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WATER QUALITY TESTING
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Reand 1438
Qualitative pH test paper Brilliant yellow paper, pH: 6.7–7.9
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Reand 1420
Qualitative pH test paper Congo paper MN 260 HE, pH: 5.0–3.0
Reand 1312
Qualitative pH test paper Congo paper MN 616 T, pH: 5.0–3.0
Reand 1329
Qualitative pH test paper Congo paper MN 816 N, pH: 5.0–3.0
Reand 1231
Qualitative pH test paper Litmus paper blue, pH: 8.0–5.0
Reand 1280
Reand 1343
Qualitative pH test paper Litmus paper neutral, pH: 5.0–8.0
Reand 1368
Reand 1469
Qualitative pH test paper Litmus paper red, pH: 5.0–8.0
Reand 1406
Reand 1642
Qualitative pH test paper Nitrazine yellow paper, pH: 6.0–7.0
Reand 1527
Qualitative pH test paper Phenolphthalein paper, pH: 8.3–10.0