ASTM D3726-84 PDF

Full title and description

ASTM D3726-84 — Specification for n-Butyl Acetate (99.5% Grade). This short ASTM specification (designation D3726, issued in 1984) defined purity and quality requirements for reagent/solvent grade n-butyl acetate at the 99.5% grade intended for industrial and laboratory uses.

Abstract

This withdrawn ASTM specification described the required analytical and physical properties for n‑butyl acetate at the 99.5% assay level, including limits on alcohol content, color (Pt‑Co/APHA), distillation range, water content, acidity, nonvolatile matter and odor/sensory requirements. The document was short (a procedural/specification sheet) and has since been withdrawn and its subjects consolidated into later, broader ASTM specifications for n‑butyl acetate.

General information

• Status: Withdrawn (documented as withdrawn in the late 1980s).
• Publication date: 1984 (designation shown as D3726‑84).
• Publisher: ASTM International.
• ICS / categories: 71.080.99 (Other organic chemicals / acetate esters).
• Edition / version: D3726‑84 (1984 edition).
• Number of pages: Very short—catalog records list it as a 2‑page specification sheet.

Scope

The specification covered the minimum compositional and quality requirements for n‑butyl acetate sold as the 99.5% grade: required assay (percent purity), maximum allowable alcohol and water contents, color limits, acceptable distillation range or boiling point range, maximum nonvolatile residue, allowable acidity, and general sensory/odor acceptance. It was intended for manufacturers, suppliers, purchasers and quality control laboratories concerned with solvent and reagent quality. The scope has since been superseded by consolidated specifications that cover multiple grades of n‑butyl acetate.

Key topics and requirements

• Assay / purity requirement (99.5% grade — minimum assay requirement for this designation).
• Limits for residual alcohol (solvent impurity control) and other volatile impurities.
• Color specification (Pt‑Co/APHA units) and sensory/odor acceptance criteria.
• Distillation/boiling range to verify grade and batch consistency.
• Maximum water content and maximum nonvolatile matter (to control performance in coatings/inks).
• Maximum allowable acidity (expressed as acetic acid or titratable acidity) to protect downstream processes and product stability.

Typical use and users

End users included solvent purchasers, coatings and inks formulators, chemical manufacturers, analytical/quality control laboratories, and procurement specialists who required a defined specification for industrial‑grade n‑butyl acetate. The specification was also used by suppliers to certify lot quality and by regulatory/QA teams verifying material conformance for production.

Related standards

Later and related ASTM documents consolidate or replace narrower grade specifications for acetate esters, notably ASTM D4615 (Standard Specification for n‑Butyl Acetate — all grades) and related test methods such as ASTM D3545 (test methods for alcohol content and purity of acetate esters). Several older single‑grade specifications for acetate esters were withdrawn and combined into broader specifications; users should reference the current D4615 series for up‑to‑date requirements.

Keywords

ASTM D3726‑84, n‑butyl acetate, butyl acetate, 99.5% grade, solvent specification, acetate esters, purity, ASTM International, withdrawn standard.

FAQ

Q: What is this standard?

A: ASTM D3726‑84 was an ASTM specification titled "Specification for n‑Butyl Acetate (99.5% Grade)" issued in 1984 that set compositional and quality limits for the 99.5% grade of n‑butyl acetate. It has been withdrawn.

Q: What does it cover?

A: It covered required purity (assay), allowable levels of alcohol and water, color limits, distillation/boiling range, nonvolatile residue, acidity limits and general sensory/odor criteria for the 99.5% grade. These are the same types of parameters consolidated into later, broader ASTM specifications.

Q: Who typically uses it?

A: Suppliers, chemical purchasers, coatings and inks formulators, and QC/analytical labs used the specification to define and verify the quality of n‑butyl acetate lots supplied as the 99.5% grade.

Q: Is it current or superseded?

A: It is withdrawn (catalog records show withdrawal in the late 1980s). The subjects covered by D3726‑84 have been consolidated into later ASTM specifications for n‑butyl acetate (for example ASTM D4615 series), so users should consult the current D4615 standard for up‑to‑date grade definitions and limits.

Q: Is it part of a series?

A: Yes — it belonged to the series of ASTM chemical specifications and test methods covering acetate esters and related organic solvents (ASTM D‑series for organic chemicals). Several single‑grade acetate ester specifications were later withdrawn and folded into consolidated specifications.

Q: What are the key keywords?

A: n‑butyl acetate, butyl acetate, 99.5% grade, solvent specification, ASTM D3726, purity, acetate esters, withdrawn.