YSI Solution Expiration Dates User guide

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YSI, a Xylem brand

1725 Brannum Lane

Yellow Springs, OH 45387

+1.937.767.7241

YSI.com

Solution Expiration Dates

A GUIDE FOR ENVIRONMENTAL PROFESSIONALS

Calibration Solutions Guide

YSI, a Xylem brand

•

W32-01

NOTE: Expiration dates are clearly labeled on the bottle. Expiration times

for unopened / unmixed solutions are from date of manufacture, not date

of purchase. TruLine solutions are for the TruLine laboratory ISEs.

CONDUCTIVITY

Unopened - Glass Quarts 1 Year

Unopened - Plastic Pints 18 Months

Opened 1 Month

TruLine ISE CALIBRATION,

ISA & FILLING SOLUTIONS

Unopened 15 Months

Opened 6 Months

TURBIDITY

Unopened 1 Year

Opened 6 Months

AMMONIUM

Unopened 18 Months

Opened 6 Months

NITRATE

Unopened 1 Year

Opened 6 Months

PROBE ELECTROLYTE SOLUTION

Unmixed Crystals No Stated Date

Mixed Solution 1 Year

ZOBELL

Unmixed 5 Years

Mixed 6 Months

Unopened 2 Years

Opened 2 Months

CONFIDENCE SOLUTION

Unopened 2 Years

Opened 3 Months