YZ/Z 0054.1-2005
Confidential Packaging Products Part 1: Confidential Envelopes (English Version)

Standard No.

YZ/Z 0054.1-2005

Language

Chinese, Available in English version

Release Date

2005

Published By

Professional Standard - Postal Service

Latest

YZ/Z 0054.1-2005

Scope

This part specifies the varieties, specifications, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of confidential envelopes (including seals). This section applies to the production and inspection of confidential envelopes.

YZ/Z 0054.1-2005 Referenced Document

• GB/T 451.2 Paper and paperboard Part 2: Quantitative determination*， 2023-12-28 Update
• GB/T 451.3 Paper and board determination of thickness
• GB/T 453 Paper and board determination of tensile properties-constant rate of loading methods
• GB/T 456 Paper and board determination of smoothness (Bekk method)
• GB/T 457 Paper and board.Determination of folding endurance*， 2008-08-19 Update

YZ/Z 0054.1-2005 history

• 2005 YZ/Z 0054.1-2005 Confidential Packaging Products Part 1: Confidential Envelopes