Testing method for colour fastness to alkali spotting 耐碱斑污色牢度的试验方法
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Testing method for colour fastness to water spotting 耐水斑污色牢度的试验方法
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Testing method for colour fastness to acid spotting 耐酸斑污色牢度的试验方法
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Dual - action toothpaste with xylitol and baking soda to remove stains and surface discolouration from teeth . leaves teeth sparkling white and mouth minty fresh . suitable even for sensitive teeth 这种双重作用的牙膏，含有木糖醇和小苏打，能清除牙齿表层的污垢和污色。用后，牙齿显得更洁白亮丽，而且满口清香。敏感性的牙齿亦适用。
