物质或混合物的分类 - 指定的危险类别和类别，用 H 语句表示，例如易燃液体类别 2 (H225) 或皮肤致敏剂类别 1 (H317)。
Label elements — the signal word (only "Danger" or "Warning" exist in GHS), the applicable pictograms, the hazard statements (H-codes), and the precautionary statements (P-codes).
Other hazards that do not result in classification — for example, hazards not otherwise classified (HNOC) under US rules, or a "no additional information" placeholder used in many EU SDSs.
When a mixture is classified as hazardous, Section 2 must reproduce the label elements that will appear on the container. Check the signal word first: GHS recognizes only "Danger" and "Warning". Then check the pictograms: GHS defines nine pictograms in total, although the environmental pictogram is not required under US HazCom labelling rules while it is required under EU CLP. Every pictogram shown must correspond to a declared hazard class. Finally, check that every H-statement has a matching set of P-statements covering prevention, response, storage, and disposal. A Section 2 that declares H317 without P280, P302+P352, P333+P313, and P362+P364 is incomplete on its face.
其他危险和占位符文本
Not everything that matters is a classified hazard. OSHA requires the SDS to state other hazards that do not result in classification, and EU SDSs often record "no data available" or "none known" in this subsection. For flavors, the more useful entries are process notes such as "may form flammable vapour-air mixtures above the flash point". When the box is empty, read it as "the supplier did not evaluate this", not as "there are no other hazards".
风味 SDS 中常见的第 2 部分失败
通过仅报告主要溶剂分类而不是混合物分类来低估可燃性。
即使配方中肉桂醛、柠檬烯或丁子香酚含量高于相关阈值，也可忽略皮肤过敏。
列出没有相应 P 代码的 H 代码。
使用 GHS 或 CLP 中不存在的危险说明。
成分更改后复制先前配方的第 2 部分，在文档中留下过时的代码。
只要您知道要查找什么，每一个故障都可以在十分钟的文档审查中找到。
SDS 第 2 部分危害分类对电子烟油香料的解释
第 3 节 — 成分/成分信息
第 3 部分是 SDS 的成分声明。对于混合物，必须列出有助于混合物分类的每种危险成分的身份，及其 CAS 编号及其浓度或浓度范围。 OSHA 附录 D 要求提供所有危险成分的化学特性和适当的浓度数据； REACH 附件 II 第 3 节对超过适用浓度限值对健康或环境造成危害的成分也提出了同样的要求。第 3 节中的成分数据也是监管机构在 TPD 合规性检查期间验证的成分控制的支柱，因此这两份文件必须讲述相同的故事。对于浓缩香料，第 3 部分通常列出了主要溶剂（丙二醇、植物甘油、乙醇）、大容量芳香化学品以及任何高于分类阈值的敏化剂或有毒物质。低于阈值的成分可能会被省略，这就是为什么第 3 部分从来都不是完整的配方——它是与危险相关的声明，而不是配方披露。
第 3 部分中必须出现的内容
每种危险成分的化学名称和 CAS 编号。
每种列出成分的浓度或浓度范围。
本身有害并影响分类的杂质和稳定剂。
有关物质性质的相关注释，例如反应产物或副产物。
如何报告浓度
Exact percentages are preferred, but concentration ranges are explicitly permitted. In EU practice, ranges follow the bands recommended in REACH Annex II guidance, such as "25–50%" or "10–25%". In the US, OSHA permits ranges when the supplier makes a valid trade-secret claim, provided the range is narrow enough for a downstream user to complete their own assessments. Two warnings for buyers: first, a range is not a licence to hide a sensitizer — any ingredient contributing to classification must still be identified by name and CAS number. Second, when an SDS says only "proprietary flavor mixture" with no CAS numbers at all, you do not have a compliant Section 3 for the EU market.
商业秘密和替代化学名称
Trade secrecy is a real and lawful reason to withhold exact percentages, but it does not allow a supplier to hide a hazardous ingredient. Under OSHA, the identity of a hazardous ingredient may be withheld from the public SDS only if a valid trade-secret claim exists and the SDS still carries the required hazard information. Under CLP, a formulator can apply to ECHA for an alternative chemical name — a generic descriptor such as "fragrance mixture" or "reaction mass of terpenes" — that is valid for a limited, renewable period. The concentration data and the hazard classification must still be disclosed. If a flavor supplier refuses to provide any ingredient detail and cannot show a registered trade-secret claim, treat that as a compliance risk, not a legal shield.
根据您自己的记录验证第 3 节
香料采购中最重要的习惯是根据供应商技术数据表和分析证书交叉检查第 3 部分。 CAS 编号是可靠的关键：同一种芳香化学品以多种商品名出售，但其 CAS 登记号是唯一的。检查第 3 节中指定的每种危险成分是否出现在您的过敏原登记册、限用物质筛查中，以及（对于美国申请人）您的过敏原登记册中的成分声明中。 PMTA flavor master files。 SDS 和主文件不匹配是导致 FDA 完整性审核失败的最快方式。对于欧盟市场，第 3 节数据直接输入 CLP 第 45 条和附件 VIII 规定的毒物中心通知流程。通知中提交的成分必须与 SDS 浓度带相匹配；成员国指定的审查通知的机构通常会指出差异。如有疑问，请根据保密协议向您的供应商索取机密配方表，并自行核对。
SDS 第 3 部分电子烟油香料成分成分
第 2 节和第 3 节的十点审核清单
在为您的产品线批准新口味之前，请在每个 SDS 上使用此清单：
Confirm the SDS follows the 16-section GHS order and that the Section 2 and Section 3 headings match the GHS titles: "Hazard(s) identification" and "Composition/information on ingredients".
阅读第 2 节分类并写出每个 H 代码。
验证每个 H 代码是否映射到您的市场法规（美国的 OSHA HazCom，欧盟的 CLP）中存在的危险类别和类别。
Section 2, "Hazard(s) identification", contains the classification of the substance or mixture, the label elements (signal word, pictograms, hazard statements H-codes, precautionary statements P-codes), and other hazards that do not result in classification.
SDS 第 3 部分包含什么内容？
Section 3, "Composition/information on ingredients", lists the chemical identity, CAS number, and concentration or concentration range of each hazardous ingredient in a mixture, plus hazardous impurities and stabilisers that affect classification.
[1] Health and Safety Executive for Northern Ireland (HSENI), "REACH Safety Data Sheets". https://www.hseni.gov.uk/reach-safety-data-sheets[2] US Occupational Safety and Health Administration (OSHA), "Hazard Communication Standard: Safety Data Sheets". https://www.osha.gov/hazcom/safety-data-sheets[3] University of North Carolina at Chapel Hill, Environment Health and Safety, "Safety Data Sheets". https://ehs.unc.edu/topic/safety-data-sheets/[4] UC San Diego, "Understanding Safety Data Sheets". https://blink.ucsd.edu/safety/resources/SDS/explained.html
