 |
| Spanish | English |
| papel sin ácido | alkaline paper |
| papel sin ácido | permanent paper |
| papel sin ácido | acid-free paper (Paper with a low or zero level of acid. This does not imply that paper is alkaline-buffered) |
|
| Spanish | English |
| papel sin ácido | alkaline paper |
| papel sin ácido | permanent paper |
| papel sin ácido | acid-free paper (Paper with a low or zero level of acid. This does not imply that paper is alkaline-buffered) |