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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Any reference to averaging of measurements refers to the averaging of measurements on a single roll and not to the average of all sample rolls.
Construct the roller so that the weight of the handle is not added d0100 the weight of the roller during use. Use stainless steel Type or as prescribed in Speci? Originally asmt in Condition each specimen as described in Section 8.
Condition elastomeric backings of Class 2 tapes for cold temperature tests by placing prepared specimens or rolls of tape in a cold room for at least 2 h at the desired temperature example temperatures: The amount of each is a predicator of the difficulty one might experience in handling strips of any length of unwound tape during their application. It is limited in that adhesion to itself or backing only are considered, while in use tapes d10000 generally adhered to various surfaces.
After conditioning, measure the relaxed length of the specimen to the nearest 2 mm or 0.
Place the tape on a smooth clean surface, adhesive side up, or suspend it from one end in free air. Apparatus and Materials These test methods are similar to IEC —3, but may differ sometimes in some details.
ASTM D – Testing equipment according to ASTM D | Rycobel
Take a rubber-covered steel roller as described in Rods of other diameters are acceptable if agreed upon between the manufacturer and the purchaser. Run off approximately mm 1 ft of tape for each determination.
By measuring the insulation resistance of tape samples in contact with speci? Construct f1000 specimen from two strips of tape fastened together to form a mm 1?
Zero the sensor and manually pull the leading edge of the tape and? D — 10 FIG. D — 10 Make sure no air bubbles are trapped. Wider samples can be used, however pressure sensitive adhesives which are wider than 1 inch may have more variability in the unwind force.
The standard calculation for the unwind force is given in newtons per 10mm width of tape or ounces of force per inch width. Metres per roll 5 weight of roll less core 3 length of specimen, mm weight of specimen 3 1 Solidly ground all electrically conductive parts that any person might come r1000 contact with during the test.
If this process applies a preload on the specimen, do not change the balance adjustment to compensate for it. Conduct one test on each roll. Take readings 15 s after impressing to V dc between the electrodes. This is usually done by combining one standard?
The usefulness of this test method is primarily for speci? NOTE 5—A high response speed in d11000 recording system is desirable, particularly when relatively high strain rates are employed.
This procedure results in slightly lower and more variable values. NOTE 4—It is possible that values obtained in dry ice chambers and walk-in cold rooms will not be equivalent.
Pass the adhesion astk prescribed in It is desirable, but not essential, that this instrument automatically record this distance as a function of the load on the test specimen, or of the elapsed time for the start of the test, or both.
As the winding progresses to the lower end of the rod, insert a short length of lens tissue 3 mm 1? There shall be no obstructions in the path between the platform and the spindle. Zero the testing machine to d1000 for the weight and frictional drag of the test? With v1000 at room temperature, totally immerse the specimens vertically in a speci? For tapes having a backing thickness greater than 0.
Breaking Strength and Elongation at Low Temperatures. The driven 7 The sole source of supply of the variable-speed unwind machine meeting these requirements known to the committee at this time is Chemsultants International, D10000 Drive, Mentor, OH Yards per roll 5 weight of roll less core 3 length of specimen, in.
Method A—Fast Rate of Removal Clamp this portion of the exposed panel in the lower jaw of the testing machine and place the r1000 end of the tape in the upper jaw. If a value for measurement is followed by a value in inch-pound or English units in parentheses, it is likely that the second value will only be approximate and it is for information only.
For tape wider than 6 mm 1?