GB/T 131-1993 《Mechanical drawings--Surface roughness symbols and methods of indicating》 Related products
GB/T 131-1993 is a standard for the representation of surface roughness in mechanical drawing. It specifies the symbols of surface roughness, including basic symbols, extended symbols, etc., and clearly defines the meaning of each symbol. Make clear the code composition and labeling rules, covering different asperity parameters represented by the combination of numbers, letters and symbols. Detail the position and method of surface roughness symbols, code numbers on part drawings and assembly drawings in mechanical drawing. The standard unifies drawing specifications, enabling engineers to accurately express the surface mass requirements of parts and ensure the accuracy of mechanical product manufacturing and assembly
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Abolish |
|---|---|
| CCS | J04 | ICS | 01.100.01 |
| Release Date | 1993-11-09 00:00:00 | Implementation Date | 1994-07-01 00:00:00 |
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Extended reading
- 1GB/T 14234-1993《Surface roughness for plastic parts》
- 2GB/T 13841-1992《Surface roughness for electronic ceramic parts》
- 3GB/T 15056-1994《Evaluation method on cast surface roughness》
- 4GB/T 1031-1995《Surface rouglness--Parameters and their values》
- 5GB/T 6060.1-1997《Roughness comparison specimens--Cast surfaces》
- 6GB/T 12472-2003《Geometrical Product Specifications(GPS)--Surface texture:Profile method--Surface roughness parameters and their values for wooden pieces》
- 7GB/T 7220-2004《Geometrical Product Specifications(GPS)--Surface texture:Profile method--Surfaceroughness--Terminology--Measurement of surface roughness parameters》
- 8GB/T 13580.12-1992《Determination of sodium andpotassium in the wet precipitation--Atomic absorption spectrophotometry》
- 9GB/T 6060.2-2006《Roughness comparison specimens - Ground, turned, bored, milled, shaped and planed》
- 10GB/T 6060.3-2008《Surface roughness comparison specimen － Part 3：Spark-eroded，shot-blasted，grit-blasted，lapped，filed and polished surface》