JIS

Glossary Term: JIS

Meaning: Japanese Industrial Standard

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From Wikipedia:

Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.

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The present Japanese Standards Association was established after Japan's defeat in World War II in 1945. The Japanese Industrial Standards Committee regulations were promulgated in 1946, Japanese standards (new JES) was formed.

The Industrial Standardization Law was enacted in 1949, which forms the legal foundations for the present Japanese Industrial Standards (JIS).

The Industrial Standardization Law was revised in 2004 and the "JIS mark" (product certification system) was changed.

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Pipe Size
Pitch  (Threads/Inch)
NPT/NPS
BSP
 1/16"
27
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 1/8"
27
28
 1/4"
18
19
 3/8"
18
19
 1/2"
14
14
 5/8"
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14

 
Pipe Size
Pitch  (Threads/Inch)
NPT/NPS
BSP
 3/4"
14
14
1"
11 1/2
11
1 1/4"
11 1/2
11
1 1/2"
11 1/2
11
2"
11 1/2
11
2 1/2"
8
11

 
Pipe Size
Pitch  (Threads/Inch)
NPT/NPS
BSP
3"
8
11
3 1/2"
8
11
4"
8
11
5"
8
11
6"
8
11
8"
8
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