ℹ️ Document Conversion Notice: This document has been converted from PDF and formatted to fit this screen. Diagrams and images may be available only in the original here.

1725 Brannum Lane
Yellow Springs, Ohio
45387-1107 USA
+1 937-767-7241

Certificate of Analysis

Product Information

Product Category: ISE Reagent

Product Model Number: 2970 (10 mg/L Ammonium, 10 mg/L Potassium)

Lot Number: 25H100380

Method: Comparative ISE testing of Production reagent vs. Metrology reagent

Testing Results

Chemistry Tested	Determination	Tolerance	Result
Ammonium	(Average of Production) – (Average of Metrology)	≤ 0.2 mg/L (2%)	0.00
	Coefficient of Variation (CV) for Production reagent	≤ 5%	0.40
Potassium	(Average of Production) – (Average of Metrology)	≤ 0.3 mg/L (3%)	0.17
	Coefficient of Variation (CV) for Production reagent	≤ 5%	1.27

The procedures used to manufacture and test this product have been verified by QA for GMP compliance.

Technician: Amanda Fenner

Date: 8/22/2025

Google Docs
Google Drive
Download [pdf]

File Info : application/pdf, 1 Pages, 357.08KB

25H100380 Microsoft Word 2010 Microsoft Word 2010

Related Documents

	YSI ISE Reagent Certificate of Analysis - Model 2970, Lot 25G100146 Official Certificate of Analysis from YSI for the ISE Reagent, Model 2970. Details testing results for Ammonium and Potassium, lot number 25G100146, and GMP compliance verification.
	YSI Certificate of Analysis - ISE Reagent 2972 Official Certificate of Analysis from YSI for ISE Reagent, Model 2972, detailing test results for Ammonium and Coefficient of Variation, Lot Number 25H100067.
	YSI ISE Reagent Certificate of Analysis - Model 2971 Certificate of Analysis for YSI ISE Reagent, Model 2971, detailing testing results for Potassium and Ammonium, lot number 25G100266, verified for GMP compliance.
	YSI 7179 ISE Reagent Certificate of Analysis Certificate of Analysis for YSI Model 7179 ISE Reagent, detailing testing results for Ammonium and Potassium, lot number 25G100546, and GMP compliance verification.
	YSI ISE Reagent Certificate of Analysis - Model 7179 Certificate of Analysis for YSI ISE Reagent, Model 7179, detailing testing results for Ammonium and Potassium, including lot number 25H100068 and verification for GMP compliance.
	YSI ISE Reagent Certificate of Analysis - Model 7179 Official Certificate of Analysis from YSI for the ISE Reagent, Model 7179. Details testing results for Ammonium and Potassium, lot number 25G100019, and confirms GMP compliance.
	YSI ISE Reagent Certificate of Analysis - Model 2970 Certificate of Analysis for YSI ISE Reagent, Model 2970, detailing testing results for Ammonium and Potassium, lot number 25C100552, with verification for GMP compliance.
	YSI 7172-2972 Ammonium Calibrator Safety Data Sheet (SDS) Material Safety Data Sheet (MSDS) for the YSI 7172-2972 Ammonium Calibrator, providing detailed information on product identification, hazards, composition, first aid, handling, storage, exposure controls, physical properties, toxicology, ecology, disposal, transport, and regulatory information.