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WATER QUALITY TESTING
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Reand 1132
pH test paper Tritest pH 1–11, with three indicator zones
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Reand 1116
pH test paper Tritest L pH 1–11, three indicator zones and hydrophobic barriers
Reand 1077
pH test paper Duotest pH 1–12, with two indicator zones
Reand 1180
pH test paper Duotest pH 1.0–4.3, with two indicator zones
Reand 1055
pH test paper Duotest pH 3.5–6.8, with two indicator zones
pH test paper Duotest pH 5.0–8.0, with two indicator zones
Reand 1149
pH test paper Duotest pH 7.0–10.0, with two indicator zones
Reand 1111
pH test paper Duotest pH 9.5–14.0, with two indicator zones
Reand 1157
Colorimetric reagents UNISOL 410 for pH 4−10
Reand 1043
Colorimetric reagents UNISOL 113 for pH 1‑13
Reand 996
Qualitative pH test paper Brilliant yellow paper, pH: 6.7–7.9
Reand 970
Qualitative pH test paper Congo paper MN 260 HE, pH: 5.0–3.0