ISO 3052-1974 PDF

Full title and description

ISO 3052:1974 — Gypsum plasters — Determination of water of crystallization content. Specifies a laboratory procedure to determine the water of crystallization in gypsum plasters using a gravimetric test method, including apparatus, sample preparation, test procedure, calculation and reporting requirements.

Abstract

This International Standard specifies a gravimetric method for the determination of the water of crystallization content of gypsum plasters. The document describes the principle of the test, the required apparatus, sample preparation, the step-by-step procedure, how to express results and the information to include in the test report.

General information

• Status: Withdrawn.
• Publication date: August 1974 (1974-08).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.100.10 (Gypsum plasters).
• Edition / version: Edition 1 (1974).
• Number of pages: 2.

Scope

Applies to the laboratory determination of the water of crystallization content in gypsum plasters. The standard gives requirements for the apparatus and materials, describes the method of taking and preparing a representative sample, specifies the drying or heating procedure used for measurement, and defines the calculations and reporting format for results.

Key topics and requirements

• Definition of water of crystallization for gypsum plasters and its significance for product quality.
• Gravimetric test principle (weighing before and after controlled drying/heating to determine water loss).
• Apparatus and reagents required (balances, ovens/dryers, sample preparation tools).
• Sample preparation, test procedure, temperature/time controls for dehydration.
• Calculation method for expressing water content and required elements of the test report.

Typical use and users

Used by materials testing laboratories, gypsum-plaster manufacturers, quality-control personnel in the construction materials sector, and researchers evaluating plaster composition and performance. Its primary purpose is routine laboratory determination of bound water to assess conformity and material properties.

Related standards

ISO 3052:1974 is part of a set of ISO documents dealing with gypsum plasters and their test methods (for example ISO 3048, ISO 3049, ISO 3051 from the same era). Many of the related gypsum-plaster standards from the 1970s have also been withdrawn. Technical work for these items was associated with ISO/TC 152 (Gypsum and related products).

Keywords

gypsum plaster; water of crystallization; gravimetric method; dehydration; test method; ISO 3052:1974; gypsum testing; material quality.

FAQ

Q: What is this standard?

A: ISO 3052:1974 is an International Standard titled "Gypsum plasters — Determination of water of crystallization content" that specifies a gravimetric laboratory method to determine bound water in gypsum plasters.

Q: What does it cover?

A: It covers the principle, apparatus, sample preparation, test procedure, calculation of results and the content of the test report for determining the water of crystallization in gypsum plasters using a gravimetric technique.

Q: Who typically uses it?

A: Materials testing laboratories, manufacturers of gypsum plasters, construction quality-control teams and researchers concerned with plaster composition and performance typically use this type of test method.

Q: Is it current or superseded?

A: ISO 3052:1974 is withdrawn. Records indicate it has been withdrawn from the ISO catalogue (withdrawal stage). Related gypsum-plaster standards from the same period have also been withdrawn or replaced; users should check for more recent standards or national test methods for current practice.

Q: Is it part of a series?

A: Yes — it belongs to the group of ISO standards that addressed gypsum plasters and their test methods (examples: ISO 3048, ISO 3049, ISO 3051). These documents were developed under the activity of ISO/TC 152 covering gypsum and related products.

Q: What are the key keywords?

A: Gypsum, gypsum plaster, water of crystallization, gravimetric determination, dehydration, test method, ISO 3052.