QB/T 4878-2015 English PDF (QBT4878-2015)

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QB/T 4878-2015: Expanded polypropylene for moulding
QB/T 4878-2015
LIGHT INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 83.100
Classification number: G32
Record number: 52176-2015
Expanded polypropylene for moulding
模塑聚丙烯泡沫塑料(PP-E)
ISSUED ON: OCTOBER 10, 2015
IMPLEMENTED ON: MARCH 01, 2016
Issued by: Ministry of Industry and Information Technology of the PRC
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Classification and marking ... 5 
4 Requirements ... 5 
5 Test methods ... 6 
Expanded polypropylene for moulding
1 Scope
This Standard specifies the classification and marking, requirements, test
methods, inspection rules and signs, packaging, transportation, and storage of
expanded polypropylene for moulding.
This Standard applies to expanded polypropylene moulded from foamed
polypropylene beads.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 1410-2006 Methods of test for volume resistivity and surface resistivity
of solid electrical insulating materials
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and
testing
GB/T 6343-2009 Cellular plastics and rubbers - Determination of apparent
density
GB/T 6344-2008 Flexible cellular polymeric materials - Determination of
tensile strength and elongation at break
GB/T 8811-2008 Test method for dimensional stability of rigid cellular plastics
GB/T 8813-2008 Rigid cellular plastics - Determination of compression
properties
GB/T 10294-2008 Thermal insulation - Determination of steady-state thermal
resistance and related properties - Guarded hot plate apparatus
GB/T 10295-2008 Thermal insulation - Determination of steady-state thermal
resistance and related properties - Heat flow meter apparatus
QB/T 2669-2004 Test method for water absorption of cellular plastics