Standard No.:	GB/T 2918-2018
English Name:	Plastics--Standard atmospheres for conditioning and testing
Chinese Name:	塑料 试样状态调节和试验的标准环境
Chinese Classification:	G31    Basic standards and general methods for synthetic resin and plastic
Professional Classification:	GB    National Standard
ICS Classification:	83.080.01 83.080.01    Plastics in general 83.080.01
Issued by:	SAMR and SAC
Issued on:	2018-12-28
Implemented on:	2019-11-1
Status:	valid
Superseding:	GB/T 2918-1998 Plastics--Standard atmospheres for conditioning and testing
Language:	English
File Format:	PDF
Word Count:	5500 words
Price(USD):	164.0
Delivery:	via email in 1 business day

Plastics - Standard atmospheres for conditioning and testing 1 Scope This standard specifies the specifications relating to the conditioning and testing of all plastics and all types of specimen at constant atmospheric conditions. This standard is applicable to all plastics and all types of specimen. Special atmospheres applicable to a particular test or material or simulating a particular atmosphere are not included in this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 1034 Plastics - Determination of water absorption (GB/T 1034-2008, ISO 62:2008, IDT) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply.

Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Standard atmosphere 6 Classes of standard atmosphere 7 Standard temperature and ambient temperature 8 Procedures