HG/T 3953-2007 Rubber roller for wood-working machinery

GB/T 1681-1991 Rubber—Determination of rebound resilience of vulcanizates GB/T 1689-1998 Rubber vulcanized—Determination of abrasion resistance(Akron machine) GB/T 1690-1992 Rubber, vulcanized-Determination of the effect of liquids GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 3512-2001 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method 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 9239.1-2006 Mechanical vibration—Balance quality requirements for rotors in a constant(rigid)state—Part 1:Specification and verification of balance tolerances GB/T 9239.2-2006 Mechanical vibration—Balance quality requirements for rotors in a constant(rigid) state—Part 2:Balance errors GB/T 9239.12-2021 Mechanical vibration—Rotor balancing—Part 12:Procedures and tolerances for rotors with flexible behaviour GB/T 9239.13-2023 Mechanical vibration—Rotor balancing—Part 13:Criteria and safeguards for the in-situ balancing of medium and large rotors GB/T 9239.14-2017 Mechanical vibration—Rotor balancing—Part 14:Procedures for assessing balance errors GB/T 9239.21-2019 Mechanical vibration—Rotor balancing—Part 21:Description and evaluation of balancing machines GB/T 9239.23-2022 Mechanical vibration—Rotor balancing—Part 23:Enclosures and other protective measures for the measuring station of balancing machines GB/T 9239.31-2023 Mechanical vibration—Rotor balancing—Part 31:Susceptibility and sensitivity of machines to unbalance GB/T 9239.32-2017 Mechanical vibration—Rotor balancing—Part 32:Shaft and fitment key convention HG/T 2413.2-1992 The determination of apparent hardness of rubber roll using Shore hardness tester HG/T 2450-1999 Rubber-covered rollers-Determination of apparent hardness:IRHD method HG/T 3078-2001 HG/T 3078-2001 Rubber and plastic roll surface characteristics HG/T 3079-1999 The tolerance of the dimensions for rubber and plastic rollers GB 50325-2001 Code for indoor environmental pollution control of civil building engineering GB 50325-2010 Code for indoor environmental pollution control of civil building engineering GB 50325-2020 Standard for indoor environmental pollution control of civil building engineering GB/T 9239.2-2025 Mechanical vibration—Rotor balancing—Part 2:Vocabulary GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 9239.11-2025 Mechanical vibration—Rotor balancing—Part 11:Procedures and tolerances for rotors with rigid behaviour