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Melvil Decimal System: 628.502

Wording: Technology > Engineering > Sanitary; Municipal > Environmental Chemistry > Not set > Not set

Dewmoji: šŸ’” > šŸ”© > šŸš½ > ? > ? > ?

0
Information
183,829
ā„¹ļø
1
Philosophy and Psychology
172,351
šŸ’­
2
Religion
443,755
šŸ™šŸ½
3
Social Sciences
952,115
šŸ‘«
4
Language
123,707
šŸ’¬
5
Mathematics and Science
297,296
šŸ”¬
6
Technology
692,375
šŸ’”
7
Arts and Recreation
669,452
šŸŽØ
8
Literature
891,726
šŸ“š
9
Biography and History
567,666
šŸ—æ
60
General Technology
6,663
šŸ’”
61
Medicine
229,772
šŸ’‰
62
Engineering
113,470
šŸ”©
63
Agriculture & Animal Husbandry
64,632
šŸŒ±
64
Home Economics
125,409
šŸ 
65
Business
109,750
šŸ‘”
66
Chemical Technology
13,629
šŸš€
67
Manufacturing
5,473
šŸ“¦
68
Handicraft and Occupations
14,823
šŸ”Ø
69
Building
8,754
šŸ‘·
620
Engineering
15,072
šŸ”©
621
Mechanical Engineering and Machinery
35,206
šŸ­
622
Mining Engineering and Mines and Mineral Resources
2,557
šŸ•³
623
Military Engineering and Marine Engineering
11,179
āš“
624
Civil Engineering
6,203
šŸŒ‰
625
Road and Railroad
3,572
šŸ›¤
626
--
29
šŸ¤·
627
Hydraulic Engineering
1,236
šŸŒŠ
628
Sanitary; Municipal
5,391
šŸš½
629
Other Branches
33,025
šŸŒæ
628.0
96
628.1
Water Supply Systems
1,545
628.2
Stormwater & Runoff Management
141
628.3
Sewerage & Wastewater Treatment
377
628.4
Waste Management and Disposal
417
628.5
Environmental Chemistry
1,033
628.6
1
628.7
Rural Water Supply & Sanitation Methods
70
628.8
--
18
628.9
Other Branches of Municipal Engineering
1,101
628.50
46
628.51
9
628.52
70
628.53
226
628.54
11
628.55
62
628.56628.57628.58628.59
628.500628.501
13
628.502
19
628.503628.504628.505628.506628.507
2
628.508
1
628.509
11
628.5020628.5021628.5022628.5023628.5024628.5025628.5026628.5027628.5028
19
628.5029

Wording

1922 Edition
Modern language
Emoji

"Far Friends"

MDS classes with significant recommendations overlap, excluding ones under the same top-level class.

None

What is MDS?

Melvil stands for "Melvil Decimal System," named after Melvil Dewey, the famous librarian. Melvil Dewey invented his Dewey Decimal System in 1876, and early versions of his system are in the public domain.

More recent editions of his system are in copyright, and the name "Dewey," "Dewey Decimal," "Dewey Decimal Classification" and "DDC" are registered trademarked by OCLC, who publish periodic revisions.

LibraryThing's MDS system is based on the classification work of libraries around the world, whose assignments are not copyrightable. MDS "scheduldes" (the words that describe the numbers) are user-added, and based on public domain editions of the system.

The Melvil Decimal System is NOT the Dewey Decimal System of today. Wordings, which are entered by members, can only come from public domain sources. The base system is the Free Decimal System, a public domain classification created by John Mark Ockerbloom. Where useful or necessary, wording comes from the 1922 edition of the Dewey Decimal System. Language and concepts may be changed to fit modern tastes, or to better describe books cataloged. Wordings may not come from in-copyright sources.

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