API MPMS Ch. 10.4 is a focused technical API document covering the determination of water and/or sediment in crude oil by the centrifuge method for field procedure use. As part of the API MPMS series, it is intended to support consistent measurement practices where crude oil quality and custody-related checks depend on reliable field results. This 5th edition, published in 2020, is a practical reference for teams that need a recognized method for evaluating water and sediment content during routine operations, inspection work, or quality control activities.

Purpose of API MPMS Ch. 10.4

The purpose of API MPMS Ch. 10.4 is to provide a recognized technical reference for determining water and/or sediment in crude oil using a centrifuge-based field procedure. In a standards library, this type of API document helps establish a common benchmark for measurement practice and reporting consistency. It is especially relevant where crude oil handling depends on repeatable field checks and alignment between operations, inspection, and quality functions. For buyers, it serves as a practical engineering reference for documented methods rather than a general overview.

Common use cases of API MPMS Ch. 10.4

API MPMS Ch. 10.4 is commonly used in crude oil field operations, terminal work, pipeline activity, and other petroleum handling environments where water and sediment checks support day-to-day control decisions. It may be consulted by operations personnel, inspection teams, QA/QC staff, and technical specialists responsible for measurement consistency and sample-based review. The document is also useful in procurement and engineering settings when specifying a reference method for field procedure alignment, especially where crude quality verification affects transfer, acceptance, or internal reporting workflows.

Why API MPMS Ch. 10.4 matters

API MPMS Ch. 10.4 matters because water and sediment levels can affect crude oil handling, quality decisions, and operational confidence. Having a defined API reference helps teams apply a consistent field procedure, reducing ambiguity in routine checks and supporting more defensible measurement practices. For engineering, inspection, and operations groups, it provides a stable technical basis for work instructions, internal procedures, and quality control coordination. For procurement and documentation teams, it clarifies exactly which standard is being referenced when method consistency is important.

• Crude oil water and sediment field determination
• Centrifuge method reference
• Operations and inspection support
• Quality control and measurement consistency
• Field procedure for petroleum handling
• Engineering and procurement reference