ISO 7976-2-1989 PDF

Full title and description

St ISO 7976-2:1989 — Tolerances for building — Methods of measurement of buildings and building products — Part 2: Position of measuring points. This part gives guidance on the position of measuring points to be used when measuring buildings and building products for check and compliance purposes and when collecting accuracy data; certain very soft building products (for example glass wool and similar materials) are excluded.

Abstract

Provides recommendations for laying out measuring points and reference lines on building elements and products to ensure consistent, repeatable measurements of shape, dimensions and dimensional deviations. The guidance is intended to support conformity checks, site acceptance measurements and the collection of accuracy data for measurement methods and instruments described in the companion document (Part 1). The standard explicitly excludes some soft materials (for example glass wool) from its application.

General information

• Status: Published — International Standard (confirmed at last systematic review).
• Publication date: March 1989 (Edition 1, 1989-03).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 91.200 (Construction technology).
• Edition / version: Edition 1 (1989).
• Number of pages: 24.

Key bibliographic and status details above are taken from the ISO catalogue entry for ISO 7976-2:1989.

Scope

Specifies recommended positions and layouts for measuring points and reference marks used in measuring building elements and building products. The recommendations apply to measurements carried out for checks, compliance and the collection of accuracy data and are intended to be used together with the measurement methods and instrument guidance given in ISO 7976-1. The standard does not apply to building products composed of glass wool or similar soft materials.

Key topics and requirements

• Definitions and terminology related to measuring points, reference lines and reference planes.
• Principles for establishing reference lines and datum points on building elements (walls, floors, ceilings, openings).
• Recommended layouts and spacing of measuring points for typical faces and features to ensure representative sampling.
• Guidance on placement of measuring points for check and compliance measurements and for collecting accuracy data.
• Exclusions and special considerations for very soft materials (e.g., glass wool) where the method is not applicable.
• Cross-reference to methods and instruments in Part 1 (ISO 7976-1) for measurement procedures and instrument selection.

Typical use and users

Used by surveyors, site inspectors, architects, structural engineers, contractors and testing laboratories when performing building tolerance checks, as-built dimensional surveys, quality assurance/quality control inspections and when compiling measurement accuracy data. Also used by standards bodies and national committees when adopting or aligning national measurement practice with international guidance.

Related standards

Closely linked to ISO 7976-1:1989 (Methods and instruments) — Part 1 provides the measurement methods and instrument guidance that Part 2 assumes or complements. Other related documents include parts of the ISO 8322 series (measuring-instrument accuracy procedures) and adjacent building measurement/set-out standards referenced by ISO technical committees in construction technology. National equivalents or adoptions (for example BS/EN adoptions) may be published by national standards bodies.

Keywords

building tolerances, measurement of buildings, measuring points, reference lines, dimensional deviations, construction measurement, ISO 7976-2:1989, measurement layout.

FAQ

Q: What is this standard?

A: ISO 7976-2:1989 is Part 2 of the ISO series on tolerances for building; it provides guidance on where to place measuring points and reference marks used when measuring buildings and building products.

Q: What does it cover?

A: It covers recommended positions and layouts for measuring points used for check, compliance and accuracy-data collection measurements on building elements and products, and excludes certain soft products such as glass wool.

Q: Who typically uses it?

A: Surveyors, inspectors, architects, engineers, contractors, testing laboratories and standards bodies involved in building measurement, acceptance testing and quality control.

Q: Is it current or superseded?

A: ISO 7976-2:1989 is a published International Standard; its ISO catalogue record shows it has been subject to periodic review and has been confirmed through systematic review processes. Users should check the ISO catalogue or their national standards body for the absolute latest status before formal use.

Q: Is it part of a series?

A: Yes — it is Part 2 of ISO 7976. Part 1 (ISO 7976-1:1989) covers measurement methods and instruments and is intended to be used together with Part 2. The ISO 7976 set sits within ICS 91.200 (construction technology).

Q: What are the key keywords?

A: Building tolerances; measurement of buildings; measuring points; reference lines; dimensional deviations; construction measurement; ISO 7976-2.