Liên hệ 037.667.9506 hoặc email thekingheavengmail.com để nhờ đặt mua tất cả các tiêu chuẩn kỹ thuật quốc tế với giá rẻ. Tài liệu sẽ được gửi cho bạn trong 24 giờ kể từ ngày nhận thanh toán. Tiêu chuẩn ASTM là bộ tiêu chuẩn kĩ thuật cho các vật liệu và sản phẩm trên Thế giới được ban hành bởi tổ chức Quốc tế ASTM (American Society for Testing and Materials) – Hiệp Hội Vật Liệu Và Thử Nghiệm Hoa Kỳ. Những tiêu chuẩn mà tổ chức này đưa ra là sự đồng thuận và được cộng đồng quốc tế chấp nhận. Xem nội dung đầy đủ tại: https://123docz.net/document/15318633-astm-d167-12a-standard-test-method-for-apparent-and-true-specific-gravity-and-porosity-of-lump-coke.htm
NOTICE: This standard has either been superseded and replaced by a new version or discontinued Contact ASTM International (www.astm.org) for the latest information AMERICAN NATIONAL ANSI/ASTM D 292 - 29 (Reapproved 1978) STANDARD Standard Test Method for CUBIC FOOT WEIGHT OF COKE1 This Standard is issued under the fixed designation D 292; the number 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 I Scope 4 Sampling 1.l This method covers the determination 4.1 The gross sample collected shall be a of the cubic foot weight of coke 5 in (!25 representation of all size fractions in the coke mm) and smaller, that is, coke which would in being sampled The weight of the sample se- any position pass through a 5-in (125-mm) lected for the determination of the cubic foot square-mesh sieve weight depends upon the size and character of the coke and shall conform to the following: NOTE I-The values stated in U.S customary units are to be regarded as the standard For run-of-oven coke and coke not less than 300 lb I in up to 5 in (25 to 125 (136 kg) 2 ApplicableDocuments mm) in size not less than 50 lb 2.1 ASTM Standards: For coke smaller than I in in D 293 Sieve Analysis ofCoke 2 m~ D 346 Collection and Preparation of Coke ~re Samples for Laboratory Analysis 2 4.2 It is extremely difficult to obtain truly D 3173 Test for Moisture in the Analysis representative samples of coke having a range of sizes When the coke is on a belt conveyor Sample of Coal and Coke 2 the sample shall be selected by stopping the E 11 Specification for Wire-Cloth Sieves for belt at regular intervals and selecting incre- ments in sections about 3 ft (910 mm) in length Testing Purposes 2 and the entire width of the belt, or when the coke is going over a pulley or coming down a 3 Apparatus chute the sample shall be selected by inserting a container or scoop into the stream of coke 3.1 Measuring Box-A box 24 by 24 by 24 at regular intervals so as to take increments of in (610 by 610 by 610 mm) in inside dimen- the full width and thickness The increments sions shall be used In order to keep it as light shall be regularly and systematically collected, in weight as possible, the box may be made of so that the entire quantity of coke sampled wood, but it must be rigid Two strips of wood will be represented proportionately in the sam- may be fastened to the sides of the box to form ple, and with such frequency that a sample of "sedan-chair" handles for convenience in han- the required amount shall be collected It is dling not feasible to collect representative samples of coke from loaded cars or bins for cubic foot NOTE 2-For determining the cubic foot weight weight determinations Samples of coke in cars of coke smaller than I in (25.4 mm) in size, a measuring box 12 by 12 by 12 in (305 by 305 by 1 This method is under the jurisdiction of ASTM Com- 305 mm) in inside dimensions may be used mittee D-5 on Coal and Coke 3.2 Weighing Scale, platform type having a Current edition effective Sept 3, 1929 Originally issued sensitivity of 0.25 lb (0.11 kg) or better at rated 1928 Replaces D 292 - 28 T capacity and with graduations such that 0.5 lb (0.22 kg) can be read without interpolation 'Annual Book ofASTM Standards, Part 26 D 292 or bins should be taken as the cars or bins are acter of coke it is not practical to strike off being filled or emptied the excess coke by means of a straight-edge, so it is necessary to do this largely by eye S Procedure with the assistance of a straight-edge to check observations Do not shake, tap, or drop the 5.1 Place the measuring box on a siutable platform scale, weigh empty, and then fill box during filling or leveling off Weigh the with coke from the sample while the box is on box filled with coke The difference between the scale in order to avoid handling the heavy the two weights divided by the number of box of coke Fill the box by means of a shovel cubic feet in the box will give the weight per or other suitable container by allowing the coke to slide out of the shovel or container cubic foot of coke from a height of 2 in (50 mm) above the top of the box, with no attempt to spread or ar- NoTE 3-For proper interpretation of the cubic range the coke Because of the physical char- foot weight of coke, a moisture determination and a sieve analysis of the coke should be reported along with the cubic foot weight For directions for making these determinations see Section 2 The American Society for Testing and Materials takes no position respecting the validity of a"J patent rights asserted in connection with any item mentioned in this standard Users of this standard are expressly advise that determination of the validity of any such patent rights, and the risk of infringement of such rights, is 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 and if not revised, either reapproved or withdrawn Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, 1916 Race St., Philadelphia, Pa 19103, which will schedule a further hearing regarding your comments Failing satisfaction there, you may appeal to the ASTM Board of Directors