Standard No.:	GB/T 18840-2002
English Name:	Padding for bituminous waterproof sheets
Chinese Name:	沥青防水卷材用胎基
Chinese Classification:	Q17    Roof and pavement waterproof and barrier material
Professional Classification:	GB    National Standard
ICS Classification:	91.060.30 91.060.30    Ceilings. Floors. Stairs 91.060.30
Issued by:	AQSIQ
Issued on:	2002-9-11
Implemented on:	2003-4-1
Status:	abolished
Superseded by:	GB/T 18840-2018 Padding for bituminous waterproof sheets
Superseded on:	2019-11-1
Abolished on:	2019-11-01
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	120.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the classification, specifications, technical requirements, test methods, inspection rules, marking, storage and transportation, etc. of padding for bituminous waterproof sheets. This standard is applicable to polyester felt, fiberglass felt, polyethylene film, fiberglass felt enhanced with fiberglass mesh, composite felt of polyester felt and fiberglass mesh, composite felt of polyester cotton non-woven fabric and fiberglass mesh which are served as padding for bituminous waterproof sheets. 2 Normative References The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. At time of publication, the editions indicated were valid. All the standards will be revised, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of the following standards are applicable. GB/T 529-1999 Rubber, Vulcanized or Thermoplastic-Determination of Tear Strength (eqv ISO 34-1: 1994) GB/T 9914-1988 Textile Glass - Determination of Combustible Matter Content GB 18242-2000 Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials GB/T 17470-1998 Glass Fiber Chopped Strand Mat JC 561-1994 Fiberglass Mesh 3 Definitions

Foreword 1 Scope 2 Normative References 3 Definitions 4 Classification 5 Technical Requirements 6 Test Methods 7 Inspection Rules 8 Marking, Packaging, Transportation and Storage