GB/T 28159-2025: Electronic grade phosphoric acid

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Scope

This document specifies the requirements, inspection rules, marking, packaging,
transportation, storage, and safety of electronic-grade phosphoric acid, and describes
the corresponding test methods.
This document applies to electronic-grade phosphoric acid used in the semiconductor
integrated circuit, chip, and display panel industries.

Basic Data

Standard ID	GB/T 28159-2025 (GB/T28159-2025)
Description (Translated English)	Electronic grade phosphoric acid
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	L90
Classification of International Standard	31.030
Word Count Estimation	14,135
Date of Issue	2025-08-29
Date of Implementation	2026-03-01
Older Standard (superseded by this standard)	GB/T 28159-2011
Issuing agency(ies)	State Administration for Market Regulation; Standardization Administration of China