ASTM International Introduces Proficiency Testing for Textiles

The ASTM Proficiency Testing Program has just expanded its existing Textiles Proficiency Testing Program to include
a new proficiency testing program on yarns and threads. This new PTP is an
industry driven quality assurance program for companies doing yarn and thread
component performance evaluations on a routine basis. This PTP will provide
participants with a statistical tool that will enable them to compare, improve
and maintain a high level of performance in the use of ASTM test methods with
other laboratories worldwide.
The test parameters in the ASTM yarn and thread PTP include the following ASTM
standard tests:
· D 1422, Test Method for Twist in Single Spun Yarns by the Untwist-Retwist
Method;
· D 1423, Test Method for Twist in Yarns by Direct-Counting;
· D 1907, Test Method for Linear Density of Yarn (Yarn Number) by the Skein
Method; and
· D 2256, Test Method for Tensile Properties of Yarns by the Single-Strand
Method (straight break strength and loop strength).
For each test trial, laboratory participants receive a different spool
containing 500 yards of a representative yarn or thread for testing, along
with interactive electronic data report forms and test instructions. Using the
specified ASTM program tests, participating laboratories conduct the tests of
their choice that they routinely run. Upon completion of testing, each lab
electronically submits their data to the ASTM PTP Center for use in generating
statistical summary reports. Final reports, which are electronically
distributed within a month of the data submission deadline, contain:
· All test results, coded to maintain PTP customer confidentiality;
· Statistical analysis of test data; and
· Charts plotting test results versus laboratory code.
Test results received through the program will allow laboratories to monitor
strengths and weaknesses to maintain accreditation status and compare test
results and calculated statistical parameters with labs throughout the world.
Test cycles will be held in June and December. Companies must be registered by
April 30 to be included in the June test trial. The annual subscription fee
for both trials in 2008 is $290 USD. For more information on registration and
fees, please contact Helen Mahy, ASTM International (phone: 610/832-9683;
hmahy@astm.org) or visit the proficiency test program for textiles section of
the ASTM Web site at the link below.