德記儀器 Whatman 定性濾紙 6 款（Grade NO.1-6），孔徑 2.5~25μm、厚度 0.18~0.39mm 規格齊全。涵蓋通用過濾、精密粒徑保留、快速流速等級，適用化學實驗室定性分析、氣體監測、水質採樣檢驗。
Whatman ™/cytiva 定性濾紙 Grade NO.1
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Whatman ™/cytiva 定性濾紙 Grade NO.2
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Whatman ™/cytiva 定性濾紙 Grade NO.3
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Whatman ™/cytiva 定性濾紙 Grade NO.4
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Whatman ™/cytiva 定性濾紙 Grade NO.5
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Whatman ™/cytiva 定性濾紙 Grade NO.6
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