1 Subject Content and Applicable Scope
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of metal ceiling.
This standard is applicable to the metal ceiling for building decoration to be used in conjunction with light-gage steel joist.
2 Normative References
GB 1720 Test Method for Adhesion of Paint Films
GB 1732 Test Method for Impact Resistance of Film
GB 1764 Test Method for Paint Film Thickness
GB 1958 Rules for Inspection of Form and Position Tolerances
GB 2828 Sampling Procedures and Tables for Lot-by-lot Inspection by Attributes
GB 2829 Sampling Procedures and Tables for Periodic Inspection by Attributes
GB 5928 Test Method for the Thickness of Metal Coating and Alumite of Flight Industrial Products: Gravimetric Methods
GB 5938 Test Method for the Corrosion of Metal Coating and Conversion Coating of Light Industrial Products: Neutral Salt Spraying Test (NSS)
GB 5944 Evaluation of the Corrosion Test Results of the Metal Deposits for the Light Industrial Products
3 Product Classification
3.1 Types
3.1.1 Classification by shape