What is CNS Standards ?

CNS Standard is abbreviation of Chinese National Standard, the National Standards of the Republic of China (Taiwan) ;
They are administered by the Bureau of Standards, Metrology and Inspection of the Ministry of Economic Affairs.

The English versions CNS standards were translated directly from the openly-published Chinese CNS standard , in case of any divergence of interpretation, the Chinese versions CNS standards text shall prevail.

CNS standards are divided into 26 numbered categories, Detail see bellow:

CNS Standards 26 Categories:

A
Civil Engineering & Architecture
土木工程及建築

B
Mechanical Engineering
機械工程

C
Electrical Engineering
電機工程, 電子工程

D
Automotive & Aircraft Engineering
機動車及航太工程

E
Railway Engineering
軌道工程

F
Ship building Engineering
造船工程

G
Ferrous Materials & Metallurgy
鐵金屬冶煉

H
Non-ferrous Materials & Metallurgy
非鐵金屬冶煉

J
Nuclear Engineering
核子工程

K
Chemical Industry
化學工業

L
Textile Industry
紡織工業

M
Mining
礦業

N
Agriculture, Food
農業,食品

O
Wood Industry
木業

P
Pulp & PaperIndustry
紙業

Q
Environmental Management
環境保護

R
Ceramic Industry
陶業

S
Domestic Wares
日常用品

T
Medical Equipments & Appliances
衛生及醫療器材

X
Information & Communication
資訊及通信

Z-1
Industry Safety
工業安全

Z-2
Physical Distribution & Packaging
物流及包裝

Z-3
General & Miscellaneous
一般及其他

CNS Standards Index:

K-Chemical Industry

CNS 1976 - English Version
Sodium Peroxide
化學試藥（過氧化鈉） - 英文版

D-Automotive & Aircraft Engineering

CNS 7030 - English Version
Shapes and Dimensions of Fifth Wheel Coupling Pins for Semi-trailers
半拖車用第五輪聯結銷之形狀及尺度 - 英文版

K-Chemical Industry

CNS 8988 - English Version
Chemical Reagent(Dry Loss Determination)
化學試藥（乾失量測定） - 英文版

B-Mechanical Engineering

CNS 4486 - English Version
Fasteners – Surface discontinuities – Bolts, screws and studs for general requirements
螺釘表面瑕疵 - 英文版

Z7-General & Miscellaneous

CNS 13005 - English Version
Welding consumables − Solid wires and rods for TIG welding of mild steels, high strength steels and low temperature service steels
銲接材料－軟鋼、高強度鋼及低溫用鋼TIG銲接用實心線及填料棒 - 英文版

B-Mechanical Engineering

CNS 4548 - English Version
Limits of Sizes and Tolerances for ISO Metric Fine Screw Threads (Tolerance Quality: Coarse,Tolerances: 7H and 8g)(Diameters from 4 to 300mm and Pitches 0.5 to 6mm)
公制細螺紋限界尺寸及公差（ISO制）（粗品級–7H、8g）（標稱直徑4至300mm，螺距0.5至6mm） - 英文版

K-Chemical Industry

CNS 1559 - English Version
Diammonium hydrogenphosphate (reagent)
化學試藥（磷酸氫二銨） - 英文版

K-Chemical Industry

CNS 12835-4 - English Version
Plastics piping systems for the supply of gaseous fuels − Polyethylene (PE) − Part 3: Fittings
燃氣用塑膠配管系統－聚乙烯(PE)－第4部：閥 - 英文版

B-Mechanical Engineering

CNS 4545 - English Version
Limits of Sizes and Tolerances for ISO Metric Coarse Screw Threads (Tolerance Quality: Coarse,Tolerances: 7H and 8g)(Diameters from 3 to 68mm and Pitches 0.5 to 6mm)
公制粗螺紋限界尺寸及公差（ISO制）（粗品級–7H、8g）（標稱直徑3至68mm，螺距0.5至6mm） - 英文版

K-Chemical Industry

CNS 15832-4-2 - English Version
Method of test for paint components − Part 4-2: Analysis for components emitted from film − Volatile organic compounds
塗料成分試驗法－第4-2 部：塗膜釋出成分分析－揮發性有機化合物(VOC) - 英文版

B-Mechanical Engineering

CNS 7554 - English Version
Slip-on Welding Steel Pipe Flanges (10 kgf/㎠)
滑入熔接式鋼製管凸緣（10 kgf/㎠） - 英文版

B-Mechanical Engineering

CNS 4670-21 - English Version
Specified Items for Machine Tools - Gear Shapers (Rack Cutter Type)
工具機規範之項目–齒輪刨製機（齒條刨刀型） - 英文版

R-Ceramic Industry

CNS 3968 - English Version
Standard Classification of Refractory Silica Brick
矽質耐火磚分級標準 - 英文版

C-Electrical Engineering

CNS 61427-2 - English Version
Secondary cells and batteries for renewable energy storage − General requirements and methods of test − Part 2: On-grid applications
再生能源儲能用二次單電池及電池組－一般要求及試驗法－第2部：併網應用 - 英文版

K-Chemical Industry

CNS 14668 - English Version
Method of test for freezing point of aviation fuels(automatic phase transition method)
航空燃油凝固點相轉移自動測定法 - 英文版

T-Medical Equipments & Appliances

CNS 14104-5 - English Version
Prosthetics and orthotics - Limb deficiencies - Part 4: Description of causal conditions leading to amputation
義肢學與矯具學－肢體缺陷－第５部：截肢病患臨床狀態之描述 - 英文版

B-Mechanical Engineering

CNS 532 - English Version
Limits of Size and Tolerances for ISO Metric Coarse Screw Threads (Tolerance Quality:Fine,Tolerances:4H、5H and 4h)(Diameters from 1 to 68 mm and Pitches 0.25 to 6 mm)
公制粗螺紋限界尺寸及公差（ISO制）（細品級–4H、5H、4h）（標稱直徑1至68mm，螺距0.25至6mm） - 英文版

B-Mechanical Engineering

CNS 3-11 - English Version
Engineering drawings (Representation of diagrams)
工程製圖（圖表畫法） - 英文版

B-Mechanical Engineering

CNS 4670-25 - English Version
Specified Items for Machine Tools - Surface Grinders (Reciprocating Table Type)
工具機規範之項目–平面磨床（往復台式） - 英文版

Translated

B-Mechanical Engineering

CNS 13167 - English Version
Safety Standards for Construction of Spindle Shapers
立軸機之構造安全基準 - 英文版

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Chinese National Standards 中華民國國家標準 - Taiwan 台灣 -