NACE TM0172-2015 PDF

Full title and description

NACE TM0172-2015 — Determining Corrosive Properties of Insoluble Petroleum Product Pipeline Cargoes. This test method provides a uniform laboratory procedure for evaluating the corrosive potential of liquid petroleum products (for example gasoline and distillate fuels) and other non‑water‑soluble hydrocarbon cargoes prior to transport in steel pipelines; it includes specimen preparation, apparatus, test procedure and a system for rating corroded specimen area.

Abstract

NACE TM0172-2015 is a short, batch-capable corrosion screening method (derived from and adapted to ASTM D665) in which prepared cylindrical steel specimens are exposed to the product (with optional water contamination and/or corrosion inhibitor additions), stirred at a prescribed temperature for a fixed exposure period (commonly 3.5 hours), then removed and rated by percentage of surface area corroded. The method is intended for rapid assessment and batch control and does not predict corrosion modes such as MIC or under-deposit corrosion.

General information

• Status: Current / active (2015 edition maintained by NACE Task Group).
• Publication date: Published as TM0172-2015 (commercial listings show availability with distribution dates reported around Jan 1, 2015–Jan 1, 2016).
• Publisher: NACE International (now part of AMPP/NACE catalogues).
• ICS / categories: Corrosion of metals and petroleum/pipeline equipment (typical ICS areas: 77.060 Corrosion of metals; 75.200 Petroleum/pipeline equipment).
• Edition / version: 2015 edition (TM0172-2015; revision of earlier TM0172 editions).
• Number of pages: Approximately 16 pages (commercial distributors list 16 pages).

Scope

The standard specifies a short laboratory procedure to determine the corrosive properties of non‑water‑soluble petroleum products intended for steel pipeline transport. It covers test specimen type and preparation, test apparatus and conditions, exposure variants (product alone; product + distilled water; product ± water + corrosion inhibitor), exposure duration and specimen rating. The method is not intended to evaluate corrosiveness in a standing aqueous phase, microbiologically influenced corrosion (MIC), or under‑deposit corrosion, nor is it appropriate for water‑soluble hydrocarbons.

Key topics and requirements

• Specimen preparation: cylindrical steel specimens prepared to specified surface condition and dimensions.
• Test liquid variants: original product; product with added distilled water (commonly 10%); product (± water) with corrosion inhibitor to evaluate inhibitor effectiveness.
• Test conditions: controlled stirring and temperature, with a standard exposure period (commonly 3.5 hours) followed by cleaning and corrosion-area rating.
• Result reporting: rating based on percent of surface area corroded and categorization per NACE rating system in the method.
• Limitations: not predictive for standing aqueous-phase corrosion, MIC, under-deposit corrosion, or water‑soluble hydrocarbon corrosivity.
• Relationship to ASTM D665: TM0172 adapts and shortens procedures compatible with ASTM D665 to permit same‑day, batch control use for fuels and other insoluble products.

Typical use and users

Used by pipeline operators, refiners, fuel/blend terminal laboratories, corrosion engineers, quality control and product-release teams, and third‑party testing laboratories to screen batches or shipments for corrosivity before pipeline acceptance or delivery. The test is especially useful where rapid, same‑day decisions on release or treatment are required.

Related standards

Closely related/referenced methods and documents include ASTM D665 (standard corrosion test procedures for fuels and oils) and other NACE practices for pipeline corrosion control (for example SP/PR documents on internal corrosion control); TM0172 is a revision of earlier TM0172 editions (e.g., TM0172‑2001). Equipment and kit suppliers often reference TM0172 when advertising compatible corrosion‑test apparatus and automated image‑analysis systems.

Keywords

NACE TM0172-2015; corrosive properties; petroleum product pipelines; gasoline; distillate fuels; corrosion testing; batch control; ASTM D665; specimen rating; pipeline cargoes.

FAQ

Q: What is this standard?

A: NACE TM0172-2015 is a NACE test method for determining the corrosive properties of insoluble petroleum product pipeline cargoes (gasoline, distillates and similar hydrocarbon products) using a short, laboratory immersion/stir test and surface‑area corrosion rating.

Q: What does it cover?

A: It covers specimen preparation, apparatus and test conditions, three common test liquid variants (product alone; product + distilled water; product ± water + inhibitor), a defined exposure period (commonly about 3.5 hours) and procedures for cleaning and rating corroded area. It excludes standing aqueous-phase corrosion, MIC and under‑deposit corrosion assessments.

Q: Who typically uses it?

A: Pipeline operators, refinery and terminal QC labs, corrosion engineers, treatment/inhibitor vendors, and test laboratories performing batch release or compatibility screening for pipeline transport. TM0172 is commonly used where rapid, same‑day screening is needed.

Q: Is it current or superseded?

A: The 2015 edition (TM0172-2015) is published as the current TM0172 edition and supersedes earlier versions (for example TM0172‑2001). Commercial distributors list the 2015 edition as the active edition.

Q: Is it part of a series?

A: TM0172 is part of NACE’s family of test methods and recommended practices for laboratory corrosion testing and pipeline/internal corrosion control (other NACE TM/SP documents address related laboratory tests and pipeline corrosion control). It is maintained by a NACE task group responsible for pipeline‑cargo corrosion screening methods.

Q: What are the key keywords?

A: Corrosive properties, petroleum products, pipeline cargoes, corrosion testing, ASTM D665, specimen rating, rapid batch screening, NACE TM0172-2015.