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Changing yarn weight or needle size can have a significant impact on the finished project, so standardized systems have been spread about, as well as conversion systems for regional standards (especially needle sizes). [1] Yarn weight is important in achieving the correct gauge or tension for a particular project and can help with yarn ...
The machine's gauge is expressed by the number of needles needed to achieve that gauge. B – Used for hand, mechanical, or modern Electronic Flat Machines (Stoll, Shima, Protti, etc.), where gauge is measured in 1-inch (2.5 cm) increments. The machine's gauge is again measured by the number of needles required to achieve that number.
However, the term gauge, abbreviated G or ga, typically refers to the Birmingham gauge for hypodermic needles. [1] The French scale measures and is proportional to the outer diameter of a catheter, with 1 French (Fr) defined as 1 ⁄ 3 millimeter, making the relationship: 1 mm = 3 Fr.
The length of all sewing machine needles has been standardized and does not require a separate code. The metric designation is the actual needle diameter in hundredths of a millimeter. [3] The following chart gives a comparison of the two systems: [4]
The third needle type consists of circular needles, which are long, flexible double-pointed needles. The two tapered ends (typically 5 inches (130 mm) long) are rigid and straight, allowing for easy knitting; however, the two ends are connected by a flexible strand (usually nylon) that allows the two ends to be brought together.
The Craft Yarn Council of America (CYCA), an industry trade association, has collated a table of crochet hook and knitting needle sizes from de facto industrial standards and elicited the cooperation of its member organizations in adopting them to regularize sizing in the United States. The listed gauge systems are also widely used internationally.
Thread weight conversion table. Conversion From To Method Weight: Denier: ... Sewing needle; Staple (textiles) Stitch (textile arts) Notes
Hypodermic needles are available in a wide variety of outer diameters described by gauge numbers. Smaller gauge numbers indicate larger outer diameters. [5] Inner diameter depends on both gauge and wall thickness. The following chart shows nominal inner diameter and wall thickness for regular-wall needles.
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