This Document describes a method for measuring the contact angle between water and the surface of paper and board using an optical technique. This Document is applicable to most types of paper and board. This Document is not applicable to paper and board that are highly absorbent or have uneven surfaces.
Basic Data
Standard ID
GB/Z 166-2026 (GB/Z166-2026)
Description (Translated English)
Paper and board - Measurement of water contact angle by optical methods
Sector / Industry
National Standard
Classification of Chinese Standard
Y30
Classification of International Standard
85.060
Word Count Estimation
14,156
Date of Issue
2026-02-27
Date of Implementation
2026-02-27
Issuing agency(ies)
State Administration for Market Regulation, Standardization Administration of China
