Labthink Permeability Proficiency Service Spring 2014 was officially opened

Currently various standards and test methods are applied in the permeability testing of films. However, there is no uniform standard for the accuracy of the test data. As a result, it is hard to evaluate the competency of the testing organizations or laboratories, which has become an obstacle in quality control for the film manufacturers and users. In order to provide a valuable reference for the data accuracy, Labthink launched the permeability proficiency service, which was officially opened on March 1, 2014. Labthink Permeability Proficiency Service Spring 2014 is totally free of charge. The test data will be kept confidential.

All the participants can visit Labthink official website, www.labthinkinternational.com.cn and download Permeability Proficiency Service Application Form Spring 2014, Sample Status Confirmation Form and Test Results Form from March 1, 2014 to May 1, 2014. The application form should be completed and sent to lab@labthink.cn. On receipt of the application forms, Labthink Packaging Safety Testing Center will send a unique test lab No., test samples and SOP for Permeability Proficiency Service to all the participants. The tests should be performed according to the instructions in SOP.  The Sample Status Confirmation Form and Test Results Form should be completed and sent to lab@labthink.cn before May 30, 2014. The permeability service report will be issued in the middle of June, 2014 and sent to the designated email addresses of all the participants.

Consulting service will be provided to the laboratories that submit abnormal testing data in the permeability service. The consultants invited by Labthink will help solve the problems faced by the related participants.

All the organizations and laboratories in related industries are welcome to participate in this event.

For further information, please visit the following link.

http://www.labthinkinternational.com.cn/testing/permeability-proficiency-service.html

Labthink Permeability Proficiency Service

1. Background and Introduction

Scientific data is usually obtained through measurements. The competency of a laboratory is evaluated by the accuracy of its testing data. For the same test item, distinct test principles or test methods may be used by the test operators. However there is no one uniform standard by which the accuracy of the test results can be evaluated. Some laboratories which own the testing instruments to test OTR and WVTR of the films also face this problem. It has become an obstacle in R&D, quality control and standard drafting for the film manufacturers. By now, most of the laboratories evaluate their test results through inter-laboratory comparisons.

Today the testing technology and testing instruments for barrier properties are developing dramatically. In order to provide a valuable reference value for data accuracy, Labthink will launch its bi-annual permeability proficiency service since 2014. Some experts in packaging industry are invited as our consultants to guarantee the accuracy and fairness of this event..

Sincerely invite you to participate in Labthink Permeability Proficiency Service!

2. Registration Time

From March 1, 2014 to May 1, 2014

3. Test Items & Test Standards

Test Item	Test Method	Test standard
Water Vapor Transmission	Gravimetric method	ISO 2528:1995	Sheet materials--Determination of water vapour transmission rate -- Gravimetric (dish) method
		ASTM E96/E96M-12	Standard Test Methods for Water Vapor Transmission of Materials
	Electrolytic detection sensor method	ISO 15106-3:2003	Plastics -- Film and sheeting -- Determination of water vapour transmission rate --Part 3: Electrolytic detection sensor method
	Infrared detection sensor method	ISO 15106.2:2003	Plastics -- Film and sheeting -- Determination of water vapour transmission rate -- Part 2: Infrared detection sensor method
		ASTM F1249-13	Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor
	Humidity detection sensor method	ASTM E398-13	Standard Test Method for Water Vapor Transmission Rate of Sheet Materials Using Dynamic Relative Humidity Measurement
		ISO 15106.1:2003	Plastics -- Film and sheeting -- Determination of water vapour transmission rate -- Part 1: Humidity detection sensor method
Oxygen Gas Transmission	Differential- pressure method	ASTM D1434-82(2009)e1	Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting
		ISO 15105.1-2007	Plastics -- Film and sheeting -- Determination of gas-transmission rate --Part 1: Differential-pressure methods
	Equal-pressure method	ASTM D3985-05(2010)e1	Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor
		ISO 15105-2:2003	Plastics -- Film and sheeting -- Determination of gas-transmission rate -- Part 2: Equal-pressure method

4. How to Register

Please download Permeability Proficiency Service Application Form Spring 2014 (Please find it in Document). Please complete the application form and send it to lab@labthink.cn before the deadline for registration, May 1, 2014.

For more information about Labthink Permeability Proficiency Service, please visit 

http://www.labthinkinternational.com.cn/testing/permeability-proficiency-service.html