Polymeric standard test

The first summation Incorporates a block data set for observed monomeric standards the second is a null buffer the third are polymeric standards. Testing through the addition of monomers to polymer standards verified that the decomposition concept is again valid. Accuracy within the chromatogram is the error-determining step. Table I presents analysis of material after blending known quantities. 

Specifications and Standards Test Methods. Hydroxyethylcellulose is included in the Hst of materials that are in compHance with requirements of the U.S. EDA for use in adhesives and in resinous and polymeric coatings employed on the food-contact surfaces of metal, paper, or paperboard articles, and other substrates intended for use in food packaging as specified in CER 21. HEC made dispersible by cross-linking with glyoxal is cleared only as an adhesive and as a component of paper and paperboard in contact with food. It has not been cleared as a direct food additive. 

Zirconium propionate is a polymeric zirconium carboxylate its structure is illustrated in Fig. 10. Use of zirconium propionate markedly increases the adhesion of an ink applied to treated polypropylene film. Figure 11 compares zirconium propionate with titanium acetylacetonate, which is commonly regarded as the industry standard. The standard test method used in the ink industry is the so-called tape test . Sticky tape is placed on the printed film and pressure is applied by the operator s thumb. The tape is then pulled off, by hand, and the amount of ink removed is visually assessed. Although extremely crude, it can be, and is, used for control in the ink industry. 

Standard test method for rubber property-volume resistivity of electrically conductive and antistatic products Specification for electrical properties of conducting and antistatic products made from flexible polymeric material... 

ASTM D 4986 Standard Test Method for Horizontal Burning Characteristics of Cellular Polymeric Materials... 

ASTM D 5132, Standard Test Method for Horizontal Burning Rate of Polymeric Materials Used in Occupant Compartments of Motor Vehicles, Annual Book ASTM Standards, American Society for Testing and Materials, West Conshohocken, PA. 

Tensile properties are one of the most important single indications of the strength of a material. Mechanical properties of polymeric materials are often measured using standard test sample configurations. In these studies, a tensile dumbbell-shaped test specimen which conforms to ASTM D638 was used for all measurements. 

ASTM D1980, Standard Test Method for Acid Value of Fatty Acids and Polymerized Fatty Acids, the Annual Book of ASTM Standards, Vol. 06.03, 1998. 

ASTM E 2180 Standard Test Method for Determining the Activity of Incorporated Antimicrobial Agent(s) in Polymeric or Hydrophobic Materials ... 

ASTM D 3835-02, Standard Test Method for Determination of Properties of Polymeric Materials by Means of a Capillary Rheometer ... 

Standard Test Methods for Measuring Adhesion by Tape Test, ASTM 3359-87, American Society for Testing and Materials, 1988. Chapiro, A. Radiation Chemistry of Polymeric Systems, John Wiley and Sons New York, NY, 1961 Vol, XV, p 598. 

It has been noted that hypercrosshnked polystyrene does not adsorb proteins to the same extent as do conventional polystyrene or macroporous polystyrene [190]. Most probably, the open-work hypercrosshnked material does not expose a dense hydrophobic surface for the proteins to adsorb. The same is true for the marked inertness of both the new hypercrosshnked mesoporous poly-DVB materials and industrial hypercrosshnked sorbent MN-200 toward whole blood ceUs. Blood (50 mL) spiked with citric acid freely flows through a 5 mL column fiUed with beads of the above sorbents, contrary to many other coated carbon-type and polymeric hemosorbents tested under identical conditions, where blood coagulation and colurrm clotting were found to occur [359]. Indeed, the new mesoporous poly-DVB sorbent, without any additional modification of the surface, was found to be sufficiently biocompatible and not cause any early coagulation effect in a standard plasma recalcification test. 

ASTM D5214 Withdrawn Standard Test Method for Polyimide Resin Film for Electrical Insulation and Dielectric Application (Withdrawn 1995). Replaced by D2305 Standard Test Methods for Polymeric Films Used for Electrical Insulation... 

As a result, specified periods of time, specific disposal pathways, and standard test methodologies were incorporated into definitions. Standardisation organisations such as CEN, ISO, and ASTM were consequently encouraged to rapidly develop standard biodegradation tests so these could be determined. Society further demanded undebatable criteria for the evaluation of the suitability of polymeric materials for disposal in specific waste streams such as composting or anaerobic digestion. Biodegradability is usually just one of the essential criteria, besides ecotoxicity, effects on waste treatment processes, etc. 

Small-scale standard test methods these types of test methods have been developed based on qualitative experiences as well as on the understanding of fire stages and associated hazards. Relatively simple types of measurements are made for various fire properties of the polymeric materials for each fire stage. These types of standard test methods are useful for the performance-based fires codes which are being considered to augment or replace the prescriptive-based fire codes [33-35]. 

Both types of standard test methods for products in their end-use configurations and polymeric materials used for the construction of products are promulgated by various... 

Standard test methods have been developed for examining the ignition behavior of polymeric materials. Some test methods provide qualitative data, while others provide partial or complete quantitative data for the ignition resistance of materials (Sectimi 53.3, Tables 53.3 and 53.4). The following are examples of the common standard test methods used for examining the ignition resistance of materials ... 

The burning behaviors of polymeric materials are examined by measuring the release rates of material vapors, heat, and chemical compounds including smoke in the apparatuses specified in the standard test methods. From these measurements, the following fire properties are derived ... 

Many polymeric materials and products have been tested using this standard test method. The f values vary from 0 to 2,220, suggesting large variations in the fire spread behavior... 

D6692-01 Standard test method for determining the biodegradabihty of radiolabeled polymeric plastic materials in seawater... 

There are many other tests that can be carried out on adhesives using standard test methods for polymeric materials and these should be reviewed for the most appropriate procedure (see Standards on adhesion and adhesives. Appendix). 

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