Laboratory Education
Comparator Paper pH 6.8 - 8.3
Johnson Test Papers Comparator Paper pH 6.8 - 8.3, 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 6.8 - 8.3, 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.