THE INDIA RUBBER WORLD 



651 



Outside diameter, 

 plus or nnnus 

 Tolerance (I 



I Soft 

 Tolerance (O. D.) plus or minui 

 Length, as specified in proposal. 

 Thickness: 



'See "The 



World," January 1, 1920, page 214. 



furnish a section of hose 12 inches long, which he shall guarantee 

 to be made of the same material and the same construction (with- 

 out wire), as the hose delivered. 



Te.sts. — See General Specifications and above table. 



^o) Test pieces of tube and cover shall be subjected to 

 an accelerated aging test of 96 hours in dry heat at 158 degrees, 

 plus or minus 2 degrees F. 



WATER HOSE. 



Wax Department Specification No. 383-1-14— June 5, 1919. 



General.— (a) This specification covers the requirements for 

 hose to be used in conveying cold water. 



(&) See War Department Specification No. 333-1-1, headed 

 General Specification for Mechanical Rubber Goods', which is 

 made a part hereof, except in such cases as the provisions below 

 directly conflict. In such cases the word and meaning of this 

 specification will govern. 



Construction. — See General Specifications. 



(a) Dimensions to conform with the following table. 



Branding. — See General SpeVihcations. 



(o) Use the word "Water." 



Material. — See General Specifications. 



(a) Tube, cover, washer, and friction shall contain not less 

 than 35 per cent fine Para rubber, not more than 3 per cent of 

 sulphur; the remainder shall consist of suitable dry inorganic 

 mineral fillers. 



Insi'ection. — ^See General Specifications. 



Tests. — See General Specifications and following table. 



(a) Test pieces of tube and cover shall be subjected to an ac- 

 celerated aging test of 96 hours in dry heat at 158 degrees F., 

 plus or minus 2 degrees. 



T.-lBLE I. 



Size. 



Tolerance, inside diameter, plus 



Outside diameter inches 



Tolerance, plus or minus.. inch 



Thi. 



Inch. 



1 Wi 2 



Inch. Inches. Inches. 



1/64 1/32 1/32 

 I'A 2 



1/32 3/64 



3?6l 





Tube, 



Fabric p 

 Hydrosta 



Friction : 



Cover and plies, minimum.. lbs 

 Tubes and plies, minimum, .lbs. 



1/16 

 3/64 



1/16 

 3/64 



After accelerated aging — 

 Tube 



Ultimate elongation: 

 Tube and cover, minimum- 



15 



1,500 

 1,300 



ermanent set, tube and c 

 Stretch for 10 minutes. 



Set per cent after 10 



Inch. Inch. Inches. Inches 

 2-10 2-10 2-10 2-10 



1. 1920, page 21 



GUTTA PERCHA IN THE PHILIPPINES. 



The Honorable Dionisio Jakosalem. Secretary of the Depart- 

 ment of Commerce and Communications of the Philippines, 

 writing in regard to the exports of gutta percha 'from the 

 Philippines, states that most of the gutta percha produced 

 in the Philippines is exported through the ports of Jolo and 

 Zamboanga to Singapore, from whence it goes to Europe. The 

 product is thus wrongly credited to the Federated Malay States. 

 His office is now conducting an investigation to find out why 

 that product is not exported directly from Manila to the United 

 States. 



He points out that in 1915 the Philippine export of gutta p)ercha 

 amounted to 31.650 kilos, valued at 31,143 pesos, and in 1919 to 38,- 

 030 kilos, valued at 36,942 pesos. One thousand kilos equals a 

 ton of 2.200 pounds, a peso equals 50 cents. United States cur- 

 rency. The Secretary believes that the volume of our export to 

 the United States can be considerably increased through the em- 

 ployment of American buyers in the Philippines with the estab- 

 lishment of a reliable market in the United States where direct 

 shipments may be handled. 



.\ while back, when the laying of another lra«spacific cable 

 was under discussion, it was alleged that the necessary gutta 

 percha for insulation could not be secured as Great Britain had 

 control of the world's supply. 



The supply of gutta percha that can be secured in the Philip- 

 pines is incalculable. It is classed as a minor forest product and 

 is brought in by members of the non-Christian tribe, who live in 

 the forests, in small quantities when they are in need of funds. 

 No systematic effort has been made to secure a larger supply and 

 the competition among the Chinese traders for that which is 

 produced is not very keen. 



The Secretary also points out the existence of extensive areas 

 for the cultivation of rubber plants which are available ; and 

 that great opportunities and ample government protection are 

 offered American and foreign capital invested in the islands. 

 (James T. Raflfertv, Philippine Commercial Agency. New York 

 City.) 



