NEW: Multi-Standard & NP-Standard

November 2018

Reference solutions for test kits.

To verify the accuracy of test kit and determine a correction factor to continue using the test.

NP-Standard: For checking nitrate and phosphate tests.

Multi-Standard: For checking calcium, magnesium, alkalinity and potassium tests.

Useable with all Tropic Marin® test kits, as well as all common tests.