Recommended Minimum Requirements for Plumbing in Dwellings and Similar Buildings: Final Report of Subcommittee on Plumbing of the Building Code Committee, July 3, 1923 ... Bureau of Standards

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Traps and clean outs
26
Manholes___
27
Water supply and distribution
28
Watersupply protection
29
Plumbing fixtures__
30
Ventilation of rooms and fixtures_
31
Soil waste and vent pipes_
32
Soil and waste stacks fixture connections_
33
Traps protected vents_
34
Branch and individual vents__
35
Circuit and loop vents
36
House drains and sewers_
37
Material_
38
Combined storm and sanitary sewer systems
39
Stormwater drains___
40
Defective conductor pipes
41
Refrigerator safe and special wastes
42
Maintenance__
43
Inspections and tests__
44
b Air test__
45
Defective work
46
EXPERIMENTAL INVESTIGATIONS STANDARDIZATION ADMINISTRATION AND COMMENTS Chapter 5 Experimental investigations
47
Unit of fixture discharge
48
Peak loads in house drainage systems
49
Capacities of house drains
50
Characteristics of fall of water in partially filled stacks
51
Vent requirements_
52
Running trap
53
Effect of wind blowing over stack tops_
54
Physics of plumbing systems Report of experimental
60
Experimental system for rating watercloset discharges
67
Experimental supply and discharge systems for rating waterclosets
74
2025 Discharge curves for typical watercloset installations__ 7577
75
Supply line used for flush valves in rating watercloset discharges__
77
2738 Discharge curves for typical watercloset installations 7888
78
Supply tanks at top of stack for determining the capacity of fittings and stack
102
Pitot tube for measuring velocity of water at base of stack_
107
Curve showing velocity of fall in a 3inch stack
108
Pressure curves near base of a 3inch stack with house drain volume rate of water 66 gallons per minute
111
Recording pressure gauge
112
Maximum and minimum pressure gauge
113
Experimental stack and vent system for determining air movements in a plumbing system___
115
Pressure curve for a 3inch stack water introduced at rate of 200 gal lons per minute_ ____
116
Pressure curve for a 2inch stack water introduced at rate of 90
117
Pressure curve for a 2inch stack water introduced at rate of 45
118
Chart for determining permissible length of main vent for a 3inch soil or waste stacks of known capacity
123
Experimental rain leader system
125
Submerged outfall of house sewer
127
Apparatus for producing air current over stack top
128
Illustration of trail discharge from a flat bottom fixture___
131
Fixture and waste pipe to study effect of length of horizontal pipe on selfsiphonage
132
Fixture and waste pipe to study effect of inclined waste pipe on self siphonage__
135
Fixture and waste pipe to study effect of combined horizontal and inclined waste pipes___
138
Diagram to illustrate the effect of horizontal waste pipe on velocity and scour
139
Diagram to illustrate the effect of a vertical section of waste pipe on velocity and scour
140
Diagram to illustrate type of venting liable to clog
142
Simplification of plumbing construction__
151
Separate floor layouts tested_ _
152
Arrangement of bathroom group of fixtures tested
153
Illustration crowfoot fittings
154
Arrangement of bathroom and kitchensink group tested
155
Arrangement of stackvented bathroom group tested_
156
Alternate arrangement of bathroom and kitchensink group tested__
157
Arrangement of stack vented bathroom and kitchensink group tested
158
Tests of complete plumbing installations_
159
Test conditions
161
Notation___
162
Test installation No 1
164
Experimental plumbing system showing arrangement of pipes and location of fixtures
165
Return bend used in house sewer_
166
Conclusions_
167
Test installation No 2
168
Experimental plumbing system showing arrangement of pipes and location of fixtures
169
Change in arrangement of basement fixtures of Figure 78_
172
stallation No 3
173
Experimental plumbing system erected for demonstration purposes
174
General conclusions__
176
Recommended construction details_
177
Approved design for stack and group vented fixtures__
178
Approved design showing one alternative arrangement of waste pipes for Figure 82____
179
Approved design for stackvented and groupvented fixtures
180
Approved design for lower floor
181
Approved design for duplex bathroom group_
182
Approved venting for lavatory and watercloset
183
Approved forms of venting single fixtures__
184
Types of onestory onefamily houses showing required venting
185
Types of twostory onefamily houses showing required venting
186
Types of twostory twofamily houses showing required venting
187
Standardization of plumbing materials
188
Administration_
190
Enforcement of plumbing regulations_
191
State plumbing laws___
192
certificates of competency 193
193
Explanatory notes and comments
194
Adequacy of water supply
195
Pressure relief for waterheating apparatus__
196
Velocity of waste water in drainage systems
198
Limitations to the use of clean outs___
199
Air circulation in plumbing
200
Admission of destructive substances
201
Omission of the main house trap___
202
Plumbing as related to building design
203
Vitrified clay pipe__
204
Castiron pipe
205
Appendix A Minority report__
207
A study of air currents in a horizontal waste pipe
222
Arrangement of piping for the study of air currents in horizontal waste pipes
223
Experiment A Diffusion of carbon dioxide in a 13inch horizontal branch connected with a vertical stack Time 20 hours no forced draft _ _ _ _
227
Experiment C Diffusion of carbon dioxide in a 1inch horizontal branch connected with a vertical stack Time 44 hours no forced draft
228
Experiment F Evaporation of water in a 12inch horizontal branch connected with a vertical stack Time 46 hours no forced draft
231
Experiment H Diffusion of carbon dioxide in 11 1 and 2 inch horizontal branches connected with vertical stacks__
232
Standard specifications of the American Society for Test
234

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Σελίδα 4 - LO Howard, chief of the Bureau of Entomology of the United States Department of Agriculture, and...
Σελίδα 248 - Inspector, free of cost, all reasonable facilities to satisfy him that the rivets are being furnished in accordance with these specifications. All tests and inspection shall be made at the place of manufacture, prior to shipment, unless otherwise specified, and shall be so conducted as not to interfere unnecessarily with the operation of the works.
Σελίδα 255 - ... works which concern the manufacture of the material ordered. The manufacturer shall afford the inspector, free of cost, all reasonable facilities to satisfy him that the material is being furnished in accordance with these specifications. All tests (except check analyses) and inspection shall be made at the place of manufacture prior to shipment, unless otherwise specified, and shall be so conducted as not to interfere unnecessarily with the operation of the works.
Σελίδα 248 - The inspector representing the purchaser shall have free entry at all times while work on the contract of the purchaser is being performed to all parts of the manufacturer's works which concern the manufacture of the pipe ordered. The manufacturer shall afford the inspector, free of charge, all reasonable facilities to satisfy him that the pipe are being furnished in accordance with these specifications. All tests...
Σελίδα 255 - Samples so prepared shall be divided into three equal parts, each of which shall be placed in a sealed package, one for the manufacturer, one for the purchaser, and one for an umpire, if necessary.
Σελίδα 233 - Sections 4 to 19 shall result in rejection of all the pipe in the shipment or delivery, corresponding to the sizes thus failing to comply; except that in the event of 20 per cent of the specimens in any size failing to meet the requirements, the manufacturer or seller may, with the consent of the purchaser, furnish for test, without charge, additional specimens from the same shipment to be selected as specified in Section 6.
Σελίδα 235 - The bearings shall be sufficiently rigid to transmit and receive uniform loads throughout their lengths without deflection, and shall be so attached to the machine as to transmit and receive the maximum stresses produced by the tests without lost motion, vibration or sudden shock.
Σελίδα 249 - The yield point shall be determined by the drop of the beam of the testing machine.
Σελίδα 16 - Plumbing is the art of installing in buildings the pipes, fixtures, and other apparatus for bringing in the water supply and removing liquid and water-carried wastes.
Σελίδα 44 - The air test shall be used in testing the sanitary condition of the drainage or plumbing system of all buildings where there is reason to believe that it has become defective. In buildings condemned by the proper administrative authority because of insanitary conditions of the plumbing system the alterations in such system shall not be considered as repairs, but as new plumbing.

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