Unverified78% confidenceDecision RuleTime unknown

验证真实防晒效果可查看吊牌是否标注'AATCC 183'或'GB/T 18830'检测标准并明确UPF数值，仅写'防紫外线'无认证的宣传参考价值低

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Unverified宣称UPF值的防晒帽应有GB/T 18830或AATCC 183检测标准依据，无任何检测标识、仅笼统标注防晒的产品防护力不可靠85% similar Unverified国标GB/T 18830要求UPF>40且UVA<5%才能标注'防紫外线'，购买时查看吊牌是否明确标注该标准编号，无标准编号的'防晒'宣传可能是营销话术81% similar Unverified国标GB/T 18830-2009规定只有UPF>40且UVA透过率<5%的产品才能标注'防紫外线产品'字样，购买时可要求查看该检测报告78% similar

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