ISO 2844-1974 PDF

Full title and description

St ISO 2844-1974 — Prints and printing inks — Determination of the resistance of prints to spices. This short ISO method specifies a laboratory procedure to assess how printed materials and printing inks resist staining, discoloration or other deterioration when exposed to common culinary spices.

Abstract

ISO 2844:1974 provided a standardized test method for evaluating the resistance of prints and printing inks to spices. The method described specimen preparation, exposure of printed samples to defined spice materials, and criteria for assessing change or damage. The standard was published in 1974 and has since been withdrawn and superseded by a later consolidated standard covering resistance of prints to a range of foodstuffs and detergents.

General information

• Status: Withdrawn / cancelled (withdrawn international standard).
• Publication date: August 1974 (Edition 1, 1974-08).
• Publisher: ISO — International Organization for Standardization.
• ICS / categories: 87.080 (Graphic technology — printing and printing inks).
• Edition / version: Edition 1 (1974).
• Number of pages: 2.

Scope

This standard specified a laboratory procedure to determine the resistance of printed matter and printing inks to common spices (i.e., whether spices cause staining, colour change or other deterioration of the print). The procedure covered preparation of test specimens, application or exposure of specified spice materials under controlled conditions, and a visual/ instrumental assessment of changes. ISO 2844:1974 has been withdrawn and users are directed to the later consolidated standard that supersedes these single-substance methods.

Key topics and requirements

• Definition of test specimens (printed samples representative of normal production prints).
• Selection and preparation of spice test materials and controlled exposure conditions.
• Procedure for applying or contacting spices with the print surface (time, pressure, temperature where specified).
• Criteria and method for assessing resistance — visual comparison, staining evaluation and acceptable limits for change.
• Reporting requirements: specimen identification, ink and substrate details, test conditions and results.

Typical use and users

Intended for quality-control and laboratory personnel in the graphic arts and packaging industries, ink and substrate manufacturers, print buyers and testing laboratories concerned with the durability and food-contact appearance of printed materials (for example food packaging and labels). Historically used to compare inks or substrates for susceptibility to staining by spices.

Related standards

ISO 2844:1974 was part of a group of short test methods issued in the 1970s for assessing resistance of prints to various substances; these were later consolidated or replaced. The ISO record indicates ISO 2844:1974 has been withdrawn and that ISO 2836:1999 is the successor consolidated standard dealing with resistance of prints to a range of substances. Other nearby items in the same topical series included ISO 2839, 2840–2843 which addressed resistance to soaps, detergents, cheese, edible oils and waxes; these earlier single-substance methods were superseded by later consolidated documents.

Keywords

printing inks; prints; resistance; spices; stain testing; print durability; graphic technology; ISO 2844; test method; food packaging.

FAQ

Q: What is this standard?

A: ISO 2844:1974 is an international test method titled "Prints and printing inks — Determination of the resistance of prints to spices" that defined how to assess the effect of spices on printed matter.

Q: What does it cover?

A: It covered specimen preparation, exposure of printed samples to specified spice materials under controlled conditions, and evaluation criteria for staining or other deterioration of the print surface.

Q: Who typically uses it?

A: Historically, printers, ink manufacturers, packaging converters, food-packaging specifiers and independent testing laboratories used it for quality control and comparative testing.

Q: Is it current or superseded?

A: ISO 2844:1974 has been withdrawn; the ISO bibliographic record shows it was withdrawn and that users are referred to later consolidated standards (for example ISO 2836:1999) that supersede the individual single-substance methods.

Q: Is it part of a series?

A: Yes — it was one of several 1970s ISO methods addressing resistance of prints to specific substances (soaps, detergents, cheese, edible oils, waxes and spices). Many of those single-substance standards were later replaced by consolidated documents.

Q: What are the key keywords?

A: Printing inks, prints, spices, stain resistance, test method, print durability, food packaging, graphic technology.