ASTM D3776 PDF

Cutting Die, either square or round with an area of at D least 13 cm 2 or 4 in. Current edition approved July 1, Published August Replaces Sections 35 to 41 of Methods D — 64 Originally approved in Last previous edition approved in as D —

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Terminology 3. Current edition approved April 10, Published June Replaces Sections 35 to 41 of Methods D — 64 Originally published as D — Last previous edition D — 85 Summary of Test Methods 4.

Apparatus 5. Conditioning 6. It may be impractical to condition the specimens in Option A or nonconditioned testing may be agreed upon by the purchaser and supplier. When the full rolls or bolts of fabric cannot be properly conditioned in a reason- able time with available facilities, perform the tests without conditioning and report the actual conditions prevailing at the time of the test.

Such results may not correspond with the results obtained after testing adequately conditioned specimens in the standard atmosphere for testing textiles. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question.

The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the light of the known bias.

Consider rolls of fabric to be the primary sampling units. Consider the rolls of fabric in the lot sample as the laboratory sample and as the test specimens.

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ASTM D3776.pdf

Terminology 3. Current edition approved April 10, Published June Replaces Sections 35 to 41 of Methods D — 64 Originally published as D — Last previous edition D — 85 Summary of Test Methods 4.

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ASTM D 3776 Standard Test Method for Mass Per Unit Area (Weight) of Fabric1

Standards Subsctiption may be the perfect solution. Two operators in each laboratory each tested two specimens of each material for mass per unit area. In this procedure the complete laboratory sample is used as the specimen. Combining values from the two systems may result in non-conformance with the standard. Proceed to Checkout Continue Shopping.

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