Szs_2_1_5 Here

The code "SZS_2_1_5" refers to a Swiss standard (often associated with SNV or historical SZS guidelines) for technical drawing paper, detailing requirements for grammage, surface finish, and transparency. This standard is primarily used in engineering for document durability rather than in academic literature. To obtain the official specification, the document can be purchased through the Swiss Association for Standardization (SNV) shop.