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  • 标题:Detergent Considerations for Consumers: Laundering in Hard Water—How Much Extra Detergent Is Required?
  • 作者:Bruce A. Cameron
  • 期刊名称:Journal of Extension
  • 印刷版ISSN:0022-0140
  • 电子版ISSN:1077-5315
  • 出版年度:2011
  • 卷号:49
  • 期号:4
  • 出版社:Journal of Extension, Inc.
  • 摘要:Laundering is a complex process, and detergents have changed considerably over the last 20 years. The research reported will be of benefit to both Extension educators and teachers in advising people with whom they work on choices between different types of laundry detergents when it comes to laundering. Liquid detergents washed equally well in both soft and hard water. Powdered detergents were better than liquids in soft water. Water hardness affected powdered detergents, and, depending on the detergent type, 10-15% to > 30% extra detergent was needed to obtain a result similar to that of soft water.
  • 关键词:laundering ; water hardness ; detergents
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