T/HBTL 002-2020 Active Group standards

T/HBTL 002-2020 Highway guardrail with thermosetting polyester powder coating

Publish Date: 2020-05-29 Implement Date: 2020-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/HBTL 002-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Highway engineering

ICS Name: Paints and varnishes

Publish Date: 2020-05-29

Implement Date: 2020-07-01

Scope

Scope: This standard specifies the technical requirements and experimental methods for thermosetting polyester powder coatings used in highway guardrails, as well as sample preparation, inspection rules, marking, packaging, storage, and transportation. This standard applies to thermosetting polyester powder coatings, which are mainly used in highway guardrails. Main technical content: The project includes the density in the container (g/cm3), gel time (180°C), min volatiles content (105°C, 1h), % sieve residue, particle size distribution (35μm~45μm), % fluidity, film appearance, pencil hardness, adhesion, impact resistance, gloss (60°)≤60, gloss (60°)＞60, bend test, gloss (60°)≤60, gloss (60°)＞60, cup impact, gloss (60°)≤60, gloss (60°)＞60, gloss (60°)≤60, gloss (60°)＞60, high gloss, flat gloss, matte gloss, alkali resistance (room temperature, 5% NaOH solution, 24h), acid resistance (room temperature, 3% HCL solution, 600h), salt spray resistance (1000h), humidity and heat resistance (500h), and resistance to artificial climate aging (continuous operation, with a wetting time of 18min, drying time of 102min, and a relative humidity of 40%~60% during drying, for 1000h).