SAE AMS1428L-2023 PDF

Full title and description

SAE International Material Specification AMS1428L — "Fluid, Aircraft Deicing/Anti‑Icing, Non‑Newtonian (Pseudoplastic), SAE Types II, III, and IV". This foundation specification defines material, performance and testing requirements for non‑Newtonian (pseudoplastic) aircraft deicing and anti‑icing fluids and references category specifications for glycol and non‑glycol based fluids.

Abstract

This specification (AMS1428L, revised February 14, 2023) establishes physical, chemical and performance criteria, inspection and testing procedures, and qualification/lot acceptance provisions for SAE Types II, III and IV aircraft deicing/anti‑icing fluids in non‑Newtonian (pseudoplastic) form. It is a foundation document intended to be used with the AMS1428/1 (glycol‑based) and AMS1428/2 (non‑glycol based) category specifications.

General information

• Status: Revised (Revision L).
• Publication date: February 14, 2023 (AMS1428L revision).
• Publisher: SAE International.
• ICS / categories: Aerospace materials and maintenance; aircraft deicing/anti‑icing fluids; materials properties and quality assurance.
• Edition / version: AMS1428L (Revision L, 2023).
• Number of pages: 27 pages (AMS1428L record).

Scope

AMS1428L is the foundation specification for non‑Newtonian (pseudoplastic) aircraft deicing/anti‑icing fluids and covers three SAE fluid types (II, III, IV). It defines required material characteristics, test methods (including qualification, site/unit qualification, periodic requalification and lot acceptance), and preparation/delivery requirements. Category specifications (AMS1428/1 for glycol‑based fluids and AMS1428/2 for non‑glycol based fluids) provide additional, type‑specific requirements.

Key topics and requirements

• Classification of SAE Types II, III and IV deicing/anti‑icing fluids and their intended applications (runway/airframe use characteristics).
• Definition of non‑Newtonian (pseudoplastic) rheological behavior and allowable viscosity/flow properties for on‑wing performance and sprayability.
• Chemical and physical property limits (e.g., glycol content where applicable, freezing point/refractometry, corrosion inhibitors, specific gravity).
• Required laboratory and field test methods, sample preparation, qualification testing, on‑wing viscosity testing and lot acceptance criteria.
• Quality assurance, documentation, storage/packaging and handling instructions for delivering conforming lots.
• Compatibility and environmental considerations, including references to accepted analytical and test standards where applicable.

Typical use and users

Primary users are deicing/anti‑icing fluid manufacturers, suppliers, aircraft operators (airlines, cargo carriers), maintenance/repair organizations (MRO), airport winter operations teams, certification and procurement engineers, and regulatory authorities responsible for aircraft ground deicing procedures. The specification is used for product development, supplier qualification, procurement specifications and acceptance testing.

Related standards

Directly related category documents: AMS1428/1 (Glycol‑based Type II/III/IV) and AMS1428/2 (Non‑glycol based). AMS1428 foundation revisions have been aligned with related AMS documents (for example updates referencing AMS1424 and adoption of specific ASTM methods such as ASTM D1218 for refractive index where noted in revision commentary). Users typically consult applicable ASTM and ISO test methods referenced in the normative section for lab procedures.

Keywords

AMS1428L, aircraft deicing fluid, anti‑icing fluid, non‑Newtonian, pseudoplastic, SAE Type II, SAE Type III, SAE Type IV, qualification, lot acceptance, viscosity, refractive index, glycol, non‑glycol.

FAQ

Q: What is this standard?

A: AMS1428L is a material specification from SAE International that sets requirements and test methods for non‑Newtonian (pseudoplastic) aircraft deicing and anti‑icing fluids (SAE Types II, III and IV).

Q: What does it cover?

A: It covers classification, physical and chemical property limits, rheological requirements, laboratory and field test procedures, qualification and lot acceptance, and preparation/delivery requirements for Type II/III/IV fluids; category supplements AMS1428/1 and AMS1428/2 add type‑specific provisions.

Q: Who typically uses it?

A: Manufacturers of deicing/anti‑icing fluids, airlines and ground‑handling organizations, MROs, airport winter operations teams, procurement/certification engineers and regulatory bodies.

Q: Is it current or superseded?

A: AMS1428L is the Revision L document published on February 14, 2023. It was later followed by a subsequent revision (AMS1428M, revised June 27, 2025); users should check the buyer/publisher record to confirm which revision is currently in force for procurement or certification.

Q: Is it part of a series?

A: Yes — AMS1428 is a foundation specification with accompanying category specifications (AMS1428/1 and AMS1428/2) that together define requirements for different fluid chemistries and types. The AMS1428 family has a documented revision history (A → L → M, etc.).

Q: What are the key keywords?

A: Aircraft deicing, anti‑icing, non‑Newtonian, pseudoplastic, SAE Type II/III/IV, qualification, lot acceptance, viscosity, glycol, AMS1428.