Anderson
Laboratories, Inc.

EFFECTS OF SMOKES AND OFFGASING

30 River Street
Dedham, MA 02026
TEL: (817) 364-7257
FAX: (817) 364-5709

                               
September 10, 1991

 

Director of MEA Division
The City of New York
Department of Buildings
60 Hudson Street
New York, New York  10013

 

To the Director,

The accompanying report presents the results of the Pittsburgh test for the combustion product toxicity which has been performed on a penetrating fluid, fire retardant product made by New York Fire-Shield. The MEA file code for this product is 311-90 M volume 2. As required by the Materials and Equipment Acceptance Division of the New York City Department of Buildings, we have reviewed the product literature and tested a representative product for combustion product toxicity (Anderson Laboratories Test #938). Because of the way in which the product is sold and used we chose to apply the product to wood (according to manufacturers directions) and to test the dried painted wood. The amount of product applied was 0.2% of the total weight after drying.

The comparison between the candidate product and the wood reference product has been based on weight. The test value, LC50, for wood is 19.7 grams. The LC50 value (g) for this product/wood test is 16.8. The test value is within the 25% confidence limit of the mean wood value and thus the product has not changed the test value of wood alone. For this reason we can describe the end use application as “not more toxic than wood”.

If I can provide more information concerning these products, please call me at (617) 364-7357.

 

Sincerely,

Rosalind C. Anderson, Ph.D.
President