hat changed and their 1987-based components, table 1c-2 Codes applicable to the Survey of Minority-Owned Business Enterprises: 61 U.S. by legal form of organization 62 U.S. by receipts size of firm 63 UISby employment size o -Ddisk full<>R6002 - floating point not loaded R6001 - null pointer assignment xDOMAIN 2UFr eUFr;%(N,xFrh"ӥ> E9E9dnjrRdd dI $K , Standard Industrial Classification Each of the establishments covered in tbe census was classified in 1 of 459 manufacturing industries in accordance with the industry definitions in the 1987 Standard Industrial Classification Manual. The 1987 edition of this manual represents a major revision for manufacturing industries from the 1972 edition and its 1977 supplements. Appendix A of that manual notes the revisions in the four-digit industry levels between 1972/77 and 1987. An industry is generally defined as a group of establishments producing the same product or a closely related group of products. The product groupings from which industry classifications are derived are based on considerations such as similarity of manufacturing processes, types of materials used, types of customers, and the like. The resulting group of establishments must be significant in terms of number, value added by manufacture, value of shipments and number of employees. The system operates in such a way that the definitions progressively become narrower with successive additions of numerical digits. For 1987, there are 20 major groups (2-digit SIC), 139 industry groups (3-digit SIC), and 459 industries (4-digit SIC). This represents an expansion of four-digit industries from 452 in 1972/1977 and a reduction of three-digit groups from 143 in 1972/77. Product classes and products of the manufacturing industries have been assigned codes based on the industry from which they originate. There are about 11,000 products identified by a 7-digit code. The 7-digit products are considered the primary products of the industry with the same 4-digits. Accordingly, an establishment is usually classified in a particular industry on the basis of its major activity during a particular year, i.e., production of the products primary to that industry exceeds, in value, production of the products primary to any other single industry. In a few instances, however, the industry classification of an establishment is not only determined by the products it makes but also by the process employed in operations. Refining of nonferrous metals from ore or rolling and drawing of nonferrous metals (processes which involve heavy capitalization in specialized equipment) would be classified according to the process used during the census year. These establishments wouyld be "frozen" in that industry during the following ASM years.ate. There are about 11,000 products identified by a 7-digit code. The 7-digit products are considered the primary products of the industry with the same 4-digits. Accordingly, an establishment is usually classified in a particular industry on the basis of its major activity during a particular year, i.e., production of the products primary to that industry exceeds, in value, production of the products primary to any other single industry. In a few instances, however, the industry classification of an establishment is not only determined by the products it makes but also by the process employed in operations. Refining of nonferrous metals from ore or rolling and drawing of nonferrous metals (processes which involve heavy capitalization in specialized equipment) would be classified according to the process used during the census year. These establishments wouyld be "frozen" in that industry during the following ASM years.2) 11 State (data correspond to published table 3) 12 State (data correspond to published table 4) 20 U.S. (data correspond to published table 2) 21 U.S. (data correspond to published table 3) 22 U.S. (data correspond to published table 4) Codes applicable to the census of manufactures industry series: 51 1987-based SIC, corresponding to table 1a-1 and 1b-1 52 1972-based SIC, corresponding to table 1a-2 and 1b-2 53 1987 SIC's that changed and their 1972-based components, table 1c-1 54 1972 SIC's that changed and their 1987-based components, table 1c-2 Codes applicable to the Survey of Minority-Owned Business Enterprises: 61 U.S. by legal form of organization 62 U.S. by receipts size of firm 63 U.S. by employment size of firmdisk full<>R6002 - floating point not loaded R6001 - null pointer assignment xDOMAIN error ySING error zTLOSS error : MATH - floating-point error: einvalid gdivide by 0 hoverflow ns