1. Minguo baozhi suandu tiao cha yu fenxi.
- Author
-
Shao Jinyao and Feng Qing
- Subjects
NEWSPAPERS ,CHINESE history, 1912-1928 ,HISTORIC preservation ,NEWSPRINT ,PRESERVATION of paper - Abstract
This article presents results of testing the acidity of newspapers published in China during the Republican period. Acidity is an important factor in the lifecycle of newsprints. Until now, there has been no comprehensive and quantitative knowledge of their acidity, which is key to their conservation. The article presents information of different types of papers, testing samples, and testing methodologies. Findings from tests conducted on two newspapers -- "Ta Gong Bao" and "Zhongyang Ribao" (Central Daily News) -- from 1929 to 1949 show that they have low PH levels. Due to their brittleness and tendency to yellow, newspapers from the Republican period are in need of protection and rescue.
- Published
- 2009