T/TISA 005-2024 Active Group standards

T/TISA 005-2024 Elevator with colored coating steel belt

Publish Date: 2024-12-30 Implement Date: 2025-04-01 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/TISA 005-2024

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Flat steel and semi-finished products

Publish Date: 2024-12-30

Implement Date: 2025-04-01

Scope

Main technical contents: 1. Coating color difference: This section stipulates that the E value of the coating color difference with the standard color plate should not exceed 0.5. The standard color plate should be confirmed by both the supplier and the buyer when placing an order. The national standard GB/T12754 requires that the E value of the coating color difference with the standard color plate should not exceed 1.5. By comparison, the color difference control range specified in this standard is stricter than the requirements of GB/T12754 for color difference. This is to further control the color difference range to meet the production and processing requirements of color-coated steel strips for elevators. 2. Back coating performance: This section stipulates that the back coating should be one layer with a thickness of not less than 7 μm. The national standard GB/T12754 requires that when the back coating is one layer, its thickness should not be less than 5 μm. By comparison, the control range specified in this standard for the back coating is more stringent than the requirements of GB/T12754 for the back coating. The thickening of the back coating is to better meet the corrosion resistance requirements of the back coating of color-coated steel strips for elevators. 3. Surface quality: This section stipulates that for steel coils, since there is no opportunity to remove defective parts, the steel coils can be delivered with defects, but the defective parts should not exceed 1% of the total length of each coil. The national standard GB/T12754 requires that the defective parts should not exceed 5% of the total length of each coil. By comparison, the control requirements for surface quality specified in this standard are more stringent than those of GB/T12754 for surface quality. Further limiting the proportion of total defective length is to better meet the high-quality requirements of users of color-coated steel strips for elevators.