1、Designation: D1765 14Standard 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 revision. A nu
2、mber 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 classificatio
3、n ofrubber-grade carbon blacks by the use of a four-characternomenclature system. The first character gives some indicationof the influence of the carbon black on the rate of cure of atypical rubber compound containing the black. The secondcharacter gives information on the average surface area of t
4、hecarbon black. The last two characters are assigned arbitrarily.1.2 All rubber-grade carbon blacks for which a number iscurrently assigned at the time of publication of this classifica-tion system are listed in Table 1 together with some of theirtypical properties. ASTM classification numbers (“N”
5、or “S”designation) not listed in Table 1 have either been withdrawnor are not currently assigned. The use of inactive or unassignedN or S designations is prohibited until such a time as thedesignation is officially reactivated or assigned by Subcommit-tee D24.411.3 The values stated in SI units are
6、to be regarded asstandard. No other units of measurement are included in thisstandard.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 appro-priate safety and health practices a
7、nd determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1508 Test Method for Carbon Black, Pelleted Fines andAttritionD1510 Test Method for Carbon BlackIodine AdsorptionNumberD1513 Test Method for Carbon Black, PelletedPour Den-sityD1514 Tes
8、t Method for Carbon BlackSieve ResidueD2414 Test Method for Carbon BlackOil AbsorptionNumber (OAN)D3053 Terminology Relating to Carbon BlackD3265 Test Method for Carbon BlackTint StrengthD3493 Test Method for Carbon BlackOil AbsorptionNumber of Compressed Sample (COAN)D6556 Test Method for Carbon Bl
9、ackTotal and ExternalSurface Area by Nitrogen Adsorption3. Basis of Classification3.1 The first character in the nomenclature system forrubber-grade carbon blacks is a letter indicating the effect ofthe carbon black on the cure rate of a typical rubber compoundcontaining the black. The letter “N” is
10、 used to indicate a normalcuring rate typical of furnace blacks that have received nospecial modification to alter their influence on the rate of cureof rubber. The letter “S” is used for channel blacks or forfurnace blacks that have been modified to effectively reducethe curing rate of rubber. Chan
11、nel blacks characteristicallyimpart a slower rate of cure to rubber compounds. Thus, theletter “S” designates a slow cure rate. Blacks may varyconsiderably in “curing rate” within each of the two letterclassifications.3.2 The second character in the system is a digit to designatethe average surface
12、area of the carbon black as measured bynitrogen surface area. The surface area range of the carbonblacks has been divided into ten arbitrary groups, and each hasbeen assigned a digit to describe that group. These groups areas follows:Group No.Average NitrogenSurface Area, m2/g0 1501 121 to 1502 100
13、to 1203 70to994 50to695 40to496 33to397 21to328 11to2090toNOTE 1Some of the carbon blacks in Table 1 were assigned prior to1This classification system is under the jurisdiction ofASTM Committee D24 onCarbon Black and is the direct responsibility of Subcommittee D24.41 on CarbonBlack Nomenclature and
14、 Terminology.Current edition approved June 1, 2014. Published September 2014. Originallyapproved in 1965. Last previous edition approved in 2013 as D1765 13. DOI:10.1520/D1765-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org.
15、 For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1the establishment of the surface area classification system and may
16、falloutside of the specified ranges.3.3 The third and fourth characters in this system arearbitrarily assigned digits.4. Typical Properties of Carbon Blacks4.1 Each of the standard grades of carbon black shall havetarget and typical physical properties prescribed in Table 1.4.2 The properties enumer
17、ated shall be determined in ac-cordance with the ASTM test methods shown in Table 1.4.3 The following carbon black properties are not includedin Table 1 but do have previously established maximum values.4.3.1 Sieve ResidueTest Method D1514. Screen sizes500 m (No. 35), maximum 10 mg kg (ppm), and 45
18、m (No.325), maximum 1000 mg kg (ppm) for all grades.TABLE 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 center their s
19、pecifications.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 in processing eq
20、uipment.Target ValuesATypical Descriptive ValuesAASTMClassificationIodine Adsorp-tion No.,BD1510,g/kgOil AbsorptionNo. D2414,105m3/kgOil AbsorptionNo.CompressedSample,D3493,105m3/kgNSA MultipointD6556,103m2/kg(m2/g)STSAD6556103m2/kg(m2/g)TintStrength,D3265PourDensity,D1513,kg/m3(lb/ft3)N110 145 113
21、97 127 115 123 345 (21.5)N115 160 113 97 137 124 123 345 (21.5)N120 122 114 99 126 113 129 345 (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 82 120 107 115 415 (26.0)N21
22、9 118 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 78 76 111 455 (28.5)N
23、330 82 102 88 78 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 84 150 108 80 78 98 305 (19.0)N375 90 114 96 93 91 114 345 (
24、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)N683 35 133 85 36 34 . . . 355 (22.0)N750 27 120 81 27 2
25、6 . . . 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 9 . . . 640 (40.0)N908 . . . 34 . . . 9 9 . . . 355 (2
26、2.0)N990 . . . 38 37 8 8 . . . 640 (40.0)N991 . . . 35 37 8 8 . . . 355 (22.0)ASee note above. See also Terminology D3053.BIn general, Test Method D1510 can be used to estimate the surface area of furnace blacks but not channel, oxidized, and thermal blacks.CNew numbers are marked to designate that
27、the requestor has a one-year period, starting from the numbers approval date as shown in Footnote 1, to revise,byletterballot, target and typical values.D1765 1424.3.2 FinesTest Method D1508. Screen size 125 m (No.120). Maximum 7 % fines on bulk units for all grades exceptthermal blacks. The 5-min f
28、ines test shall be used, and samplesshall be taken from sample ports.4.4 The typical values shown in Table 1 are consensusvalues based on input from the various carbon black producers.Typical values often vary between suppliers; therefore, therange of data used to define the typical values is shown
29、in TableA1.1. These ranges in no way should be viewed as beingrelated to specification ranges.5. Procedures for Classifying a New Carbon Black5.1 Data for classification of a new grade of carbon blackare to be submitted to ASTM Headquarters, to the attention ofthe chairman of Subcommittee D24.41 on
30、Carbon BlackNomenclature and Terminology.5.2 Data to be submitted shall consist of typical values forthe following:Property Test ProcedureNitrogen adsorption, total and external surface area D6556Oil absorption number, compressed sample D3493Tint strength D3265Pour density D15135.3 Data to be submit
31、ted shall consist of target values for thefollowing properties:Property Test ProcedureIodine number D1510Oil absorption number D24145.4 When the chairman of Subcommittee D24.41 receives arequest to assign a classification number to a new carbon black,the following action is taken:5.4.1 Confirmation
32、that the new carbon meets the scope ofCommittee D24.5.4.2 Confirmation that the new carbon is commerciallyavailable.5.4.3 Establishment of the “N” or “S” first character assign-ment and the second character (number) assignment basedupon the data submitted with the request.5.4.4 Establishment of the
33、third and fourth character (num-ber) assignments based upon the information from the re-questor. Without specific information from the requestor, thesecharacters are arbitrarily assigned by the chairman of Subcom-mittee D24.41.5.4.5 A classification number that has been approved bySubcommittee D24.4
34、1 is no longer available for assignment,regardless of its status as active or withdrawn. Table 1 lists theactive designation numbers. The following designations areclassified as inactive and unavailable for reassignment:N119 N155 N166 N195 N230 N242 N270 N285N294 N296 S300 S301 N327 N332 N341 N345N3
35、63 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 byFootnote C in Table 1, are often based upon samples takenfrom a limited number of production runs. These table valuesmay change slightly when the sample results tak
36、en over alonger period are pooled. The requestor of a new standardgrade may pursue a revision of the table values by letter ballotduring the first year of publication to utilize the additionalpooled data. Changes to the table after the first year ofpublication would normally require the assignment o
37、f a newASTM designation.6. Keywords6.1 carbon black; classification of carbon blacks; industryreference blacks; typical properties of carbon black typesANNEXA1. LISTING OF DATA RANGES USED TO DERIVE TYPICAL VALUESA1.1 Although producers are encouraged to center theirprocess at the typical value leve
38、l defined in Table 1, differencesin manufacturing technology and process conditions such asreactor design, feedstock oil source, and so forth, exist.Consequently, any grade of carbon black produced at targetvalues may deviate from the documented typical value.A1.2 Table A1.1 contains the range of me
39、an values reportedby each carbon black producer that were used to define thevalues in Table 1. These ranges in no way should be viewed asbeing related to specification ranges.D1765 143ASTM International takes no position respecting the validity of any patent rights asserted in connection with any it
40、em 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 responsible technical com
41、mittee 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 consideration at a
42、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 Barr Harbor Driv
43、e, 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 website(www.astm.or
44、g). 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)NSA103m2/kg(m2/g)STSA103m2/kg(m2/g)Tint%ITRBPour Densitykg
45、/m3N110 9698 124130 A122124 335353N115 9698 136138 A122125 331353N121 111112 121122 A118121 312321N125 AAAAAN134 102105 140146 A128133 305337N220 96100 112115 105107 116117 337361N231 8588 108113 A119121 379417N234 100103 116121 109114 120124 307337N299 A103104 A112115 336345N326 6869 7780 7478 1101
46、13 446470N330 8589 7680 7476 103105 370393N339 96101 8992 8589 110112 328353N343 100107 9596 A111114 310326N347 97101 8586 8284 103106 324345N351 9597 7072 6871 99101 332353N358 108109 AA9899 AN375 9598 9195 9091 114115 345350N539 8082 AA. . . 377385N550 8387 3941 3840 . . . 353-369N650 8186 3338 32
47、36 . . . 358377N660 7275 3436 3435 . . . 432458N683 8088 3437 3335 . . . 342353N762 5761 2632 2630 . . . 490530N772 5860 3132 3031 . . . 507530N774 5965 2832 2731 . . . 469514N990 3637 79 69 . . . 642653N991 A79 79 . . . AAEither all values reported were the same or only one company submitted a value for this carbon black. Note: Carbon blacks with data from a single producer are notincluded.D1765 144
