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Hartii indicatoare de pH fara scala de culori
Pentru orientare si ajustarea valorilor de pH
Aceste hartii reprezinta indicatoari simpli, hartii complet impregnate, care nu permit o citire exacta a pH-ului si ajustari ale acestuia in timpul peroceselor chimice. Din acest motiv, scala colorimetrica nu este inclusa.
Hartie indicatoare de pH
| Denumire | Gradatie (unitati pH) | REF |
| Brilliant yellow paper | 6.7 - 7.9 | 90701 |
| Congo paper MN 260 HE | 5.0 - 3.0 | 90705 |
| Congo paper MN 616 T | 5.0 - 3.0 | 90704 |
| Congo paper MN 616 N | 5.0 - 3.0 | 90702 |
| Litmus paper, blue | 8.0 - 5.0 |
91106 (rola de 5 m) 91126 (booklet of 100 strips) |
| Litmus paper, neutral | 5.0 - 8.0 |
91107 (roll of 5 m) 91127 (booklet of 100 strips) |
| Litmus paper, red | 5.0 - 8.0 |
91108 (roll of 5 m) 91128 (booklet of 100 strips) |
| Nitrazine yellow paper | 6.0 - 7.0 | 90711 |
| Phenolphthalein paper | 8.3 - 10.0 | 90712 |
