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.
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For applications involving continuous immersion, the data obtained in short-time tests are of interest only in eliminating the most unsuitable materials or indicating a probable relative order of resistance to chemical reagents. The type of conditioning immersion or wet patch depends upon the end-use of the material.
Work Item s – proposed revisions of this standard. Prior to ASTM D testing specimen coupons were tested in the device using a strain gauge bonded to the bottom of the specimen coupon. Specimens can be weighed and measured prior to contact with the chemical reagent. Inspection Validating the specifications, value and safety of your raw materials, products and assets. Further testing is required to confirm the influence of BOD reduction on the coupon flexible yield stress.
Provisions are made for various exposure times, stress conditions, and exposure to reagents at elevated temperatures. Standard reagents are specified to establish results on a comparable basis. The test includes provisions for reporting changes in weight, dimensions, appearance and strength properties.
Chemical Compatibility ASTM D543
These practices include provisions for reporting changes in weight, dimensions, appearance, and strength properties. These practices include provisions for reporting changes in weight, dimensions, appearance, and strength properties. 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.
This test covers the evaluation of plastic materials for resistance to chemical reagents, simulating performance in potential end use environments. All test laminate coupons measured approximately mm in length by 25 mm in width and 5 mm in depth. The depth of BOD test coupons was significantly greater than the other chemical test coupons. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Unlike the BOD test coupons three-test coupon show relatively consistent stress-strain response.
Specific hazards statements are given in Section 7. Chemical reagent levels in the containers were maintained so that the coupons were fully submerged over the seven-day soaking period. Send us a request Need help or have a question? If the material will only see short exposures or will be used in close proximity and reagent may splash or spill on the material, the wet patch method of applying reagent should be used.
Chemical Compatibility ASTM D
Posted by Tabitha at 8: Possible reasons for the lower response of coupon a are the influence of BOD or a flaw in the test coupon cut from Plate Chemical reagents can include lubricants, cleaning agents, inks, foods, or anything else that the test material may be expected to come in contact with. While measuring the laminate coupons it was noted that the specimen edges were at a slight angle with respect to the depth of the material.
The choice of types and concentrations of reagents, duration of immersion or stress, or both, level of stress, temperature of the test, and properties to be reported are necessarily arbitrary. Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. Possible reasons for the lower response are influence of 0.
Historical Version s – view previous versions of standard. Auditing Consulting Sourcing Training. V543 should also be noted that two of the coupons 1 lb and c show much higher stress-strain response than a. Sunday, March 15, astm d Provisions are made for various exposure times, strain conditions and elevated temperatures.
ASTM D – 06 Standard Practices for Evaluating the Resistance of Plastics to Chemical Reagents
Active view current version of standard. Based on Figure 5. 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. The most typical physical strength properties evaluated are tensile strength and elongation. Test results were compared with the water control of the immersed tests.
Need help or have a question? After the agreed upon period of time, the specimens are removed and evaluated for desired properties such as change in weight, appearance or tensile properties vs. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Link to Active This link will always route to the current Active version of the standard.
The values given in parentheses are for information only. 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 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.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Variations in test coupon depth indicate that these test plates had greater variation in depth across the plate than the other test plates.
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Base the selection of test conditions on the manner and duration of contact with reagents, the temperature of the system, applied stress, and other performance factors involved in the particular application. BOD coupons were taken from Plates 12 and Further testing is required to confirm whether 0.
Details to know more click here http: A total of 30 laminate coupons were tested: