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 14243 - English Version
Method of test for smoke point of kerosine and aviation turbine fuels
煤油及航空燃油發煙點試驗法 - 英文版

K-Chemical Industry

CNS 15319-8-2 - English Version
Sodium hydroxide for industrial use - Part 8-2: Determination of calcium content – Inductively coupled plasma optical emission spectrophotometry
工業用氫氧化鈉－第８-２部：鈣含量測定法－感應耦合電漿發光光譜分析法 - 英文版

Z7-General & Miscellaneous

CNS 4797-6 - English Version
Safety of toys − Part 6: Organic chemical compounds − Requirements
玩具安全－第6部：有機化合物－要求事項 - 英文版

B-Mechanical Engineering

CNS 4532 - English Version
Terms Relating to the End (Point) of Fasteners
結件端部詞彙 - 英文版

K-Chemical Industry

CNS 8139 - English Version
Chemical Reagent (4 - Amino - 3 - Hydroxy - 1 - Naphthalenesulfonic Acid)
化學試藥〔４胺（基）–３–羥（基）–１–萘磺酸〕 - 英文版

B-Mechanical Engineering

CNS 7206 - English Version
Terms Relating to the Manufacturing and Testings of Spring
彈簧製造及檢驗詞彙 - 英文版

H-Non-ferrous Materials & Metallurgy

CNS 8407-2 - English Version
Test methods for sealing quality of anodic oxide coatings on aluminium and aluminium alloys - Part 2: Phosphoric-chromic acid solution immersion test method
鋁及鋁合金之陽極氧化膜封孔度試驗法－第２部：磷酸－鉻酸溶液浸漬試驗法 - 英文版

B-Mechanical Engineering

CNS 5270-5 - English Version
Graphical Symbols for Fluid Power Diagrams-Pressure Control Valve
液壓、氣壓圖形符號–壓力控制閥 - 英文版

R-Ceramic Industry

CNS 15379 - English Version
Fine ceramics – Test method for water-purification performance of photocatalytic materials by measurement of forming ability of active oxygen
精密陶瓷—光觸媒材料水質淨化性能測定法：二甲基亞碸去除性能 - 英文版

R-Ceramic Industry

CNS 5480 - English Version
Suitable Gauging System for Diameter and Length of Conical Joints
錐形接頭直徑及長度規測系統 - 英文版

R-Ceramic Industry

CNS 5478 - English Version
Method of Test for Resistance of Glaze to Acid and Alkali for Porcelain Laboratory Apparatus
瓷質實驗儀器釉之酸碱抗力檢驗法 - 英文版

K-Chemical Industry

CNS 15319-3 - English Version
Sodium hydroxide for industrial use - Part 3: Determination of chlorides
工業用氫氧化鈉－第３部：氯化物含量測定法 - 英文版

K-Chemical Industry

CNS 2022 - English Version
Thymol Blue (Thymolsulfonphthalein)
化學試藥（麝香草酚藍） - 英文版

B-Mechanical Engineering

CNS 330 - English Version
Hand Wheels of Low Heat Insulation Materials
手輪（以低導熱材料製成） - 英文版

N-Agriculture, Food

CNS 14875 - English Version
Edible grapeseed oil
食用葡萄籽油 - 英文版

B-Mechanical Engineering

CNS 4544 - English Version
Limits of sizes and tolerances for ISO metric coarse screw threads (Tolerance quality: medium, tolerances: 5 H、6 H and 6 h、6 g)(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）（中品級–5Ｈ、6Ｈ、6ｈ、6ｇ）（標稱直徑1至68mm，螺距0.25至6mm） - 英文版

B-Mechanical Engineering

CNS 121 - English Version
Collar (Using Heavy Duty Set Screws)
頸圈（用螺絲銷、重型） - 英文版

K-Chemical Industry

CNS 1897 - English Version
Potassium Oxalate
過氯酸鉀（試藥） - 英文版

B-Mechanical Engineering

CNS 4547 - English Version
Limits of Sizes and Tolerances for ISO Metric Fine Screw Threads (Tolerance Quality: Medium,Tolerances: 6H and 6h、6g)(Diameters from 2.5 to 300mm and Pitches 0.35 to 6mm)
公制細螺紋限界尺寸及公差（ISO制）（中品級–6Ｈ、6ｈ、6ｇ）（標稱直徑2.5至300mm，螺距0.35至6mm） - 英文版

R-Ceramic Industry

CNS 7311 - English Version
Glass Filters for Chemical Analysis
化學分析用玻璃過濾器 - 英文版

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