1.1 此测试方法 ( 1. 3. ) 2. 适用于成品饮用水、处理中间阶段的饮用水和原水中以下分析物的测定: 分析物 化学文摘服务 注册表编号 A. 甲草胺 5972-60-8 奥尔德林 309-00-2 氯丹 57-74-9 Dieldrin 60-57-1 Endrin 72-20-8 七色 76-44-8 环氧七氯 1024-57-3 六氯苯 118-74-1 林丹 58-89-9 甲氧基氯 72-43-5 毒杀芬 8001-35-2 阿罗克乐 B 1016 12674-11-2 阿罗克乐 B 1221 11104-28-2 阿罗克乐 B 1232 11141-16-5 阿罗克乐 B 1242 53469-21-9 阿罗克乐 B 1248 12672-29-6 阿罗克乐 B 1254 11097-69-1 阿罗克乐 B 1260 11096-82-5 1.2 大多数测试方法分析物的检测限小于1μg/L。实际检测限高度取决于样品基质和气相色谱系统的特性。 表1 包含精度和偏差声明的适用浓度范围。只有Aroclor 1016和1254被包括在用于推导精度和偏差声明的实验室间测试中。其他PCB产品的数据可能相似。 1.3 氯丹、毒杀芬和Aroclor产品（多氯联苯）是多组分材料。精密度和偏差说明反映了这些材料在水样中的回收率。精确度和偏差声明可能不适用于环境改变的材料或含有多氯联苯和有机氯农药复杂混合物的样品。 1.4 对于中列出的化合物以外的化合物 1.1 或者对于其他样品来源，分析员必须通过收集加标样品（地下水、自来水）的精度和偏差数据来证明该测试方法的适用性 ( 4. ) 并通过气相色谱/质谱法（GC/MS）对结果进行定性确认 ( 5. ) 或者通过使用不同柱的GC分析。 1.5 本试验方法仅限于在GC使用和气相色谱图解释方面有经验的分析员使用或在其监督下使用。每个分析员必须证明有能力使用第节中描述的程序生成可接受的结果 13 . 1.6 未经色谱分离的分析物（保留时间非常相似的分析物）不能在同一校准混合物或水样中单独识别和测量，除非存在识别和定量的替代技术（见 13.4 ). 1.7 当使用此测试方法分析不熟悉的样品中列出的任何或所有分析物时 1.1 ，分析物的鉴定和浓度应至少通过一种附加技术进行确认。 1.8 以国际单位制表示的数值应视为标准。括号中给出的值是对英寸磅单位的数学转换，仅供参考，不被视为标准。 1.9 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关具体的危险说明，请参阅第节 9 . 1.10 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 有机氯杀虫剂和多氯联苯的广泛使用导致它们在环境的各个方面都存在。这些化合物具有持久性，可能对环境产生不利影响。因此，有必要对水样中的这些化合物进行鉴定和定量。

1.1 This test method ( 1- 3 ) 2 is applicable to the determination of the following analytes in finished drinking water, drinking water during intermediate stages of treatment, and the raw source water: Analyte Chemical Abstract Service Registry Number A Alachlor 5972-60-8 Aldrin 309-00-2 Chlordane 57-74-9 Dieldrin 60-57-1 Endrin 72-20-8 Heptachlor 76-44-8 Heptachlor Epoxide 1024-57-3 Hexachlorobenzene 118-74-1 Lindane 58-89-9 Methoxychlor 72-43-5 Toxaphene 8001-35-2 Aroclor B 1016 12674-11-2 Aroclor B 1221 11104-28-2 Aroclor B 1232 11141-16-5 Aroclor B 1242 53469-21-9 Aroclor B 1248 12672-29-6 Aroclor B 1254 11097-69-1 Aroclor B 1260 11096-82-5 1.2 Detection limits for most test method analytes are less than 1 μg/L. Actual detection limits are highly dependent on the characteristics of the sample matrix and the gas chromatography system. Table 1 contains the applicable concentration range for the precision and bias statements. Only Aroclor 1016 and 1254 were included in the interlaboratory test used to derive the precision and bias statements. Data for other PCB products are likely to be similar. 1.3 Chlordane, toxaphene, and Aroclor products (polychlorinated biphenyls) are multicomponent materials. Precision and bias statements reflect recovery of these materials dosed into water samples. The precision and bias statements may not apply to environmentally altered materials or to samples containing complex mixtures of polychlorinated biphenyls (PCBs) and organochlorine pesticides. 1.4 For compounds other than those listed in 1.1 or for other sample sources, the analyst must demonstrate the applicability of this test method by collecting precision and bias data on spiked samples (groundwater, tap water) ( 4 ) and provide qualitative confirmation of results by gas chromatography/mass spectrometry (GC/MS) ( 5 ) or by GC analysis using dissimilar columns. 1.5 This test method is restricted to use by or under the supervision of analysts experienced in the use of GC and in the interpretation of gas chromatograms. Each analyst must demonstrate the ability to generate acceptable results using the procedure described in Section 13 . 1.6 Analytes that are not separated chromatographically, (analytes that have very similar retention times) cannot be individually identified and measured in the same calibration mixture or water sample unless an alternative technique for identification and quantitation exists (see 13.4 ). 1.7 When this test method is used to analyze unfamiliar samples for any or all of the analytes listed in 1.1 , analyte identifications and concentrations should be confirmed by at least one additional technique. 1.8 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. 1.9 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9 . 1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The extensive and widespread use of organochlorine pesticides and PCBs has resulted in their presence in all parts of the environment. These compounds are persistent and may have adverse effects on the environment. Thus, there is a need to identify and quantitate these compounds in water samples.