1、Designation: D1765 16D1765 17Standard Classification System forCarbon Blacks Used in Rubber Products1This standard is issued under the fixed designation D1765; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This classification system covers the class
3、ification of rubber-grade carbon blacks by the use of a four-characternomenclature system. The first character gives some indication of the influence of the carbon black on the rate of cure of a typicalrubber compound containing the black. The second character gives information on the average surfac
4、e area of the carbon black.The last two characters are assigned arbitrarily.1.2 All rubber-grade carbon blacks for which a number is currently assigned at the time of publication of this classificationsystem are listed in Table 1 together with some of their typical properties. ASTM classification nu
5、mbers (“N” or “S” designation)not listed in Table 1 have either been withdrawn or are not currently assigned.The use of inactive or unassigned N or S designationsis prohibited until such a time as the designation is officially reactivated or assigned by Subcommittee D24.411.3 The values stated in SI
6、 units are to be regarded as standard. No other units of measurement are included in this standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and healt
7、h practices and determine the applicability of regulatorylimitations prior to use.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides
8、and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2D1508 Test Method for Carbon Black, Pelleted Fines and AttritionD1510 Test Method for Carbon BlackIodine Adsorption NumberD1513 Test Method for Carbon Blac
9、k, PelletedPour DensityD1514 Test Method for Carbon BlackSieve ResidueD2414 Test Method for Carbon BlackOil Absorption Number (OAN)D3053 Terminology Relating to Carbon BlackD3265 Test Method for Carbon BlackTint StrengthD3493 Test Method for Carbon BlackOil Absorption Number of Compressed Sample (CO
10、AN)D6556 Test Method for Carbon BlackTotal and External Surface Area by Nitrogen Adsorption3. Basis of Classification3.1 The first character in the nomenclature system for rubber-grade carbon blacks is a letter indicating the effect of the carbonblack on the cure rate of a typical rubber compound co
11、ntaining the black. The letter “N” is used to indicate a normal curing ratetypical of furnace blacks that have received no special modification to alter their influence on the rate of cure of rubber. The letter“S” is used for channel blacks or for furnace blacks that have been modified to effectivel
12、y reduce the curing rate of rubber. Channelblacks characteristically impart a slower rate of cure to rubber compounds. Thus, the letter “S” designates a slow cure rate. Blacksmay vary considerably in “curing rate” within each of the two letter classifications.1 This classification system is under th
13、e jurisdiction of ASTM Committee D24 on Carbon Black and is the direct responsibility of Subcommittee D24.41 on Carbon BlackNomenclature and Terminology.Current edition approved June 1, 2016May 1, 2017. Published July 2016May 2017. Originally approved in 1965. Last previous edition approved in 20142
14、016 asD1765 14.D1765 16. DOI: 10.1520/D1765-16.10.1520/D1765-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM websi
15、te.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior
16、editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.2 The second character in the system is a d
17、igit to designate the average surface area of the carbon black as measured bynitrogen surface area. The surface area range of the carbon blacks has been divided into ten arbitrary groups, and each has beenassigned a digit to describe that group. These groups are as follows:Group No. Average Nitrogen
18、Surface Area, m2/g0 1501 121 to 1502 100 to 1203 70 to 994 50 to 69TABLE 1 Carbon Black PropertiesNOTE 1The iodine adsorption number and oil absorption number values represent target values. A target value is defined as an agreed upon valueon which producers center their production process and users
19、 center their specifications.All other properties shown are averages of typical values suppliedby several manufacturers. Typical properties are dependent upon the target values and may vary from producer to producer at the same iodine adsorptionand oil absorption numbers because of the differences i
20、n processing equipment.Target ValuesA Typical Descriptive ValuesAASTMClassificationIodine Adsorp-tion No.,BD1510,g/kgOil AbsorptionNo. D2414,105 m3/kgOil AbsorptionNo.CompressedSample,D3493,105 m3/kgNSA MultipointD6556,103 m2/kg(m2/g)STSAD6556103 m2/kg(m2/g)TintStrength,D3265PourDensity,D1513,kg/m3(
21、lb/ft3)N110 145 113 97 127 115 123 345 (21.5)N115 160 113 97 137 124 123 345 (21.5)N120 122 114 99 126 120 129 345 (21.5)N121 121 132 111 122 114 119 320 (20.0)N125 117 104 89 122 121 125 370 (23.0)N134 142 127 103 143 137 131 320 (20.0)N135 151 135 117 141 . . . 119 320 (20.0)S212 . . . 85 82 120 1
22、07 115 415 (26.0)N219 118 78 75 . . . . . . 123 440 (27.5)N220 121 114 98 114 106 116 355 (22.0)N231 121 92 86 111 107 120 400 (25.0)N234 120 125 102 119 112 123 320 (20.0)N293 145 100 88 122 111 120 380 (23.5)N299 108 124 104 104 97 113 335 (21.0)S315 . . . 79 77 89 86 117 425 (26.5)N326 82 72 68 7
23、8 76 111 455 (28.5)N330 82 102 88 78 75 104 380 (23.5)N330 82 102 88 76 75 104 380 (23.5)N335 92 110 94 85 85 110 345 (21.5)N339 90 120 99 91 88 111 345 (21.5)N343 92 130 104 96 92 112 320 (20.0)N347 90 124 99 85 83 105 335 (21.0)N351 68 120 95 71 70 100 345 (21.5)N356 92 154 112 91 87 106N358 84 15
24、0 108 80 78 98 305 (19.0)N375 90 114 96 93 91 114 345 (21.5)N539 43 111 81 39 38 . . . 385 (24.0)N550 43 121 85 40 39 . . . 360 (22.5)N582 100 180 114 80 . . . 67N630 36 78 62 32 32 . . . 500 (31.0)N642 36 64 62 39 . . . . . .N650 36 122 84 36 35 . . . 370 (23.0)N660 36 90 74 35 34 . . . 440 (27.5)N
25、683 35 133 85 36 34 . . . 355 (22.0)N750 27 120 81 27 26 . . . 360 (22.5)N754 24 58 57 25 24 . . .N762 27 65 59 29 28 . . . 515 (32.0)N765 31 115 81 34 32 . . . 370 (23.0)N772 30 65 59 32 30 . . . 520 (32.5)N774 29 72 63 30 29 . . . 490 (30.5)N787 30 80 70 32 32 . . . 440 (27.5)N907 . . . 34 . . . 9
26、 9 . . . 640 (40.0)N908 . . . 34 . . . 9 9 . . . 355 (22.0)N990 . . . 38 37 8 8 . . . 640 (40.0)N991 . . . 35 37 8 8 . . . 355 (22.0)A See note above. See also Terminology D3053.B In general, Test Method D1510 can be used to estimate the surface area of furnace blacks but not channel, oxidized, and
27、thermal blacks.C New numbers are marked to designate that the requestor has a one-year period, starting from the numbers approval date as shown in Footnote 1, to revise, by letterballot, target and typical values.D1765 1725 40 to 496 33 to 397 21 to 328 11 to 209 0 to 10NOTE 1Some of the carbon blac
28、ks in Table 1 were assigned prior to the establishment of the surface area classification system and may fall outsideof the specified ranges.3.3 The third and fourth characters in this system are arbitrarily assigned digits.4. Typical Properties of Carbon Blacks4.1 Each of the standard grades of car
29、bon black shall have target and typical physical properties prescribed in Table 1.4.2 The properties enumerated shall be determined in accordance with the ASTM test methods shown in Table 1.4.3 The following carbon black properties are not included in Table 1 but do have previously established maxim
30、um values.4.3.1 Sieve ResidueTest Method D1514. Screen sizes 500 m (No. 35), maximum 10 mgkg (ppm), and 45 m (No. 325),maximum 1000 mgkg (ppm) for all grades.4.3.2 FinesTest Method D1508. Screen size 125 m (No. 120). Maximum 7 % fines on bulk units for all grades exceptthermal blacks. The 5-min fine
31、s test shall be used, and samples shall be taken from sample ports.4.4 The typical values shown in Table 1 are consensus values based on input from the various carbon black producers. Typicalvalues often vary between suppliers; therefore, the range of data used to define the typical values is shown
32、in Table A1.1. Theseranges in no way should be viewed as being related to specification ranges.5. Procedures for Classifying a New Carbon Black5.1 Data for classification of a new grade of carbon black are to be submitted to ASTM Headquarters, to the attention of thechairman of Subcommittee D24.41 o
33、n Carbon Black Nomenclature and Terminology.5.2 Data to be submitted shall consist of typical values for the following:Property Test ProcedureNitrogen adsorption, total and external surface area D6556Oil absorption number, compressed sample D3493Tint strength D3265Pour density D15135.3 Data to be su
34、bmitted shall consist of target values for the following properties:Property Test ProcedureIodine number D1510Oil absorption number D24145.4 When the chairman of Subcommittee D24.41 receives a request to assign a classification number to a new carbon black,the following action is taken:5.4.1 Confirm
35、ation that the new carbon meets the scope of Committee D24.5.4.2 Confirmation that the new carbon is commercially available.5.4.3 Establishment of the “N” or “S” first character assignment and the second character (number) assignment based upon thedata submitted with the request.5.4.4 Establishment
36、of the third and fourth character (number) assignments based upon the information from the requestor.Without specific information from the requestor, these characters are arbitrarily assigned by the chairman of Subcommittee D24.41.5.4.5 Aclassification number that has been approved by Subcommittee D
37、24.41 is no longer available for assignment, regardlessof its status as active or withdrawn. Table 1 lists the active designation numbers. The following designations are classified asinactive and unavailable for reassignment:N119 N155 N166 N195 N230 N242 N270 N285N294 N296 S300 S301 N327 N332 N341 N
38、345N363 N367 N440 N472 N542 N568 N601 N724N741 N761 N770 N779 N785 N790 N880 N8815.4.6 Target and typical values for a new standard, noted by Footnote C in Table 1, are often based upon samples taken froma limited number of production runs. These table values may change slightly when the sample resu
39、lts taken over a longer periodare pooled. The requestor of a new standard grade may pursue a revision of the table values by letter ballot during the first yearof publication to utilize the additional pooled data. Changes to the table after the first year of publication would normally requirethe ass
40、ignment of a new ASTM designation.6. Keywords6.1 carbon black; classification of carbon blacks; industry reference blacks; typical properties of carbon black typesD1765 173ANNEXA1. LISTING OF DATA RANGES USED TO DERIVE TYPICAL VALUESA1.1 Although producers are encouraged to center their process at t
41、he typical value level defined in Table 1, differences inmanufacturing technology and process conditions such as reactor design, feedstock oil source, and so forth, exist. Consequently,any grade of carbon black produced at target values may deviate from the documented typical value.A1.2 Table A1.1 c
42、ontains the range of mean values reported by each carbon black producer that were used to define the valuesin Table 1. These ranges in no way should be viewed as being related to specification ranges.ASTM International takes no position respecting the validity of any patent rights asserted in connec
43、tion 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 riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsib
44、le technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful cons
45、ideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 B
46、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained 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 webs
47、ite(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ A1.1 Range of DataASTMClassificationOAN No.Compressed105m3/kg(cm3/100g)NSA103 m2/kg(m2/g)STSA103 m2/kg(m2/g)Tint%I
48、TRBPour Densitykg/m3N110 9698 124130 A 122124 335353N115 9698 136138 A 122125 331353N121 111112 121122 A 118121 312321N125 A A A A AN134 102105 140146 A 128133 305337N220 96100 112115 105107 116117 337361N231 8588 108113 A 119121 379417N234 100103 116121 109114 120124 307337N299 A 103104 A 112115 33
49、6345N326 6869 7780 7478 110113 446470N330 8589 7680 7476 103105 370393N339 96101 8992 8589 110112 328353N343 100107 9596 A 111114 310326N347 97101 8586 8284 103106 324345N351 9597 7072 6871 99101 332353N358 108109 A A 9899 AN375 9598 9195 9091 114115 345350N539 8082 A A . . . 377385N550 8387 3941 3840 . . . 353-369N650 8186 3338 3236 . . . 358377N660 7275 3436 3435 . . . 432458N683 8088 3437 3335 . . . 342353N762 5761 2632 2630
