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听众
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发表于 2014-1-28 09:23:31
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After all the equipment and piping has been verified as installed correctly and working as specified, the initial phase of the water system validation can begin. During this phase the operational parameters and the cleaning/ sanitization procedures and frequencies will be developed. Sampling should be daily after each step in the purification process and at each point of use for two to four weeks. The sampling procedure for point of use sampling should reflect how the water is to be drawn e.g. if a hose is usually attached the sample should be taken at the end of the hose. If the SOP calls for the line to be flushed before use of the water from that point, then the sample is taken after the flush. At the end of the two to four week time period the firm should have developed its SOPs for operation of the water system.
当所有的设备和管道均正确安装并通过检验可按照说明进行工作后,可开始第一阶段的水系统验证。这个阶段主要开发操作参数和清洁/消毒程序与频率。应在2-4周内,每天在每个纯化工艺步骤后对各使用点进行取样。取样的程序应能够反映出取水的方法。例如,是否通常附一根软管,在软管终端取样。如果SOP要求在该点使用水之前对管道进行冲洗,那么应在冲洗后取样。企业应在2-4周后开发出水系统的标准操作规程。
The second phase of the system validation is to demonstrate that the system will consistently produce the desired water quality when operated in conformance with the SOPs. The sampling is performed as in the initial phase and for the same time period. At the end of this phase the data should demonstrate that the system will consistently produce the desired quality of water.
系统验证的第二个阶段主要是证明,只要按照SOP来操作系统,便能够连续制备出预期的水质量。这一阶段的取样程序和周期与第一阶段相同。在第二阶段结束时,所获得的数据应证实该系统能够连续制备出预期的水质量。
The third phase of validation is designed to demonstrate that when the water system is operated in accordance with the SOPs over a long period of time it will consistently produce water of the desired quality. Any variations in the quality of the feedwater that could affect the operation and ultimately the water quality will be picked up during this phase of the validation. Sampling is performed according to routine procedures and frequencies. For Water for Injection systems the samples should be taken daily from a minimum of one point of use, with all points of use tested weekly. The validation of the water system is completed when the firm has a full years worth of data.
验证的第三个阶段主要是证明,按照SOP来操作水系统,经过很长时间后,仍然能够连续制备出预期的水质量。在验证期间,如果给水质量发生变化,影响操作和水的质量,都要进行替换。主要根据日常的程序和频率进行取样。对于注射用水系统,每天应至少从一个使用点取样,并且每周对所有的使用点进行检验。当企业获取相当一整年的数据后,该阶段的验证使告完成。
While the above validation scheme is not the only way a system can be validated, it contains the necessary elements for validation of a water system. First, there must be data to support the SOPs. Second, there must be data demonstrating that the SOPs are valid and that the system is capable of consistently producing water that meets the desired specifications. Finally, there must be data to demonstrate that seasonal variations in the feedwater do not adversely affect the operation of the system or the water quality.
虽然上述的验证方案并非唯一的系统验证方法,但它包含水系统验证的几个必要因素。首先,必须有数据来支持SOP。其次,必须有数据证明SOP有效且该系统能够始终制备出符合规定指标的水。最后,必须有数据证明给水的周期性变化不会对系统的操作或水质量造成不良影响。
The last part of the validation is the compilation of the data, with any conclusions into the final report. The final validation report must be signed by the appropriate people responsible for operation and quality assurance of the water system.
汇编数据,并将结论归入最终的报告是验证的最后部分。最终的验证报告必须由负责水系统的操作和质量保证的人员签字。
这就是水系统验证三个阶段的来源,FDA的高纯水系统检查指南!里面写的,很清楚为什么要做三个阶段了! |
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