How to Register
Download the documents on en.labthink.com. Fill out “Plastic Proficiency Testing Service Application Form”, and email the form to lab@labthink.com.
Service Charge
The proficiency service is totally free of charge.
Procedures
1. Participating laboratories submit the registration forms before deadline.
2. Labthink Packaging Safety Testing Center(“Testing Center” hereinafter) assign unique lab No. to each laboratory. The lab No. will be used for all activities including the final report and it should be kept confidential by labs.
3. The Testing Center sends lab No. test samples and SOP for Proficiency Service to each lab.
4. Each laboratory should perform the tests accordingto the SOP for Proficiency Service. When the tests are completed, fill out the “Test Results Submission Form” and email the form to lab@labthink.com. The subject of the email should in form of “Lab No. – Proficiency Service Test Results.
Please submitthe test results before November 15, 2020, any submission later than the datewill not be accepted.
5. The proficiency service report will be issued inthe second half of December, and sent to all participating laboratories by the end of December.
6. Only one standard should be selected for eachmethod and test item. Please refer to Appendix 1 for test items and teststandards.
Test Samples
All the test samples should passinspection for homogeneity and stability with satisfactory results. For barrierproperties test results, the statistical analysis and laboratory performanceevaluation are in accordance with CNAS-GL02: Guidance on Statistic Treatment ofProficiency Testing Results and Performance Evaluation.
Test Items & Test Standards
Appendix 1:
Test Items | Test Principal | Standard No. | Standard |
WVTR | Gravimetric Method
| GB/T 1037 | Test method for water vapor transmission of plastic film and sheet--Cup method |
ISO 2528 | Sheet materials -- Determination of water vapour transmission rate -- Gravimetric (dish) method | ||
ASTM E96/E96M | Standard Test Methods for Water Vapor Transmission of Materials | ||
YBB00092003-2015 | Determination of Water Vapour Transmission Rate - Method 1 | ||
Electrolytic Sensor Method
| GB/T 21529 | Determination of water vapour transmission rate for plastic film and sheeting - Electrolytic detection sensor method | |
ISO 15106-3 | Plastics -- Film and sheeting -- Determination of water vapour transmission rate -- Part 3: Electrolytic detection sensor method | ||
ASTM F3299 | (Coulometric P2O5 Sensor) Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using an Electrolytic Detection Sensor (Coulometric P2O5 Sensor) | ||
YBB00092003-2015 | Determination of Water Vapour Transmission Rate - Method 2 | ||
Infrared Sensor Method
| GB/T 26253 | Determination of water vapour transmission rate for plastics-film and sheeting - infrared detection sensor method | |
ISO 15106-2 | Plastics -- Film and sheeting -- Determination of water vapour transmission rate -- Part 2: Infrared detection sensor method | ||
ASTM F1249 | Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor | ||
YBB00092003-2015 | Determination of Water Vapour Transmission Rate - Method 4 | ||
Humidity Sensor Method
| ASTM E398 | Standard Test Method for Water Vapor Transmission Rate of Sheet Materials Using Dynamic Relative Humidity Measurement | |
ISO 15106-1 | Plastics -- Film and sheeting -- Determination of water vapour transmission rate -- Part 1: Humidity detection sensor method | ||
ORT | Differential Pressure Method
| GB/T 1038 | Plastics--Film and sheeting--Determination of gas transmission--Differential-pressure method |
ASTM D1434 | Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting | ||
ISO 15105-1 | Plastics -- Film and sheeting -- Determination of gas-transmission rate -- Part 1: Differential-pressure methods | ||
YBB00082003-2015 | Determination of Gas Transmission Rate - Method 1 | ||
Equal Pressure Method
| YBB00082003-2015 | Determination of Gas Transmission Rate - Method 2 | |
GB/T 19789 | Packaging Material Standard Test Method for Oxygen Gas Permeability Characteristics of Plastic Film and Sheeting Using a Coulometric Sensor | ||
ASTM D3985 | Standard Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor | ||
ISO 15105-2 | Plastics -- Film and sheeting -- Determination of gas-transmission rate -- Part 2: Equal-pressure method |
Value-added service
We wil lprovide consulting services regarding barrier testing data, to help participating laboratories to solve their problems encountered during tests.
Contact
Please contact us for more information andfurther questions.
Labthink Instruments Co. Ltd. Packaging Safety Testing Center
Attn: Ms. Wendy Hao
Tel: +86-531-58702735
Fax: +86-531-85062108
Email: lab@labthink.com
Add: 144, Wuyingshan Road, Jinan, Shandong, China
Zip Code: 250031
We sincerely invite laboratoriesto participate.