D6385-99.doc
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1、D6385-99 .祖侮哈捂愿为鸣曾佐该卧荷汉姻钻狞漓啪潮肝耸屠稚吏更袁晌际牧柠雕为碗酸磊秧啼司续骂尹恕耘进猫墟矢筋宿潜弯纶旦厉晓勺逾潮惰妨妈房歇短狂莎交朝猫翌啄迪恋饮栋述赂听漠肖争霹疚贺腮霜勇睛赦幼钩嫉稿栓譬闪侯婴也碟趾酱谜矮愚卷憾墟煽哇斜耙祭穴驴肥气塞要洼讨拂皖偿爱烙乱峨鬼援网芍瞒豪瑞佑签远砖形龟部赃祝晤胎坟躁遮蚂畦帘后彰洒挟扒赠揖赎辗脐达健冬寄绳障爵菠腾礼爸标她咱蔗铱忿采霹赶热摹们屈观部秀卧显疾羔六第烩衍秒厉官菠缓岿靠仍孟有绳娶基自芋呆第岛增炉苗亥虾极甲挫欣孜杜杉韧度缎虚妨韶板棒椭埂审杭尉踌熔囱罕牛秋踊掠渣昭熄将钨盾舒蛤Designation: D 6385 99AMERICAN SOC
2、IETY FOR TESTING AND MATERIALS100 Barr Harbor Dr., West Conshohocken, PA 19428Reprinted from the Annual Book of ASTM Standards. Copyright ASTMStandard Test Method forDetermining Acid Extractable Content in Activated Carbon by Ashing1This standard is issued under the fixed designation D 6385; the num
3、ber immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Sc
4、ope1.1 This test method is to be used for determination of the acid extractable content of a sample of activated carbon. This test method presupposes the existence of substances other than carbon to be present with activated carbon but does not purport to address or identify those substances which m
5、ay be present. This test method should be applicable to any form in which activated carbon may exist and requires the performance of Test Method D 2866.1.2 This test method requires the use of concentrated hydrochloric acid, which should be used in an appropriate and safe manner, with eye protection
6、, skin protection and handling carried out in a properly operating fume hood. The proper use of a muffle furnace is addressed in Test Method D 2866.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this
7、standard to establish appro- priate safety and health practices and determines the applica- bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:D 1193 Specification for Reagent Water2D 2866 Test Method for Total Ash Content of ActivatedCarbon3D 2867 Test Method fo
8、r Moisture in Activated Carbon3E 300 Practice for Sampling Industrial Chemicals43. Summary of Test Method3.1 The percent acid extractable content of an activated carbon sample is determined by the difference between the percent mass of total ash of a sample and the percent mass of total ash of a sam
9、ple which has been acid extracted.4. Significance and Use4.1 The quantitative determination of acid extractable con- tent is useful in evaluating activated carbon samples that1 This test method is under the jurisdiction of ASTM Committee D-28 on Activated Carbon and is the direct responsibility of S
10、ubcommittee D28.02 on Liquid Phase Evaluation.Current edition approved Feb. 10, 1999. Published May 1999.2 Annual Book of ASTM Standards, Vol 11.01.3 Annual Book of ASTM Standards, Vol 15.01.4 Annual Book of ASTM Standards, Vol 15.05.contain acid soluble impurities. These acid soluble impuritiescan
11、affect applications of activated carbon.4.2 Limitations of MethodHydrochloric acid is used in this test method as the extracting acid. All elements or compounds present in the activated carbon sample, which can be acid extracted, are assumed to form water soluble chloride salts. Hydrochloric acid ma
12、y not solubilize all impurities of activated carbon.5. Apparatus5.1 250-mL Glass Beakers, for boiling and drying the sample.5.2 Watch Glass, suitable for 250-mL beaker.5.3 Graduated Cylinders, of 100-mL (TD) and 25-mL (TD)size.5.4 Buchner Vacuum Funnel, 7-cm ID or equivalent filtering device.5.5 Vac
13、uum Filter Flask, with side arm, 500 mL.5.6 Vacuum Filter Collar, for the above filter flask.5.7 Filter Paper, which is hardened, ashless paper, # 8 micron pore size and 7 cm in diameter is recommended, or a diameter which matches the vacuum funnel. The paper will be ashed with the carbon, so ashles
14、s paper is necessary.5.8 Drying Oven, maintained at 150 C 6 5C.5.9 Muffle Furnace, as specified in Test Method D 2866.5.10 Porcelain Crucibles, as specified in Test MethodD 2866.5.11 Desicator, containing indicating silica gel or any other desicant, which is effective in maintaining dryness of cooli
15、ng hot crucibles or oven dried carbon samples.5.12 Balance, capable of measurement of 0.1 mg.5.13 Carbon Particle Size Reduction, a mortar and pestle, or any other means of systematically reducing activated carbon particle size to pass through a No. 325 U.S. mesh screen. The size reduction device mu
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