ASTM D4494-95 (2015) rus PDF

Full title and description

Standard Test Method for Detecting Residual Odor of Drycleaning Grade Perchloroethylene — ASTM D4494 − 95 (Reapproved 2015). This short method describes a sensory (odor) comparison procedure using conditioned cotton swatches treated with drycleaning‑grade perchloroethylene and an untreated control to detect any residual or foreign odor in the solvent or treated fabric.

Abstract

This standard specifies a simple, qualitative sensory test for detecting residual or foreign odor associated with drycleaning‑grade perchloroethylene. A conditioned cotton fabric swatch is soaked in the solvent, drained, dried, and steamed; the treated swatch is then compared to an untreated swatch. The method describes required apparatus, specimen preparation, and safety precautions; SI units are used. The full procedure is concise (2 pages) and intended for routine quality checks and conformance testing.

General information

• Status: Withdrawn / superseded (replaced by a later edition — see Related standards).
• Publication date: 1 June 2015 (D4494 − 95 reapproved 2015).
• Publisher: ASTM International (Committee D26, Subcommittee D26.04).
• ICS / categories: 71.080.20 — Halogenated hydrocarbons (drycleaning solvents).
• Edition / version: Designation D4494 − 95 (Reapproved 2015).
• Number of pages: 2.

Scope

This test method covers detection of residual odor in drycleaning‑grade perchloroethylene and provides a pass/fail sensory comparison between treated and untreated cotton swatches. The procedure supplies required apparatus, fabric specifications, sample conditioning, test steps, and safety precautions for handling perchloroethylene. Values are stated in SI units.

Key topics and requirements

• Preparation of a conditioned cotton fabric swatch (specified weight range and finish-free material).
• Soaking, draining, drying, and steaming sequence for treated specimens.
• Sensory comparison procedure between treated and untreated swatches to detect off‑odors.
• Required apparatus: small beakers, oven (forced‑convection), steaming equipment as described.
• Safety and handling precautions for perchloroethylene (perform in well‑ventilated hood; reference to practice guides for labeling and safety).
• Use of SI units and brief pass/fail-style evaluation suitable for quality control.

Typical use and users

This standard is used by drycleaning solvent producers, garment and textile quality control laboratories, independent testing labs, and drycleaning operations that perform in‑house solvent checks. It is intended for routine screening to ensure no objectionable residual odor in solvent batches or in cleaned fabrics prior to release.

Related standards

ASTM D4494 − 95 (Reapproved 2015) has been superseded by a later ASTM revision (D4494 − 95 (2020) effective Jan 1, 2020). The test references related practices for safe handling and labeling of perchloroethylene (for example Practice Guide D3844 and other D26 committee documents). Users should consult the current ASTM catalogue for the latest active edition before use.

Keywords

drycleaning; perchloroethylene; tetrachloroethylene; residual odor; sensory test; halogenated hydrocarbons; solvent quality; ASTM D4494.

FAQ

Q: What is this standard?

A: ASTM D4494 − 95 (Reapproved 2015) is a short, descriptive test method for detecting residual or foreign odor associated with drycleaning‑grade perchloroethylene by comparison of treated and untreated cotton swatches.

Q: What does it cover?

A: It covers specimen preparation, apparatus, a simple soak/drain/dry/steam procedure, and a sensory comparison to determine whether a treated swatch differs from an untreated control in odor. Safety precautions for handling perchloroethylene are included.

Q: Who typically uses it?

A: Solvent manufacturers, drycleaning operators, textile quality control labs, and independent testing bodies performing routine solvent and cleaned‑fabric inspections.

Q: Is it current or superseded?

A: The 2015 reapproval is listed in historical records but the designation has been superseded by a later ASTM revision (a 2020 edition was published and the 2015 reapproval is shown as withdrawn/updated in catalog records). Users should use the current ASTM edition.

Q: Is it part of a series?

A: It is maintained by ASTM Committee D26 (Halogenated Organic Solvents and Fire Extinguishing Agents), Subcommittee D26.04 (Test Methods), and is one of several D26 test methods and practices addressing halogenated drycleaning solvents; related practices (for example D3844) provide safety and handling guidance.

Q: What are the key keywords?

A: Drycleaning, perchloroethylene (tetrachloroethylene), residual odor, sensory test, halogenated hydrocarbons, solvent quality, ASTM D4494.