosol, and in any case, there are not separate exposurestandards for vapor and aerosol. Therefore, in comparing theresults for isocyanate against a standard, results from the twofractions should be combined to give a single tot
5、al value. Thereason for splitting the sample into two fractions is to increaseanalytic sensitivity for the vapor fraction and also to give thehygienist or ventilation engineer some information concerningthe likely state of the isocyanate species. The analyses of thetwo fractions are different, and a
6、re provided in separate, linked,standards to avoid confusion. This test method is principallyused to determine short term exposure (15 min) of HDI inworkplace environments for personal monitoring or in ambientair. The analysis of the aerosol fraction is performed separately,as described in Test Meth
7、od D6561.1.2 Differential air sampling is performed with a segregat-ing device.2The vapor fraction is collected on a glass fiberfilter (GFF) impregnated with 9-(N-methylaminomethyl) an-thracene (MAMA).1.3 The analysis of the gaseous fraction is performed with ahigh performance liquid chromatograph (
8、HPLC) equippedwith ultraviolet (UV) and fluorescence detectors.1.4 The range of application of this test method, using UVand fluorescence detectors both connected in serial, has beenvalidated from 0.006 to 1.12 g of monomeric HDI/2.0 mL ofdesorption solution, which corresponds to concentrationsequiv
9、alent to 0.0004 to 0.075 mg/m3of HDI based on a 15-Lair sample. Those concentrations correspond to a range ofvapor phase concentrations from 0.06 ppb(V) to 11 ppb(V) andcover the established threshold limit value (TLV) value of 5ppb(V).1.5 The quantification limit for the monomeric HDI, usingthe UV
10、detection, has been established as 0.012 g/2 mL ofdesorption solution and as 0.008 g/2 mL, using the fluores-cence detector. These limits correspond to 0.0008 mg/m3and0.0005 mg/m3respectively for an air sampled volume of 15 L.These values are equal to ten times the standard deviation (SD)obtained fr
11、om ten measurements carried out on a standardsolution in contact with the GFF, whose concentration of 0.02g/2 mL is close to the expected detection limit.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of t
12、his standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. See Section 9 foradditional hazards.2. Referenced Documents2.1 ASTM Standards:3D1193 Specification for Reagent WaterD1356 Terminology Relating to Sampling and A
13、nalysis ofAtmospheresD1357 Practice for Planning the Sampling of the AmbientAtmosphereD5337 Practice for Flow Rate Calibration of PersonalSampling PumpsD6561 Test Method for Determination of Aerosol Mono-meric and Oligomeric Hexamethylene Diisocyanate (HDl)in Air with (Methoxy-2phenyl-1) Piperazine
14、(MOPIP) inthe Workplace2.2 Other Standard:1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct responsibility of Subcommittee D22.04 on Workplace AirQuality.Current edition approved Oct. 1, 2011. Published October 2011. Originallyapproved in 2000. Last pr
15、evious edition approved in 2006 as D6562 - 06. DOI:10.1520/D6562-06R11.2The sampling device for isocyanates is covered by a patent held by JacquesLesage et al, IRSST, 505 De Maisonneuve Blvd. West, Montreal, Quebec, Canada.If you are aware of an alternative to this patented item, please provide this
16、information to ASTM Headquarters. Your comments will receive careful consider-ation at a meeting of the responsible technical committee,1which you may attend.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of A
17、STMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Sampling Guide for Air Contaminants in the Workplace43. Terminology3.1 For definitions o
18、f terms used in this test method, refer toTerminology D1356.4. Summary of Test Method4.1 Vapor and aerosol fractions are sampled simultaneouslyby using a segregating sampling device. The aerosols arecollected on a polyterafluoroethylene (PTFE) filter while thegaseous fraction is being adsorbed on th
- 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。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,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:
- ASTMD6562200620115000STANDARDTESTMETHODFORDETERMINATIONOFGASEOUSHEXAMETHYLENEDIISOCYANATEHDIINAIRWITH9NMETHYLAMINOMETHYLANTHRACENEMETHODMAMAINTHEWOPDF

链接地址:http://www.mydoc123.com/p-522870.html