条形码规范(1.04)

上海通用汽车有限公司零部件条形码规范 The v ehicle components barcode standard of SGM Co. Ltd (1.04 版) 1． 总则 General Principles 1.1 范围：:Area 本规范包含的条形码适用于 SGM 汽车零部件验证系统(VCVS)和可追溯性系统。 The barcode included in this standard is valid for all the VCVS(Vehicle Components verification System) and traceability system of SGM. 2. 标签 Label 2.1 条形码 Barcode： 条形码格式为 C39 码 或 C128 码，可数字字母混合。它的数据字符集包含 38 个字符： 0-9，A-Z，- 和空格。(推荐使用 128 码) The format of barcode is C39 or C128, which can be mix of the numbers and characters . Its media character set includes 38 character:0-9,a-z and space.(Recommendition:C128) 2.2 条形码密度和尺寸：Density and Size 条形码的重要参数是窄元素的平均宽度(条形和空格)与宽元素平均宽度的比例，可根据特殊应用要求改变条码高度。除非另有说明，条码最小高度必须为 9.5 MM 。 用于 SGM 汽车零部件验证系统(VCVS)和可追溯性系统部件的窄元素平均宽度必 须在 0.21MM 和 0.3MM 范围之内，由于工艺能力的允许误差在正负 0.025MM.宽窄元 素比例必须为 3：1，并允许在 2.8：1 和 3.2：1 范围内变化. 注：根据条形码 15 位信息格式，最小长度必须为 43MM。 The vital parameter of code is the proportion of the average width of narrow element and wide element, which may change the barcode height according to the certain demand. Hence, if no other specify , the lowest height of barcode must be 9.5 MM. All the average width of narrow element available in VCVS and traceability system must fall in the scale between 0.21MM and 0.3 MM. Because the craft ability allows the difference of 0.025 more or less. The proportion of narrow element must be 3 to 1, and allows the variation between 2.8 to 1 and 3.2 to 1. Note: according to the 15 digit information format of barcode, the shortest length must be 43 MM...