GroLine 1413 uS/cm (1.41 mS/cm) solution, 20 mL (Single Sachet)

HI70031G is a high quality 1413 uS/cm conductivity standard designed with hydroponics, aquaponics, and greenhouses in mind. Single-use sachets are highly portable, with a small footprint and a lightweight design. They are the perfect accessory for your on-the-go testing, fitting easily into your pocket or carrying case. Supplied with Certificate of Analysis Single-use sachets for convenience. Perfect for use with GroLine testers and portable meters! HI70031G is a premium quality 1413 µS/cm conductivity solution standardized with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM (Standard Reference Material) in deionized water for analytical use in accordance with ISO 3696/BS3978. Additional equipment used in preparation of the solutions include certified weight-checked balances, Class A glassware and certified thermometers. Each sealed sachet holds just the right amount of solution making every sachet as fresh as the day it was packaged! Solution does not contain any dyes that may stain the reference cell of a pH electrode.