Pertaining to Gas Fitting and Gas Fitting Materials, Adopted July 29, 1898, by the Board of Health and the Building Commissioner, to Take Effect Oct. 1,1898. - Amended Aug. 16,1899. - • Amended March 12, 1918.

(Authorized by Chapter 265, Acts of 1897.)

Notice of Repair of Leaks

Section 1. In all cases of repair of leaks, a notice giving the location and extent of all work performed shall be filed with the building commissioner immediately upon completion of the same.

No Pipe or Fitting to be Concealed Until Approved

Sect. 2. No pipe or fitting shall be covered or concealed from view until approved by one of the gas fitting inspectors of the building department, or for twenty-four hours after notice has been given to the building commissioner.

No Pipe to be Laid Subjected to Strain

Sect. 3. Pipes shall be run and laid to avoid any strain or weight on the same, except that of the fixtures.

Outlets. - Number of Burners

Sect. 4. Outlets for fixtures shall be securely fastened; all outlets not covered by fixtures shall be left capped, and the number of burners for each outlet shall be marked on the builders' plan.

Pipes to be Properly Protected

Sect. 5. Pipes laid in a cold or damp place shall be properly dripped, painted with two coats of red lead and boiled oil, or covered with felting satisfactory to the building commissioner.

Swing Brackets

Sect. 6. Swing brackets shall have a globe or guard to prevent its burner from coming in contact with the wall. Bracket outlets shall be at least 2 inches from window or door casings.

Stop-Pins

Sect. 7. Stop-pins to cocks shall be screwed into place.

Cement Prohibited

Sect. 8. The use of gas fitters' cement is prohibited, except in putting fixtures together.

Inside Service to be Tested

Sect. 9. Inside services shall be tested by the fitter who receives the permit to connect the service or meter,

Service Pipe to have Main Cock

Sect. 10. There shall be a main cock on the service-pipe close to the foundation wall, one cock at the inlet side and one at the outlet side, of each meter. When service pipes are over two inches brass or composition, seated valves shall be used.

Final Test to be Made by Gas Filler in Presence of Inspector

Sect. 11. There shall be a final test, by a gas fitter, of all fixtures and pipes by a column of mercury raised not less than two inches, which must stand five minutes; this test to be made in the presence of one of the gas-fitting inspectors of the building department; the gauge to be made of glass tubing of uniform interior diameter, and so constructed that both surfaces of the mercury will be exposed.

Material of Gas-Pipe

Sect. 12. All gas-pipes shall be of wrought iron or steel, all fittings of malleable iron, and all meter connections of lead pipe of the same size as the fit or riser except where meters are to be connected with flanges.

Brass Nipples

Sect. 13. Brass solder nipples shall be used on all meter connections.

Risers

Sect. 14. No riser shall be left more than five feet away from the front foundation wall.

Sect. 15. Gas-pipes shall be run in according to the following scale:

Scale for Piping

Outside Piping of Brass a Fixture

When brass piping is used on the outside of plastering or woodwork, it shall be classed as fixture.

Outlets and Risers. Sect. 16. Outlets and risers not provided with fixtures shall be properly capped.

Outlets for Fixtures

Sect. 17. Outlets for fixtures shall not be placed under tanks, back of doors, or within three feet of any meter.

Shields, When Required

Sect. 18. Gas-burners less than two feet from a plastered ceiling or less than three feet from overhead woodwork shall be protected by a shield satisfactory to building commissioner. In first-class buildings no shields will be required.

Brass Tubing. - Threads on Brass Pipe. - Rope or Square

Tubing

Sect. 19. Brass tubing used for arms or fixtures shall be at least No. 18 standard gauge with full thread. All threads shall screw in at least 5/16 of an inch. Rope or square tubing shall be brazed or soldered into fittings and distributers, or have a nipple brazed into the tubing.

Cast Fittings. - Piugs of Cocks. - Stems of Fixtures. - L-Burner Cocks

Sect. 20. Cast fittings such as cocks, swing joints, double centres and nozzles shall be standard fittings, except for factory use, where extra heavy or mill fittings shall be used. The plugs of all cocks must be ground to a smooth and true surface for their entire length, be free from sandholes, have not less than 3/4-inch bearing on all cast fittings and 1/11/6 of an inch on all turned fittings, have two flat sides on the end for the washer and have two nuts instead of a tailscrew. Stems of fixtures of two lights or more each shall be not less than 1/4 of an inch iron-pipe size. L-burner cocks shall not be used at the end of chandelier arms, except in stores, churches, theatres, halls, and places of assembly or public resorts.

Outlets for Gas-Ranges

Sect. 21. Outlets for gas-ranges shall have a diameter not less than that required for six burners, and all gas-ranges and heaters shall have a cock on the service-pipe. Ranges and heaters must be connected with right and left couplings, except in fireplace work where brass unions may be used.

Pipes to be Laid above Timbers

Sect. 22. Pipes shall be laid above timbers unless otherwise permitted by the building commissioner.

Second-Hand Gas-Piping not Allowed

Sect. 23. No second-hand gas-pipe shall be put into use in any building without the written permit of the building commissioner.

Drops or Outlets

Sect. 24. Drops or outlets less than 3/4 of an inch in diameter shall not be left more than 3/4 of an inch below plastering, centre-piece, or woodwork, and other outlets shall not project more than 3/4 of an inch beyond plastering or woodwork.