Safety Instruction Sheet for Piping and Pipelines | SAES-L-125 [PDF]

The SAES-L-125 standard provides guidelines and requirements for the preparation of Safety Instruction Sheets (SIS) for piping systems in new and existing plants. These safety instruction sheets serve the purpose of providing essential information to operating, maintenance, and inspection personnel about safe operating limits, protective devices, and special safety precautions related to piping systems and pipelines.

Read and Download full standard of SAES-L-125.

SAES-L-125

Here are some key points from the standard:

Purpose:

• The primary purpose of safety instruction sheets (SIS) is to ensure that personnel have consistent and adequate information regarding the safe operation of piping systems and pipelines.
• SIS should cover critical plant piping, cross-country and offshore pipelines, terminal and bulk plant piping, and other systems as defined by Saudi Aramco Engineering Standards.

Preparation of Safety Instruction Sheets:

• Safety Instruction Sheets should reflect as-built information, and while they may be started during the project design stage, all information should be field-verified.
• The standard provides specific Saudi Aramco Engineering Forms for the preparation of SIS, each tailored to different types of piping systems and applications.

Types of Safety Instruction Sheets:

• Form 2821-ENG: “Safety Instruction Sheet – Plant Piping” for critical plant piping.
• Form 5645-1-ENG: “Safety Instruction Sheet for Cross Country Pipelines – Main Line Pipe” for major pipelines.
• Form 5645-2-ENG: “Safety Instruction Sheet for Cross Country Pipelines – Critical Piping” for critical components within pipeline networks.
• Form 5645-3-ENG: “Safety Instruction Sheet – Terminal and Bulk Plant Piping” for critical piping in terminals and bulk plants.

Criteria for Critical Piping:

• Critical piping is defined based on factors such as the potential impact of failure, high temperature or pressure, hazardous fluid characteristics, and environmental impact.
• Specific criteria are provided in the standard to determine if a piping system qualifies as critical.

Documentation:

• Calculation sheets should be attached to each SIS, detailing the method for achieving calculated values, including formulas, variables, units, and standards requirements.
• Diagrams showing the limits of each covered piping section should be included in the documentation.

Application:

• The standard applies to both new piping systems and modifications to existing ones.

The SAES-L-125 standard ensures that safety-related information is systematically documented and provided to personnel responsible for operating, maintaining, and inspecting piping systems, helping to mitigate risks associated with these systems.