Envelopes
1 Scope
This standard specifies terms and definitions, specifications and sizes, technical requirements, test methods, inspection rules, packaging, labeling and storage for envelopes.
This standard applies to envelopes for domestic and international postal communications.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the document referred to applies.
GB/T 2828.1 Sampling procedures for inspection by attributes—Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2829 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
QB/T2234 Envelope paper
YD/T775 Test methods for envelopes
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
domestic envelopes
correspondence envelope for domestic delivery
3.2
international envelopes
correspondence envelope for delivery to other countries or regions
3.3
sealing flap
part of an envelope which is to be used to close it
3.4
folded root-edge
expandable part folded on the three sides, other than the closing side, of an envelope
4 Types and specifications
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Types and specifications
5 Technical requirements
6 Test methods
7 Inspection rules
8 Packaging, labeling and storage
