ASTM D4714-96 (2007) PDF

Full title and description

Standard Test Method for Determination of Effect of Moist Heat (50% Relative Humidity and 90°C) on Properties of Paper and Board — ASTM D4714-96 (2007). This test method defines an accelerated humid heat treatment (50% RH at 90°C) and the general procedure for testing paper and board after exposure to infer aging-related changes in physical and optical properties.

Abstract

ASTM D4714-96 specifies a laboratory procedure for exposing paper and paperboard to moist heat (50% relative humidity at 90°C) to accelerate aging. After exposure, treated specimens are evaluated for changes in mechanical and optical properties (for example, strength, stiffness, dimensional stability, folding endurance and brightness) so users may draw inferences about the material's relative resistance to humid heat aging. The method is intended primarily for printing and writing papers but may be used, with discretion, for other papers and boards.

General information

• Status: Historically published as ASTM D4714-96; catalog listings and third‑party indexes indicate the document was published/reissued in 2007 and later shown in ASTM historical records. Some catalogs list the designation as withdrawn (reported in secondary listings). Users should consult ASTM International for the current official status before relying on the method.
• Publication date: Original designation: 1996 (D4714-96). Reissue/catalog date shown as January 8, 2007 (designation shown as D4714-96(2007) in commercial listings). ASTM catalog entries show historical updates (examples: Aug 16, 2017; Mar 02, 2021).
• Publisher: ASTM International (formerly American Society for Testing and Materials).
• ICS / categories: Paper and board — ICS 85.060 (testing of paper and board).
• Edition / version: Designation commonly cited as D4714-96 (with later catalog notations such as D4714-96R01 or D4714-96(2001)/D4714-96(2007) in various listings).
• Number of pages: 4 pages (short test method format).

Scope

This test method covers the humidified (50% relative humidity and 90°C) heat treatment of paper and board and the general procedure for testing the heat‑treated materials to obtain accelerated inferences about aging qualities. It is based on work performed on printing and writing papers and may be used with discretion for other paper types; it is not intended for electrical insulating papers (see Methods D202 for that application). The standard notes that users must consider safety and regulatory constraints prior to use.

Key topics and requirements

• Controlled exposure condition: 50% relative humidity at 90°C (humid heat chamber) for specified exposure durations to accelerate moist‑heat aging.
• Sample preparation and handling procedures before and after exposure to ensure reproducible comparisons.
• Post‑exposure evaluation of material properties — typical properties of interest include tensile strength, stiffness, folding endurance, dimensional change and optical properties such as brightness and color.
• Notes on applicability: developed for printing and writing papers; use with discretion for other paper grades; not intended for electrical insulating papers (refer to Method D202 for those tests).
• Health and safety: users must establish appropriate safety practices when operating high‑temperature, humid test equipment and when handling aged specimens.

Typical use and users

Used by paper and paperboard manufacturers, quality control and product development laboratories, packaging engineers, printers and paper‑converting companies to compare moist‑heat stability of paper grades or to screen materials for accelerated humid‑heat resistance. Archivists and conservation scientists may also reference the method for comparative accelerated testing, although specialised conservation protocols are typically used for cultural materials.

Related standards

Related documents and areas to consult include ASTM Methods addressing paper testing and aging (for example, Method D202 for electrical insulating papers), TAPPI and ISO standards for accelerated aging of paper and board, and other ASTM test methods on paper physical properties. Users should consult the relevant ASTM committee (D06 — Paper and Board) catalog and TAPPI/ISO indexes for specific complementary methods.

Keywords

moist heat, accelerated aging, relative humidity, paper testing, paperboard, thermal aging, ASTM D4714, printing paper, material stability

FAQ

Q: What is this standard?

A: It is ASTM D4714‑96, a short test method that defines a humidified heat‑exposure procedure (50% RH at 90°C) and general testing guidance to assess how paper and board properties change after moist‑heat aging.

Q: What does it cover?

A: The method covers the exposure procedure (humid heat at 50% RH and 90°C), sample handling and the general approach to evaluate material property changes after exposure so users can make inferences about aging behaviour. It is primarily intended for printing and writing papers but may be applied with caution to other types of paper and board.

Q: Who typically uses it?

A: Paper manufacturers, quality and R&D laboratories, printers and packaging engineers for comparative testing of moist‑heat resistance; also used as a reference by labs that perform accelerated aging studies on paper products.

Q: Is it current or superseded?

A: Commercial listings show D4714‑96 with catalog/reissue dates (examples: 2007 listings) and ASTM catalog entries with historical updates; some third‑party indexes list the designation as withdrawn (reported around 2010). Because status annotations vary among sources, confirm the official current status directly with ASTM International before using the method as a normative reference.

Q: Is it part of a series?

A: The method falls under the jurisdiction of ASTM Committee D06 (Paper and Board) and is part of the suite of ASTM test methods dealing with paper physical and aging properties. It is referenced alongside other ASTM and industry test methods for paper testing.

Q: What are the key keywords?

A: moist heat, accelerated aging, 50% RH, 90°C, paper, paperboard, ASTM D4714, humidified heat exposure.