GUIDE TO INSPECTIONS VALIDATION OF CLEANING PROCESSES(FDA)
When the cleaning process is used only between batches of the same product (or different lots of the same intermediate in a bulk process) the firm need only meet a criteria of, "visibly clean" for the equipment. Such between batch cleaning processes do not require validation.
FDA的清洗验证指南中明确规定:当清洗工艺是用于相同产品不同批次之间清洗时(或原料药生产过程中相同中间体不同批次之间),公司只需要达到设备“目测”清洁的标准。这种批间清洁不需要验证。