pH indicator paper
Wide range papers
01: Universal indicator paper (pH 1-4)
02: Universal indicator paper (pH 1-10)
03: Universal indicator paper (pH 1-11)
04: Universal indicator paper (pH 1-14)
05: Universal indicator paper (pH 9-14)
06: Universal indicator paper (pH 4-10)
07: Universal indicator paper (pH 0-6)

Short range papers
08: Special indicator paper (pH 3.8-5.4)
09: Special indicator paper (pH 5.5-9.0)
10: Special indicator paper (pH 0.5-5.0)
11: Phenolphthalein paper
12: Litmus paper neutral
13: Congo red paper
14: Lead acetate paper
15: Potassium iodide starch paper