API 15LR-2001
低压玻璃钢管规范 (第7版)
First Principles Analysis
1. Scope
This specification covers low-pressure (≤3.45 MPa) fiberglass line pipe and well casing made from thermosetting resin and glass fiber reinforcement. Both contact-molded and filament-wound manufacturing methods are covered. Typical applications include low-pressure transmission lines, water treatment piping, and chemical injection lines.
How to Apply API 15LR-2001
Conformity work starts by confirming the exact edition of API 15LR-2001 required by the contract and identifying any purchaser-specific additions. The product type, material system, dimensions, pressure or temperature rating, manufacturing route, and intended service environment must then be mapped to the clauses that apply. An inspection and test plan should state the sampling frequency, specimen conditioning, calibrated equipment, acceptance criteria, witness points, and rules for retesting before laboratory work begins.
A defensible report records sample identity, batch traceability, the method and edition used, environmental conditions, raw observations, calculations, measurement uncertainty where relevant, deviations, and the final result against each requirement. LEISA uses this evidence chain to help buyers, manufacturers, and engineering companies distinguish a repeatable compliance decision from a simple pass/fail statement. The original publication remains the controlling source whenever a summary conflicts with the standard text.