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WS/T 326.1-2010

Chinese Standard: 'WS/T 326.1-2010'
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BASIC DATA
Standard ID WS/T 326.1-2010 (WS/T326.1-2010)
Description (Translated English) Efficacy evaluation of toothpaste - Part 1: General principles
Sector / Industry Health Industry Standard (Recommended)
Classification of Chinese Standard C05
Classification of International Standard 11.020
Word Count Estimation 5,536
Date of Issue 2010-12-03
Date of Implementation 2010-12-03
Drafting Organization School of Stomatology, Sichuan University Huaxi
Administrative Organization ?PRC Ministry of Health
Regulation (derived from) ?Health-Communication [2010] 25
Summary This standard specifies the definition of toothpaste efficacy, evaluate the efficacy of the scope and requirements of the general principles and clinical trials. This section applies to claims to have some effect, and the physical and chemical properties, health and safety indicators in line with national standards for appropriate toothpaste products.

WS/T 326.1-2010
WS
HEALTH INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 11.020
C 05
Efficacy evaluation of toothpaste -
Part 1. General principles
牙膏功效评价 第1部分. 总则
ISSUED ON. DECEMBER 3, 2010
IMPLEMENTED ON. DECEMBER 3, 2010
Issued by. Ministry of Health of the People’s Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Terms and definitions ... 4 
3 Efficacy evaluation scope... 4 
4 General principles of efficacy evaluation ... 5 
5 Clinical trial requirements ... 6 
Foreword 
WS/T 326-2010 "toothpaste effect evaluation" is divided into the following parts.
- Part 1. General principles;
- Part 2. Guidelines for anti-caries efficacy evaluation;
- Part 3. Guidelines for efficacy evaluation on the control of dental plaque or
gingivitis;
- Part 4. Guidelines for efficacy evaluation on dentin hypersensitivity.
This is part 1 of WS/T 326.
Clinical trials in this Part references to the clinical trial’s design principle guidelines
"American Dental Association Scientific Committee - Accreditation Program - Clinical
Trial Program Guide, 2003" that was formulated by American Dental Association
(ADA).
This Part was proposed by Chinese Stomatological Association.
This Part was approved by Ministry of Health of the People's Republic of China.
Drafting organizations of this Part. Huaxi School of Stomatology of Sichuan University,
School of Stomatology of Peking University, and School of Stomatology of Capital
Medical University.
Main drafters of this Part. Hu Deyu, Cao Caifang, Wang Xiaoling, Yang Shenghui, and
Liu Xuenan.
Efficacy evaluation of toothpaste -
Part 1. General principles
1 Scope   
This Part of WS/T 326 specifies the definition of toothpaste effectiveness, efficacy
evaluation’s scope and general principles, and clinical trial requirements.
This Part applies to the toothpaste products which claim to have some effect, and of
which the physiochemical properties and health-safety indicators comply with relevant
national standards.
2 Terms and definitions 
The following terms and definitions apply to this document.
2.1 efficacy of anti-caries
The efficacy that the products, through inhibiting enamel demineralization or
promoting the remineralization of teeth, achieve to control the formation of dental
caries; or through reducing plaque bacterial and acid production so as to achieve to
prevent the generation of dental caries.
2.2 efficacy of control dental plaque or gingivitis
The efficacy that the products, through chemical composition, generate the inhibition
of plaque and (or) reduction of gingival inflammation such as swelling and bleeding.
2.3 efficacy on dentin hypersensitivity
The efficacy that the products have anti-dentin hypersensitivity symptoms (i.e. the
chemical and physical stimulation such as cold, hot, sour, sweet, probing causes tooth
to generate abnormal short and sharp pain) role.
3 Efficacy evaluation scope 
Anti-caries efficacy, inhibiting dental plaque and (or) reducing the efficacy of gingival
inflammation, anti-dentine hypersensitivity efficacy.
method consistency.
5 Clinical trial requirements 
5.1 When a product containing certain active ingredients is trialed for efficacy
evaluation for the first time, it shall be carried out at least two independent clinical
trials.
5.2 When a known-efficacy active ingredient is claimed to have new efficacy, it
requires at least two additional independent clinical trials.
5.3 The products containing the same active ingredient which has been validated by
clinical trial, shall prove its efficacy throu......
Related standard:   WS/T 326.2-2010  WS/T 326.3-2010
   
 
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