Laboratory Education
Comparator Paper pH 4.0 - 8.0
Johnson Test Papers Comparator Paper pH 4.0 - 8.0, pH paper- for use in laboratory,and education Available as 10 books of 20 strips, 1 reel (5m x 7mm),and 200 strips per pack.
Johnson Test Papers Comparator Paper pH 4.0 - 8.0, pH paper- for use in laboratory,and education Available as 10 books of 20 strips, 1 reel (5m x 7mm),and 200 strips per pack.