ASTM D CHEMICAL RESISTANCE. These practices cover the evaluation of all plastic materials including cast, hot-molded, cold-molded, laminated. Buy ASTM D PRACTICES FOR EVALUATING THE RESISTANCE OF PLASTICS TO CHEMICAL REAGENTS from SAI Global. ASTM D , Standard Practices for Evaluating the Resistance of Plastics to ASTM D , Standard Test Method for Abrasion Resistance of Organic.
Standard reagents are specified to establish results on a comparable basis. Prior to ASTM D testing specimen coupons were tested in the device using a strain gauge bonded to the bottom of the specimen coupon.
The strain fixtures and laminate coupons were placed in Plastic containers filled with chemical reagent. Certification Formally confirming that your products and services meet all trusted external and internal standards. This slight angle resulted in laminate coupons being moderately wider on one face top compared to bottom. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
The test includes provisions for reporting changes in weight, dimensions, appearance and strength properties. Standard reagents are specified to establish results on a comparable basis. Asrm values given in parentheses are for information only.
If the material will only see short exposures or will be used in proximity and reagent will splash or spill on the material, use the wet patch method of applying reagent. If used as a container or transfer line, immerse the specimens. Specimens can be weighed and measured prior to contact with the chemical reagent.
ASTM D – 14 Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents
All test laminate coupons measured approximately mm in length by 25 mm in width and 5 mm in depth. All weight and dimension changes were less than 0. The influence of coupon thickness on the flexural yield stress is not known at this time. R543 the agreed upon period of time, the specimens are removed and evaluated wstm desired properties such as change in weight, appearance or tensile properties vs. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries.
Need help or have a question? These practices include provisions for reporting changes in weight, dimensions, appearance, and strength properties.
It was found that two and half rotations produced the desired strain and that the strain level remained constant over a seven-day period. At the completion of the seven-day exposure period each coupon was visually evaluated and mechanically tested in accordance with ASTM D to determine if the stressed chemically exposed laminates mechanical properties changed. Provisions are made for various exposure times, stress conditions, and exposure to reagents at elevated temperatures.
Adtm coupons were taken from Plates 12 and Work Item s – proposed revisions of this standard. Provisions are made for various exposure times, strain conditions and elevated temperatures. Possible reasons for the lower response of coupon a are the influence of BOD or a flaw in the test coupon cut from Plate Assurance Testing Inspection Certification. This test covers the evaluation of plastic materials for resistance to chemical reagents, simulating performance in potential end use environments. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Sunday, March 15, astm d These practices include provisions for reporting changes in weight, dimensions, appearance, and strength properties. This standard and ISO Ashm 3 address the same subject matter, but differ in technical content and the results cannot be directly compared between the two test methods.
Specific hazards statements are given in Section 7. Variations in the stress-strain response of coupons after immersion in 0. Through xstm network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world.
Visual examination of a non-tested coupons cut from Plate 12 revealed that the coupon had an inherent plane of weakness in the middle of the test coupon Figure 5. If used as a container or transfer line, specimens should be immersed. This coupon was discarded and was not used in the study. Based on Figure 5. Send us a request Need help or have a question?
Chemical Compatibility ASTM D
ASTM D test for evaluating the resistance of laminate product in various chemical reagents were performed at the University of Waterloo. The type of conditioning immersion or wet patch depends upon the end-use of the material. It should also be noted that two of the coupons 1 lb and c show much higher stress-strain response than a. Depending upon the type of contact anticipated for the test sample, the exposure to the chemical agent could be immersion, wipe, spray, or saturated gauze.
Further testing is required to confirm whether 0. The depth of BOD test coupons was significantly greater than the other chemical test coupons. The specification of these conditions provides a basis for standardization and serves as a guide to investigators wishing to compare the relative resistance of various plastics to typical chemical reagents.
Chemical Compatibility ASTM D543
The low flexural yield stress results from Plates 11 and 12 could be due to the greater test specimen depth or inherent flaws in the test coupons Figure 5.
Chemical reagent levels in the containers were maintained so that the coupons were fully submerged over the seven-day soaking period.
Test results were compared with the water control of the immersed tests. Work Item s – proposed revisions of this standard.