NF B40-312
NF B40-312

NF B40-312

April 2020
Standard Current

Refractory products - Dense, insulating shaped products - Determination of ultrasonic propagation velocity in transmission

View the extract New: UPSELL service
Main informations

Collections

National standards and national normative documents

Publication date

April 2020

Number of pages

6 p.

Reference

NF B40-312

ICS Codes

81.080   Refractories

Print number

1
Replaced standards (1)
B40-312
B40-312
August 1989
Standard Cancelled
Refractory products. Dense, insulating shaped products. Determination of ultrasonic propagation velocity in transmission.

La présente norme s'inscrit dans le cadre de la caractérisation des produits réfractaires denses et isolants et permet de juger le comportement de ces matériaux.

ZOOM ON ... the Requirements department

To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:

  • mandatory clauses to satisfy,
  • non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document "ISO/IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents" as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!


What is the Redline format?
The Redline + service - standards comparator allows you to easily and simply identify major changes between the current standard and its last canceled version.

At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula.


The Redlines + service is offered to you on the collection of French standards in force, in French language and in HTML and PDF format.

For an overview of the service, click on View a standard in redline format
New: UPSELL service
  • The UPSELL service allows you to easily update one of your standards.
  • With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
  • Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ