They might be formed in one country, dyed in another, and made into finished goods in yet another. To ensure that the same practices are used in this complicated international process, many companies follow agreed-upon standards related to industrial processes and the goods produced by them. These standards are called ISO textile testing standards. As mentioned earlier, the textile industry is complicated.
Around the world it employs millions of people. These workers follow many steps and use multiple processes to turn raw materials, including natural fibers like cotton and wool and synthetic or man-made fibers like polyester, into finished textile products like clothes and household goods.
Within the textile industry, following ISO standards can help to ensure consistent quality of the raw materials being used to make textiles, which in turn improves the final product. Adhering to ISO standards can also help lower operating costs and ensure quality management. Following ISO standards often involves inspection and testing at each stage of a process.
For example, raw materials might be tested, then dyed fabrics, and finally finished goods. Dimensional Change: A generic term for changes in length or width of a specimen subjected to specified conditions. The specimen is conditioned in the specified standard atmosphere and measured before subjection to the appropriate drying and washing procedure.
After washing, drying, conditioning and measuring the specimen, the change in dimension are calculated. Tumble dry: Clean the filter and place the test specimen and ballast in to the dryer and set the desired program and run up to dry. Hang each specimen by two corners with fabric length in the vertical direction. Hang each dripping wet specimen by two corners with fabric length in the vertical direction.
For drying procedure of line and Flat do not allow air directly on specimens as it may cause fabric distortion. Dimensional change of length and width separately to the nearest 0. BS EN Touch and close fasteners. Determination of peel strength. Experience our recommended textile testing equipment adherent to BS EN here. BS EN Manufactured articles filled with feather and down. Method for determining the compressibility index of clothing. BS EN Textiles.
Determination of tensile properties. BS EN Rubber and plastics-coated fabrics. Determination of tear strength. Trapezoidal method. BS EN Rubber- or plastics-coated fabrics. Low temperature tests. Bending test. BS EN Geotextiles and geotextile-related products. Determination of the compressive creep properties. Methods of test for nonwovens. Determination of tensile strength and elongation.
Wide-width tensile test. Determination of tensile properties of resin-impregnated yarn. Determination of friction characteristics. Inclined plane test. Determination of tensile creep and creep rupture behaviour. Tensile properties of fabrics. Determination of maximum force and elongation at maximum force using the strip method.
Determination of maximum force using the grab method. Seam tensile properties of fabrics and made-up textile articles. Determination of maximum force to seam rupture using the strip method. Determination of maximum force to seam rupture using the grab method. Tear properties of fabrics. Determination of tear force of trouser-shaped test specimens single tear method.
Determination of tear force of wing-shaped test specimens single tear method. Determination of tear force of tongue-shaped test specimens double tear test. Determination of flexural properties. Determination of tensile strength and elongation at break. Yarns from packages. Determination of single-end breaking force and elongation at break. Adhesive strength between constitutive elements. Methods of test. The crease is imparted on fabric by placing it between two glass plates and adding to gm weight on it.
After 1 min the weight is removed and the creased fabric is clamped on the instrument. Then it is allowed to recover from the crease. The recovery time may vary to suit particular creases. Usually it is 1 min. When crease recovers the dial of the instrument is rotated to keep the free edge of the specimen inline with the knife edge. The recovery angle is read from the engraved scale. In this way 10 tests are done in warp way and 10 for weft way. The mean value of recovery angle is taken and thus crease recovery is measured.
Tabulation Sl. Here the recovery angle for the given fabric sample is the middle of the range. So it is to say that the crease recovery of the sample fabric is average. Crease recovery angle in warp way is Method Fabric drape characteristics and behaviour are manifested in the appearance and fit of the garment and are usually assessed subjectively. Nevertheless, considerable research and development has been directed to the routine objective measurement and characterisation of drape and to relate drape, so measured, to objectively measured fabric mechanical properties, notably bending stiffness and shear stiffness.
Developed method of measuring drape by means of the F. It has a parallel light source that causes the shape of the draped fabric to be projected onto a circular paper disc. In practice, the contour of the shadow is often traced onto the paper and cut out for weighing. Converting these polar coordinates into rectangular co- ordinates simplifies the analysis between the shape factor and the drape coefficient. There are also fabrics which are simultaneously stressed in all directions during service, such as parachute fabrics, filters, sacks and nets, where it may be important to stress them in a realistic manner.
A fabric is more likely to fail by bursting in service than it is to break by a straight tensile fracture as this is the type of stress that is present at the elbows and knees of clothing. Sampling Lot Sample As a lot sample for acceptance testing, take at random the number of rolls of fabric directed in an applicable material specification or other agreement between the purchaser and the supplier.
Consider rolls of fabric to be the primary sampling units. Laboratory Sample As a laboratory sample for acceptance testing, take a full width swatch 1 m 1 yd long from the end of each roll of fabric in the lot sample, after first discarding a minimum of 1 m 1 yd of fabric from the very outside of the roll. From each roll or piece of circular knit fabric selected from the lot sample, cut a band at least mm 1 ft wide. Test Specimens Cut ten test specimens from each swatch in the laboratory sample with each specimen being.
The operating fluid may be a liquid or a gas. Two sizes of specimen are in use, the area of the specimen under stress being either 30mm diameter or mm in diameter. The specimens with the larger diameter fail at lower pressures approximately one-fifth of the 30mm diameter value.
However, there is no direct comparison of the results obtained from the different sizes. The standard requires ten specimens to be tested. The extension of the diaphragm is recorded and another test is carried out without a specimen present. The pressure to do this is noted and then deducted from the earlier reading.
Hand Driven Tester 1. Insert the conditioned specimen under the tripod, drawing the specimen taut across the plate, and clamp specimen in place by bringing the clamping lever as far to the right as possible.
Rotate the hand wheel, clockwise at a uniform speed of rpm until the specimen bursts. Stop turning the hand wheel at the instant of rupture of the specimen. Immediately after rupture and in rapid succession, release the clamping lever over the specimen.
Immediately release the strain on the diaphragm by turning the wheel counterclockwise to its starting position and record the pressure required to inflate the diaphragm tare pressure.
Record the total pressure required to rupture the specimen. Motor-Driven Tester 1. Inflate the diaphragm by moving the operating handle to the left. While the diaphragm is inflating, take hold of the latch that is located below, or to the right, of the operating 4. At the instant of rupture of the specimen, swing the latch as far as it will go to bring the operating handle to an idling neutral position. Immediately after rupture, and in rapid succession, release the clamping lever over the specimen.
Method Crockmeter In order to determine the color fastness of dyed or printed textiles or leather, this test is used for the determination of color fastness against rubbing, either under dry or under wet conditions. Features of Crockmeter 1. To determine the Color Fastness of Textiles. The equipment consists of a counter. It is provided with a flat peg. It also consists of an operating handle.
Tests the color fastness of the textile in a very accurate manner. It gives not only accurate but quick results also. The crockmeter consists of a rigid flat metallic platform on which the test specimen can be held firmly and a abrading finger which rubs against it under a specified load.
The platform is fixed over the base of the equipment and lies in a horizontal plane. BS ISO pdf download. Prosthetics and orthotics — Foot orthotics Uses , functions classification and description. No internationally accepted method is available to describe devices applied to the foot to address neuromusculoskeletal impairments.
This situation. BS EN pdf download. Heating boilers — Test code for heating boilers for atomizing oil burners. BS EN applies to the determination of the performances of heating boilers and combi boilers tired by liquid. ISO pdf download. Plain bearings — Wrapped bushes Part 6 : Checking the inside diameter.
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