ДСТУ CEN/TR 14245:2022 Цемент. Рекомендації щодо застосування EN 197-2. Оцінювання та перевірка сталості характеристик (CEN/TR 14245:2020, IDT)

ДСТУ CEN/TR 14245:2022
(CEN/TR 14245:2020, IDT)

Цемент. Рекомендації щодо застосування EN 197-2. Оцінювання та перевірка сталості характеристик

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

Introduction to this Guidelines Document

1 Scope

2 Normative references

3 Terms and definitions

4 Factory production control

4.1 General requirements

4.1.1 Concept

4.1.2 Works' quality documentation

4.1.3 Quality management system

4.1.4 System of documentation

4.2 Internal quality control

4.2.1 Process control

4.2.2 Measuring and testing

4.2.3 Handling, storage, packaging and delivery

4.3 Autocontrol testing of samples

4.3.1 Sampling and testing

4.3.2 Corrective action

4.3.3 Measuring and test equipment for autocontrol testing

4.3.4 Quality records

5 Tasks for the purpose of certification

5.1 Assessment of the performance of the cement

5.2 Initial inspection of the manufacturing plant and of factory production control

5.2.1 Inspection of a new factory

5.2.2 Inspection of an existing factory

5.2.3 Criteria for the assessment of the production equipment

5.2.4 Criteria for the assessment of laboratories

5.3 Continuing surveillance, assessment and evaluation of factory production control

5.3.1 Inspection of the factory and the factory production control

5.3.2 Evaluation of the results of autocontrol testing of samples

5.4 Audit-testing of samples taken at the factory/depot

5.4.1 Sampling

5.4.2 Testing

5.4.3 Evaluation of test results

5.5 Reports

5.6 Actions to be taken in the event of non-conformity

5.6.1 Following inspection of the factory production control and evaluation of the results of autocontrol testing

5.6.2 Following evaluation of the results of the audit-testing

6 Procedure for certification of constancy of performance of the product

Annex A (normative) Evaluation of the representativeness and the accuracy of the 28 day strength test results

6.1 General

6.2 Sets of results considered

3 Evaluation procedure

A.3.1 Introduction

A.3.2 Symbols

A.3.3 Evaluation of whether set A and set B belong to the same population (sampling error check)

A.3.4 Comparison between set B and set C in order to check the accuracy of the autocontrol testing (testing error check)

A.3.5 Masonry cement

A.3.6 Calcium aluminate cement

Annex B (informative) Procedure for certification of constancy of performance of cement

Bibliography