48 ARSENIC IN PAPERS AND FABRICS. 



he who produces, sells, or exposes for sale materials contrary to the text of Arti- 

 cle IX will be punished with fines up to 150 marks or with imprisonment. 



ART. XIII. In addition to the punishment prescribed in Article XII, goods or 

 materials which have been illegally produced, wrapped or packed, sold or exposed 

 for sale, may be seized, whether the sentence has been pronounced or not. 



If the prosecution of certain persons is not practicable the confiscation can be 

 ordered independently. 



ART. XIV. The text of the laws concerning the commerce in foods, food mate- 

 rials, and articles in common use of May 14, 1879 (Reichs-Gesetzblatt, S. 145), 

 remains in force. 



ART. XV. This law goes into force May 1, 1888; on the same day the imperial 

 order concerning the use of poisonous colors of May 1, 1882 (Reichs-Gesetzblatt, 

 3. 55), goes out of force. 



Enactment concerning the investigation of dyes, spun goods, and woven goods for 

 arsenic and tin, April 10, 1888. (Office of the Interior.) 



On the basis of the text of Article I, paragraph 3, and Article VII, paragraph 

 2, of the law concerning the use of health-injuring dyes in the production of 

 foods, food materials, and articles of common use, of the 5th of July, 1887 

 (Reichs-Gesetzblatt, S. 277) , it is decreed that for the proof of the use of arsenic 

 and tin in the production of foods and food materials and for the ascertainment 

 o- the arsenic content of spun and woven goods where an arsenic-containing mor- 

 dant was used, the directions in the adjoining text are to be followed. 



DIRECTIONS. METHOD FOR DETECTION OF ARSENIC IN WOVEN AND SPUN GOODS. 



ART. XIII. Thirty grams of the goods to be tested is cut up, heated for two or 

 four hours in distilled water at 70 to 80 C., filtered, washed, the filtrate evap- 

 orated to 25 cc, allowed to cool, 5 cc of concentrated sulphuric acid added, and the 

 fluid put into the Marsh apparatus with arsanic-free zinc. If an arsenic mirror 

 is obtained, then the arsenic was in a water-soluble form in the cloth. 



ART. XIV. If the results under XIII were negative, then 10 grams more is taken 

 and its surface area determined. 



ART. XV. If the necessary amount of spun or woven goods is not available for 

 XIII and XIV. then the investigation may be made upon smaller amounts. Also 

 the experiment under XIV can be carried out on a part of the goods used for 

 XIII, which has been extracted with water and then dried. 



ART. XVI. The spun or woven goods are cut up in small pieces, which are trans- 

 ferred to a tubular retort of potassium glass of about 400 cc capacity, with 100 cc 

 pure hydrochloric acid, sp. gr. 1.19. The neck of the retort is drawn out and 

 bent at an obtuse angle. It is placed so that the neck projecting from the flask 

 slopes upward and the main part slopes downward. Then a Liebig condensing 

 tube is connected and joined with a piece of rubber tubing. The air-tight tube 

 of the cooling apparatus leads to a 500 cc receiver. Two hundred cubic centi- 

 meters of water are placed in the receiver, which is kept cool by being placed in a 

 receptacle containing water. The side tube of the receiver is connected in the 

 usual way with a Peligot tube containing water. 



ART. XVII. In the course of an hour 5 cc of a saturated solution of arsenic- 

 free ferric chlorid crystals, saturated at room temperature, is added to the con- 

 tents of the retort and then heated. After the excess of hydrochloric acid is given 

 off the temperature is raised and the fluid is distilled over until the contents 

 begin to foam badly. It is allowed to cool, 50 cc hydrochloric acid, sp. gr. 1.19, 

 is added to the retort, and it is distilled again in a like manner. 



ART. XVIII. The fluid in the receiver, colored brown by organic matter, is 

 united with the contents of the Peligot tube, diluted with distilled water to 600 



