Astm D61821 Pdf Jun 2026

The main objective of this test method is to measure how well a leather finish resists: Delamination (peeling away) Discoloration

Note: ASTM D61821 is not a standard designation within the active ASTM International cannon. Based on user search patterns and typographical analysis, this article addresses both the potential confusion with (Standard Practice for Conditioning Plastics for Testing) and the structure of obtaining any ASTM standard in PDF format. A specific section addresses how to handle non-existent or mis-typed standards.

The standard aims to establish a consistent baseline of temperature and humidity. This baseline isolates the actual material qualities from temporary environmental biases. Core Conditioning Procedures outlined in the PDF ASTM D618-21 - Conditioning Plastics for Testing Standards

If you meant a different ASTM D6182 (e.g., a different year or topic), please share the official title or a few keywords from the PDF, and I’ll tailor the text accordingly.

This test method covers the determination of the extractable content of plastic materials, including: astm d61821 pdf

Comprehensive Guide to ASTM D618-21: Standard Practice for Conditioning Plastics for Testing

Based on the numbering sequence and common ASTM standards, it is highly likely you are looking for (Standard Test Method for Nonvolatile Matter of Unsaturated Polyester Resins) or possibly ASTM D618 (Standard Test Methods for Water Absorption).

Heavily utilized in electrical and high-stress mechanical testing to ensure maximum water saturation. How to Correctly Read ASTM D618 Coded Designations

The standard acknowledges that some specific plastic materials may have their own detailed specification that references ASTM D618-21 but with certain modifications. In such a case, the material's own specification takes precedence over this standard. The main objective of this test method is

Without this standard, two different laboratories could test the same batch of plastic material and obtain wildly different results simply because one lab is humid and the other is dry. Therefore, D618-21 defines the specific procedures for preparing specimens to ensure that comparisons between different materials and between different laboratories are reliable.

Create a conditional baseline for temperature and humidity.

Standard laboratory atmosphere conditioning (typically 40+ hours at relative humidity).

You can purchase the full four-page ASTM D618-21 PDF directly from ASTM International or through authorized distributors like ANSI and Intertek Inform . The standard aims to establish a consistent baseline

A: This standard is used by quality control laboratories in plastic manufacturing plants, university research facilities, third-party testing labs (like UL or Intertek), and by engineers in industries that rely on plastics for final products, such as automotive, aerospace, packaging, and medical devices.

The standard incorporates a critical caveat for material engineers. It states that if a specific material specification exists (referenced in Classification D4000), that specification takes precedence over this conditioning practice. Therefore, users must always consult the specific material specification first.

Finally, the hum stopped. Leo inspected the "Midnight Black" surface under a magnifying glass. The finish was perfect—no cracks, no peeling, no discoloration. ASTM D6182-23 - Accuris