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Impact and Puncture Testing at Vartest

Impact and Puncture testing provides data on how well your product/material can withstand penetrative forces. Due to the vast variety of materials, properties and rate of energy delivered, there are multiple methods that fall under this category of testing. These tests are a necessity for industries including but not limited to auto, medical, and apparel. It is important to know the resistance of puncture of a product to determine if the specimen’s properties are suitable for the industry, it is in. For example, a backpack made of PVC should not be punctured by a sharpened pencil rustling around inside. If it is then the material is not strong enough for the planned end use. This is one of many problems that can be detected with Impact and Puncture Testing here at Vartest.

Vartest now has the following:

Which gives us a brand new instrument to run:

  • ASTM D2794 Standard Test Method for Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

    This test method is used to rapidly deform via impact a coating film and its substrate and for evaluating the effect of such deformation. Due to low reproducibility all testing for this method should be conducted in one laboratory.
  • ASTM D4226 Standard Test Methods for Impact Resistance of Rigid Poly (Vinyl Chloride) (PVC) Building Products

    We use this test method to determine the amount of energy needed to crack or break PVC (poly vinyl chloride) sheeting, or moulded test samples. The machine releases a freefalling standard weight which strikes an impactor with the specimen. This test could be used for quality control in addition to product research, and development.

    There are two configurations for this method:
    • Option A: Is used to determine the minimum energy required to cause a failure. I.e., hole, crack, split, shatter, or tear.
    • Option B: Is used to determine the minimum energy required to cause a brittle failure.
  • ASTM D5420 Standard Test Method for Impact Resistance of Flat, Rigid Plastic Specimen by Means of a Striker Impacted by a Falling Weight (Gardner Impact)

    We use this test method to determine the respective ranking of materials based on the energy required to crack or break flat, stiff plastic specimen under numerous conditions of impact of a striker impacted by a falling weight.

Vartest also runs:

  • ASTM F2878 Standard Test Method For Protective Clothing Material Resistance To Hypodermic Needle Puncture.  Vartest runs all options: 28 Gauge Hypodermic Needle, 25 Gauge Hypodermic Needle, and 21 gauge hypodermic needle.

    This test method is used to determine the force required to cause a hypodermic needle to penetrate through protective clothing material. There are three-gauge options for this test: -21, 25-, 28- gauge needles. These are used to evaluate puncture resistance of protective clothing. This test method is not a representation of all conditions. Some conditions not covered are stiffness of backing materials, presence of lubricants, and tension on the specimen.
  • ASTM D4833-07 Standard Test Method for Index Puncture Resistance of Geomembranes and Related Products

    This test method is an index test for determining the puncture resistance of geomembranes and related products. The use of this test is to establish a basis for uniform reporting. This test method is adequate for acceptance testing of commercial shipments of geomembranes and related materials.
  • ASTM F1342 Perpendicular Puncture Resistance of Protective Clothing

    We use this test method to determine the puncture resistance of protective clothing material by measuring the force required to cause a pointed puncture probe to penetrate through the specimen. This test method obtains three protocols:
    • Method A:
      • (1) Elastomeric materials
      • (2) Textiles
      • (3) Coated materials
    • Method B:
      • (1) Textiles
      • (2) Coated materials
    • Method C:
      • Watch this video to get a better understanding on the fixture for this test.
  • ASTM D2582 Puncture Propagation Tear

    The puncture-propagation of tear test measures the resistance of a material to snagging or tear. This test method covers plastic film and thin sheeting that may encounter end-use snagging hazards.
  • ASTM D751 Resistance Of Coated Fabric to Puncture

    We use this test method to test coated fabrics and rubber products made from coated fabrics. These goods are an essential part of commerce and require adequate testing.

    To gain a better understanding of what this method entails, peek at a failed test here.
  • ASTM F1306 Slow Rate Penetration Resistance of Flexible Barrier Films and Laminates

    Here at Vartest, this test method is used to the slow rate penetration resistance to a driven probe. The test is performed at room temperature by applying stress at a single velocity until a tear happens. The force, energy, and probe penetration to failure are calculated.
  • ASTM D5171 Impact Resistance of Plastic Sew-Through Buttons

    This test method determines the resistance of a button breaking under impact. A scenario would be ironing your shirt, or placing it at the bottom of a suitcase while packing.

High-Visibility Safety Apparel standard has been improved for 2020

The American National Standard for High-Visibility Safety Apparel (ANSI/ISEA 107) has been updated for 2020.

Companies wishing to represent their products as compliant will be a need to certify and/or recertify background materials, reflective tape, and garments to the 2020 standard.

Vartest is a member of the High Visibility Products Group of the International Safety Equipment Association (ISEA), the organization that created this updated standard. We’re well-positioned to test and offer consultation on the new standard. Contact us for more information or to get started.

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Vartest has a FAQ on UVC/UVGI and Textiles

Vartest Is Performing Accelerated UVC Testing Of Contract Textiles

  • Anticipates years of healthcare end use exposure in weeks.
  • Permits ranking and product development of woven, knitted, nonwoven, and coated fabrics.
  • Multiple evaluation methods are available:
    • Visual assessment of shade change.
    • Spectrophotometric assessment of shade change.
    • Embrittlement
    • Topcoat degradation including changes in gloss and surface chemistry and physical structure.
    • Change in anti microbial activity.
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Vartest awarded prestigious investment grant for developing advanced technologies

NYC wants to help manufacturers developing, learn about, and adopt innovative advanced technologies. Vartest has won a 2019 Advanced Material Grant from the Cornell Center for Materials Research, Invest-NY, and Ops21 to develop methods to analyze wool and cashmere fibers — Vartest will use this grant to standardize methods to detect and report the make-up and quality of important industrial materials.

More information is available from Cornell and from Ops21


Vartest CEO Receives Alumni of the Year Award at FIT!

We are proud to announce that Vartest President & CEO, Adam Varley, has been awarded the Alumni of the Year Award at the FIT TDM 2019 Dinner. The annual event is hosted through the Textile Marketing and Development Department, celebrating accomplishments of both alumni and seniors in the program. This award acknowledges Adam’s distinctive contributions toward the fashion and apparel industry through his achievements in textile testing.

DR. PREETI ARYA AND HER FIT CLASS VISIT VARTEST

Vartest hosted Dr. Preeti Arya and her Fashion Institute of Technology (FIT) Textile Development and Marketing class.  Students watched a PowerPoint focusing on the difference between Product Performance Specifications and Test Methods.

The students toured the lab seeing ASTM, AATCC, ISO, GB, ACT, BIFMA and Federal Standard 191 test methods for testing fiber, yarn, fabric (both coated and uncoated), used in apparel, aerospace, medical, military, couture, upholstery and active sportswear end uses.  Specialty testing markets like HVSA (High Visibility Safety Apparel) were reviewed in detail.

Vartest is glad to have built a relationship with the textile and apparel quality assurance and compliance executives of the future and continues to work with both FIT and its students.

Vartest Laboratories supported the Drexel effort to bring the National Network for Advanced Functional Fabrics Manufacturing to Philadelphia

“The U.S. Department of Defense has tapped Drexel University as a key leader in the creation of a $75 million national research institute that will support American textile manufacturers in bringing sophisticated new materials and textiles to the marketplace. [1]”

Vartest looks forward to being a technical resource for AFFOA projects, as part of the Fabric Innovation Initiative (FIN). This resurgence of cutting-edge textile technology in the North East harkens back to the birth of the US textile industry in the North East and the development of a significant textile technology department at MIT, but with a pleasant and welcome, modern high-tech twist.

[1] http://www.rle.mit.edu/fabric/

AFFOA

Vartest’s Outstanding Achievements and Service Recognized by AATCC

Adam Varley, Vartest’s Technical Director & COO was honored to be the recipient of the TCR Service Reward “In Recognition for His Service to AATCC Research Committees”. On Thursday, April 3rd 2014, Adam attended a luncheon at the Crowne Plaza Resort in Asheville, North Carolina, and was presented with this award for “his contribution toward the development of the AATCC Fiber ID Technical Supplement and the continuous updating of AATCC Test Methods 20 and 20A.”

AdamsAward

Vartest In The News

Vartest Laboratories, Inc. recently appeared on ABC’s 20/20 in a special titled “20/20 True Confessions: Dirty Little Secrets from the Dry Cleaners”. In the segment, 20/20 sampled 10 drycleaners in Manhattan with identical garments containing mustard, wine, and nail polish stains. Vartest Laboratories was chosen to perform a Spectrophotometric Analysis of the stains on the returned garments to discover just how many of the selected drycleaners were able to remove the stains the best.

The ABC special as well as the results of the investigation can be found here: 20/20 True Confessions

Learn more about Spectrophotometric Analysis
, AATCC 130, AATCC 135, AATCC 158, and many of the other tests offered by Vartest on the Vartest Laboratory website here: www.vartest.com

Vartest Offers Same Day Testing!

Vartest Laboratories now offers Same Day Service for select testing where it is feasible to do so. Such testing is subject to a 100% Premium Charge.

Check out the rest of the conditions as well as the tests we offer for Same Day Service on our Feasibility List.