Litmus Test Papers LITMUS BLUE , BLUE (BOOKLET)

Determine pH easily and inexpensively without instrumentation

• Color changes instantaneously, simply compare to chart for determination
• Available in two convenient formats — a booklet of 20 strips, 7 x 70 mm; or a single 9-mm wide roll in a convenient dispenser
• Packaged as 10 booklets of 20 strips each; strips measure 7 x 70 mm