GB/T 18241.2-2000
Active
GB/T 21539-2008
Active
National standards
GB/T 21539-2008 Cement-purpose PU piston
GB/T 21539-2008 Cement-purpose PU piston
Basic Information
Standard Code:
GB/T 21539-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Other rubber products
ICS Name:
Other rubber and plastic products
Publish Date:
2008-04-07
Implement Date:
2008-10-01
Pages:
5 pages
Scope
This standard specifies the requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for polyurethane pistons used in concrete pumps (hereinafter referred to as pistons). This standard applies to polyurethane pistons used in all types of concrete delivery pump trucks.
Development Information
Referenced Standards
GB/T 528-1998 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties
GB/T 529-1999 Rubber,vulcanized or thermoplastic—Determination of tear strength (Trouser,angle and crescent test pieces)
GB/T 531-1999 Rubber—Determination of indentation hardness by means of pocket hardness meters
GB/T 1689-1998 Rubber vulcanized—Determination of abrasion resistance(Akron machine)
GB/T 3672.1-2002 Rubber—Tolerances of products—Part 1:Dimensional tolerances
GB/T 5721-1993 General rules of identification, packaging, transportation and storage for rubber sealing products
GB/T 3672.1-2025 Tolerances for rubber products—Part 1:Dimensional tolerances
Related Standards
GB/T 18241.3-2000
Replaced
GB/T 18241.3-2000 Rubber Iining—Part 3-Lining for floatation machine
GB 18241.1-2001
Replaced
GB 18241.1-2001 Rubber lining—Part 1 Anticorrosion lining for equipment
GB/T 20029-2005
Active
GB/T 20029-2005 Rubber isolation bearings for instruments and equipments
GB/T 18241.4-2006
Active
GB/T 18241.4-2006 Rubber lining—Part 4:Anticorrosion lining for flue gas desulfurization
GB 18173.1-2006
Replaced