T/JMTX 008-2020 Active Group standards

T/JMTX 008-2020 Pressure vessel delivery protection and transportation packaging

Publish Date: 2020-03-20 Implement Date: 2020-03-20 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/JMTX 008-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: General machinery and equipment

ICS Name: Pressure vessels, gas cylinders

Publish Date: 2020-03-20

Implement Date: 2020-03-20

Scope

Main Technical Content: 3. Protection 3.1 Surface Rust Removal For the outer surfaces of carbon steel and low-alloy steel containers, the inner surfaces that can be rust-removed, and other surfaces requiring anti-corrosion coatings, rust removal should be carried out. Surface rust removal should be performed using spraying, blasting, or manual and power tools, and care should be taken to avoid damaging the container surface during the process. Before rust removal, thick rust layers should be removed, and visible grease and dirt should be cleaned off. After rust removal, floating dust and debris should be removed. The steel surface after rust removal should meet the requirements of St2 or Sa2 grades as specified in GB/T 8923–1988, and this is considered acceptable. After rust removal, the residues inside the container should be cleaned thoroughly. 3.2 Application of Anti-Corrosion Coatings The quality inspection department of the container manufacturing unit shall only allow the application of anti-corrosion coatings after passing all quality inspections, including surface rust removal. The metal surface should be clean and dry before application. Surface unevenness and scratches should be removed by grinding and smoothed over, and putty should not be used. The selection of anti-corrosion coatings should be determined based on factors such as the nature and temperature of the container's internal medium, environmental conditions, the container's role in the process flow, cost, and the performance and curing conditions of the coating. If there are no special requirements for anti-corrosion coatings in the design specifications, the outer surface of the container shell should be coated with at least two layers of alkyd primer, with a dry film thickness of not less than 30μm. Generally, the outer surface of the container shell should be coated with one layer of topcoat, and the color of the topcoat should be light. If otherwise specified in the design specific