ASTM D Standard Test Methods for Pressure-Sensitive Adhesive- Coated Tapes Used for_化学_自然科学_专业资料。ASTM D ASTM D – Standard Test Methods for Pressure-Sensitive Adhesive-Coated Tapes Used for Electrical and Electronic Applications. ASTM D – Standard Test Methods for Pressure-Sensitive Adhesive- Coated Tapes Used for Electrical and Electronic Applications. This standard is a part.
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One arrangement, suitable for testing a number of tapes at the same time, has several rows of electrodes mounted on the inside of the cover of the humidity chamber as shown in Fig. Use only full rolls of tape. Increase the voltage from zero to breakdown at a uniform rate of 0.
Note that the use of different width tape specimens with the same unit loading has the potential to lead to signi? Yards per roll 5 weight of roll less core 3 length of specimen, in. The design of drum jaws makes it extremely difficult to identify accurately the gauge length between jaws. Remove each specimen from the roll in accordance with 5. D — 10 conditions for a minimum of 24 h before testing.
Satisfactory means of obtaining this relative humidity are described in Practice D Adequate safeguards for personnel and property shall be employed in conducting these tests. Apparatus and Materials Also, the solvent action is at room temperature, while often hot solvent action occurs in application.
Immediately release the tab. The apparatus must be capable of providing smooth, uniform jaw movement during testing, and the rate adjustable in increments necessary to produce strain rates that are speci? Paper, flat or creped. It is acceptable to use double-coated tape to reinforce gripping, by applying a thin piece of tape on each side of the? To obtain consistency, turn off the gas rapidly, such as by using a spring pinch clamp on the supply hose. Prepare two test specimens by spirally aastm a layer of tape on the brass rods using 2.
Except for determination of length of tape in a roll, remove and discard a minimum of three layers before removing tape for preparation of test specimens. Aastm tape wider than 6 mm 1? ASTM D covers several test methods for the characterization of tapes used in electrical applications. D — 10 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
This standard has been approved for use by agencies of the Department of Defense. Avoid juggling or touching the tape to direct it during the wind up. Rotate the rod so that the contact point is at the top of the rod see Fig.
This value does not correspond to the dielectric strength expected in service, but is a numerical value potentially useful for xstm by speci?
Holding the opposite end of the strip, drape the strip over the rod with the adhesive side contacting and adhering to the rod see Fig. If necessary, adjust the angle of the rod by successive trials until the proper angle for the particular tape is obtained.
After this application of pressure, cut the tape to a width of 13 mm 1? Calculate the average c1000 of bond aatm. Link to Active This link will always route to the current Active version of the standard.
Originally approved in Close the caliper jaws slowly so as to just touch the sides of the tape roll. Solidly ground all electrically conductive parts that any person might come in contact with during the test. A tape width of 25 mm 1 d100. Measure the width perpendicular to the edge with the steel scale at three approximately equally-spaced points along the length. After the tape is on the panel for 20 min Fabric, uncoated or coated.
Remove the winding tension and aastm the tape adjacent to the tissue strip that then serves as a benchmark for measurement of the awtm length. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Construct each specimen from two strips of tape fastened together to form a mm 1?
Immediately test the specimen to prevent misleading results due to drying of the sample. These tapes are classified as follows: D — 10 NOTE 5—A high response speed in the recording system is desirable, particularly when relatively high strain rates are employed.
ASTM D – Unwind Force of Tapes
If only the latter is obtained, also take load-time data. Adjust the initial length of the specimen between contact points to mm 4 in. At least 20 yards of tape must be on asrm test roll. The test is suitable for product development, speci?
Open the jaws of the calipers and slide them over the cut edges of the tape so that the scale shaft is parallel to the table. Zero the sensor and manually pull the leading edge of the tape and? In radius, In diameter,?