Unverified85% confidenceDecision RuleTime unknown
需在规定温度范围内密封储存,过期或受潮后准确性下降明显;购买前应确认生产日期和保质期,家庭备用不宜大量囤货
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85%
Confidence
Long-term
Relevance
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Unverified有明确的保质期限制,过期后螯合活性下降需更换;采购前应确认生产日期,库存量不宜囤积过多79% similarUnverified购买时需注意生产日期而非仅看包装完整性,存储温度越高保质期衰减越快,长期存放在高温环境下实际可食用年限远低于标称5年79% similarUnverified有明确保质期(通常印在筒身),过期后可靠性显著下降,购买时需确认生产日期并定期更换78% similarUnverified购买前须确认试纸有效期和存储条件要求,试纸对温湿度敏感,过期或存放不当会导致结果不可靠78% similarUnverified保质期较短(冷藏保存,通常数天),购买时需确认生产日期,不适合囤货78% similar
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