GB/T 4702.2-2025
金属铬 硅含量的测定 高氯酸脱水重量法和钼蓝分光光度法
Chromium metal—Determination of silicon content—Perchloric acid gravimetric method and molybdenum blue spectrophotometric method
- 实施日期
- 2026-05-01
- ICS 分类
- 77.100
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 70,494 条
GB/T 4702.2-2025
Chromium metal—Determination of silicon content—Perchloric acid gravimetric method and molybdenum blue spectrophotometric method
GB/T 18656-2025
Industrial systems, installations and equipment and industrial products—Identification of terminals within a system
GB/T 29056-2025
Determination of impurity content in trichlorosilane for silicon epitaxy—Inductively coupled plasma mass spectrometry
GB/T 21013-2025
Machine tool—Hub flangs for plain grinding wheels
GB/T 15903-2025
Test methods for flame resistance of pressure sensitive adhesive tapes
GB/T 31553-2025
External-heating hot blast cupola furnace
GB/T 32151.33-2025
Requirements of the greenhouse gas emissions accounting and reporting—Part 33: Pigment production enterprise
GB/T 3294-2025
Test method of inspection for last sizes
GB/T 18037-2025
Basic technical requirements and design guidelines for live working tools, equipment and devices
GB/T 26181-2025
Hermetic motor-compressors for household and similar application heat pump water heaters using CO2 refrigerant
GB/T 3884.16-2025
Methods for chemical analysis of copper concentrates—Part 16:Determination of silicon dioxide content—K2SiF6 titrimetric method and gravimetric method
GB/T 3884.1-2025
Methods for chemical analysis of copper concentrates—Part 1 : Determination of copper content—Iodine titration method and electrogravimetric method
GB/T 16462.5-2025
Test conditions for numerically controlled turning machines and turning centres—Part 5:Accuracy of speeds and interpolations
GB/T 27028-2025
Conformity assessment—Guidance on a third-party certification system for products
GB/T 12162.1-2025
X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy—Part 1:Radiation characteristics and production methods
GB/T 21496-2025
Animal and vegetable fats and oils—Determination of sediment in crude fats and oils—Centrifuge method
GB/T 5525-2025
Vegetable fats and oils—Method for identification of transparency, odour and taste
GB/T 16848-2025
Accuracy of hourglass worms and worm gears
GB/T 31270.5-2025
Test guidelines on environmental safety assessment for chemical pesticides—Part 5: Leaching test in soil
GB/T 31270.7-2025
Test guidelines on environmental safety assessment for chemical pesticides—Part 7: Bioconcentration test