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答案（中文）
第68条适用于分子式为CnF2n +1-C(= O)OH的直链和支链全氟羧酸（其中n = 8、9、10、11、12或13，即C9-C14 PFCA），包括其盐类及其任意组合。这六种C9-C14 PFCA分别为：C9- PFCA - PFNA，EC编号：206-801-3，CAS编号：375-95-1；C10-PFCA - PFDA，EC编号：206-400-3，CAS编号：335-76-2；C11-PFCA - PFUnDA，EC编号：218-165-4，CAS编号：2058-94-8；C12-PFCA - PFDoDA，EC编号：206-203-2，CAS编号： 307-55-1C13-PFCA - PFTrDA EC Nr. 276-745-2 CAS Nr. 72629-94-8C14-PFCA - PFTeDA EC Nr. 206-803-4 CAS Nr. 376-06-7及其盐类，任何含有分子式为CnF2n +1-的全氟基团直接连接到另一个碳原子上的C9-C14 PFCA相关物质，其中n = 8、9、10、11、12或13，包括它们的盐类及其任意组合。这些相关物质可以降解或转化为C9-14酸。PFCA相关物质是指根据其结构式，被认为具有降解或转化为C9-14全氟羧酸（直链和/或支链）潜力的物质。 - 例如十九氟癸酸铵和2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,12,12,12-二十二氟-11-(三氟甲基)-十二烷酰氟。然而，需要注意的是，十九氟十五酸甲酯这种物质的全氟基团CnF2n+1-直接连接到另一个碳原子上，而全氟链(C14F29-)不属于n=8、9、10、11、12或13的范围，因此不在本限制范围内。术语CnF2n+1-是指任何支链或直链的全氟烷基部分，其碳原子上的所有H取代基均已被F原子取代。 “-”表示“键合”，任何基团都可以与 CnF2n+1- 部分键合，例如碘。如果 CnF2n+1- 直接与另一个碳原子连接，则不在本范围之内。3.任何 C9-C14 PFCA 相关物质，其全氟基团的分子式为 CnF2n +1-，且不直接与另一个碳原子连接，其中 n = 9、10、11、12、13 或 14，包括它们的盐及其任意组合。该基团的一个例子是：1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-三氟-11-碘-十一烷：以下物质被排除在外：4. 分子式为 CnF2n +1-X 的物质，其中 X = F、Cl 或 Br，n = 9、10、11、12、13 或 14，包括它们的任意组合。这些是连接有卤素的全氟物质，因此是另一组不属于降解为全氟羧酸 (PFCA)。碘不在本类排除之列，因为它是调聚反应的起点。5. 分子式为 CnF2n +1-C(= O)OX' 的物质，其中 n> 13，X'= 任意基团，包括盐。术语 X' 表示任何可能的功能基团。本排除适用于碳原子数高于第 1 款所述碳原子数的全氟基团物质，这些物质不受本限制，因为只有 C9-C14 的全氟羧酸 (PFCA) 被认定为 PBT 或 vPvB 物质。直链和支链 C9-C14 全氟羧酸均包含在限制条目 68 的范围内。含有具有足够长全氟部分的结构元素的多氟化（即部分氟化）物质包含在限制范围内，因为它们会降解为全氟化（完全氟化）C9-C14 PFCA，例如 8:2 FTOH：含有其他部分氟化结构元素的多氟化物质（例如以下物质）不包含在限制范围内，因为它们不包含具有足够长全氟部分的结构元素（例如 2,2,3,3,4,4,5,6,6,7,7,8,8,9,9,9-十六氟壬基甲基丙烯酸酯：需要注意的是，如果某种物质包含范围之内和之外的结构元素，则该物质仍在范围内。更多信息可在 ECHA 网站的“限制意向登记直至结果”部分中访问的最终背景文件中找到。
Answer (EN)
Entry 68 applies to Linear and branched perfluorocarboxylic acids of the formula CnF2n +1-C(= O)OH where n = 8, 9, 10, 11, 12, or 13 (C9-C14 PFCAs) including their salts and any combination thereof. These are the six C9-C14 PFCAs namely:C9- PFCA - PFNA, EC Nr. 206-801-3 CAS Nr. 375-95-1C10-PFCA - PFDA, EC Nr. 206-400-3 CAS Nr. 335-76-2C11-PFCA - PFUnDA EC Nr. 218-165-4 CAS Nr. 2058-94-8C12-PFCA - PFDoDA EC Nr. 206-203-2 CAS Nr. 307-55-1C13-PFCA - PFTrDA EC Nr. 276-745-2 CAS Nr. 72629-94-8C14-PFCA - PFTeDA EC Nr. 206-803-4 CAS Nr. 376-06-7and their salts, Any C9-C14 PFCA-related substance having a perfluoro group with the formula CnF2n +1- directly attached to another carbon atom, where n = 8, 9, 10, 11, 12, or 13, including their salts and any combinations thereof.These are the related substances which can degrade or be transformed to the C9-14 acids. PFCA-related substances are substances that, based upon their structural formulae, are considered to have the potential to degrade or be transformed to C9-14 perfluorocarboxylic acids (linear and/or branched). - e.g. Ammonium nonadecafluorodecanoate and 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,12,12,12-docosafluoro-11-(trifluoromethyl)- dodecanoyl fluoridehowever, note that the substance methyl nonacosafluoropentadecanoate has a perfluoro group CnF2n+1- directly attached to another carbon atom however the perfluorinated chain (C14F29-) does not fall within the range n=8, 9, 10, 11, 12 or 13 and is outside the scope of the restriction. The nomenclature CnF2n+1- means any branched or linear perfluorinated alkyl moiety containing carbon atoms on which all the H substituents have been replaced by F atoms. The `-´ represents ‘bonded to’ and any group can be bonded to the CnF2n+1- moiety, including for example iodine. If CnF2n+1- is directly attached to another carbon atom it is out of scope.3. Any C9-C14 PFCA-related substance having a perfluoro group with the formula CnF2n +1- that it is not directly attached to another carbon atom, where n = 9, 10, 11, 12, 13 or 14 as one of the structural elements, including their salts and any combinations thereof.An Example of this group is: 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-tricosafluoro-11-iodo-undecane:The following substances are excluded: 4. Substances with formula CnF2n +1-X, where X = F, Cl, or Br where n = 9, 10, 11, 12, 13 or 14, including any combinations thereof.These are perfluorinated substances with a halogen attached and as such are a different group of substances that are not degraded to PFCAs. Iodine is not excluded by this group because it is the starting point for the telomerisation process. 5. Substances with formula CnF2n +1-C(= O)OX' where n> 13 and X'=any group, including salts.The nomenclature X’ means any possible functional group.This exclusion is for substances that contain perfluoro groups having higher carbon numbers than those mentioned under paragraph 1 and are as such not covered by the restriction because only C9-C14 PFCAs have been identified as PBT or vPvB substances. Both linear and branched C9-C14 perfluorocarboxylic acids are included in the scope of restriction entry 68. Polyfluorinated (i.e. partially fluorinated) substances containing a structural element with a sufficiently long perfluorinated moiety are included within the scope of the restriction because they degrade to perfluorinated (fully fluorinated) C9-C14 PFCAs e.g. 8:2 FTOH: Polyfluorinated substances containing other partially fluorinated structural elements such as the substance below are not included within the scope of the restriction because they do not contain a structural element with a sufficiently long perfluorinated moiety (e.g., 2,2,3,3,4,4,5,6,6,7,7,8,8,9,9,9-hexadecafluorononyl methacrylate:It should be noted that if a substance contains structural elements both inside and out of scope, then the substance is still within the scope.More information is available in the Final background document accessible on the ECHA website in the Registry of restriction intentions until outcome section.