ASTM D7714-11 (2021) PDF

Full title and description

Standard Specification for Glycerin Base Engine Coolant for Automobile and Light‑Duty Service — ASTM D7714‑11 (reapproved 2021). This specification defines requirements for glycerin‑based engine coolant concentrates and prediluted coolants intended for automobile and light‑duty engine cooling systems, including physical, chemical and performance characteristics required for protection against freezing, boiling and corrosion.

Abstract

This specification covers glycerin base engine coolants used in automobiles and light‑duty service. It specifies categories (Type I – concentrate; Type II – prediluted 50–60 %), required ingredients (glycerin meeting Specification D7640, appropriate inhibitors, dye and foam suppressor), and limits or test requirements for properties such as colour, effect on non‑metals, relative density, corrosion in glassware, chloride/sulfate content, hardness, pH and trace iron. The document is concise (short form specification) and references relevant ASTM test methods for analysis and verification.

General information

• Status: Active (D7714‑11 reapproved 2021, maintained as D7714‑11R21).
• Publication date: Reapproval published January 9, 2021 (original designation D7714‑11, 2011).
• Publisher: ASTM International.
• ICS / categories: Refrigerants and antifreezes — ICS 71.100.45 (engine coolants and antifreezes).
• Edition / version: D7714‑11 (Reapproved 2021) — often cited as D7714‑11R21.
• Number of pages: 5 pages (short specification format).

Scope

The scope covers glycerin base engine coolants formulated for automobiles and other light‑duty cooling systems. It applies to two product types: Type I (glycerin base concentrate intended for dilution to 50–60 % volume in water) and Type II (prediluted glycerin base coolants with 50–60 % glycerin by volume ready for direct use). The specification sets concentration, ingredient and water‑quality requirements (for prediluted products) and defines the performance expectations for freeze/boil protection and corrosion control in light‑duty service. It does not address heavy‑duty engine service (a separate glycerin heavy‑duty specification exists).

Key topics and requirements

• Product classification: Type I (concentrate) and Type II (prediluted 50–60 % glycerin by volume).
• Required materials: engine‑coolant grade glycerin that meets Specification D7640, appropriate corrosion inhibitors, dye and foam suppressor.
• Analytical/property limits: limits on chlorides, sulfates, hardness (as CaCO3), trace iron, and specified pH range (typically near neutral range specified in referenced test methods).
• Performance checks: relative density, effect on non‑metals, and corrosion in glassware (laboratory corrosion screening tests referenced).
• Referenced ASTM test methods and standards for measurement and verification (examples include D5827, D512, D5931, D6130, D6660, D7640 and related engine‑coolant test practices).

Typical use and users

Used by coolant formulators and manufacturers, quality control and test laboratories, OEM chemical and materials engineers, aftermarket coolant suppliers, and spec writers for light‑duty vehicle service products. It is employed to verify raw glycerin and finished coolant formulations meet minimal safety, corrosion and freeze/boil protection requirements for passenger cars and light trucks.

Related standards

Related ASTM specifications and test methods commonly referenced with D7714 include: Specification D7640 (engine coolant grade glycerin), D3306 (glycol‑based engine coolant for automobiles), D7715 (glycerin base coolant for heavy‑duty engines), D5827 (analysis for anions), D5931 (density), D6130 (trace elements) and D2847 (engine coolant testing practice in car and light truck service). These standards provide complementary material, test procedures and alternate coolant system specifications.

Keywords

ASTM D7714, glycerin base engine coolant, prediluted coolant, engine coolant concentrate, light‑duty service, antifreeze, corrosion inhibitors, D7640, coolant specification.

FAQ

Q: What is this standard?

A: ASTM D7714‑11 (reapproved 2021) is a short specification that defines requirements for glycerin‑based engine coolants intended for automobile and light‑duty engine cooling systems, including concentrate and prediluted products.

Q: What does it cover?

A: It covers composition and performance requirements—ingredient quality (glycerin per D7640), limits for contaminants and key properties (chloride, sulfate, hardness, pH, trace iron), effect on non‑metal materials, density and corrosion screening—plus categorization into Type I (concentrate) and Type II (prediluted 50–60 %).

Q: Who typically uses it?

A: Coolant formulators, manufacturers, QC and test laboratories, OEM material engineers, aftermarket coolant producers and anyone specifying or verifying glycerin‑based coolants for light‑duty vehicle service.

Q: Is it current or superseded?

A: The document is the D7714‑11 designation reapproved in 2021 (often shown as D7714‑11R21) and is maintained as an active ASTM specification; users should check ASTM publication records for any later revisions or superseding documents before relying on it for compliance.

Q: Is it part of a series?

A: Yes. D7714 is part of ASTM Committee D15 engine‑coolant specifications and is related to other ASTM coolant standards such as D3306 (glycol‑based coolants for light duty), D7715 (glycerin for heavy duty), and supporting test methods (D5827, D5931, D6130, D6660, D7640, etc.).

Q: What are the key keywords?

A: Glycerin base engine coolant, engine coolant concentrate, prediluted coolant, antifreeze, corrosion inhibitors, ASTM D7714, light‑duty service, D7640.