Fire Retardant Paints (Advances in Chemistry Series 009) by Mark W. Westgate (Editor)

By Mark W. Westgate (Editor)

Show description

Read or Download Fire Retardant Paints (Advances in Chemistry Series 009) PDF

Similar chemistry books

Recent Developments in Carbocation and Onium Ion Chemistry (Acs Symposium Series 965)

The quantity is a suite of twenty-two chapters written through prime specialists and lively researchers within the box targeting a variety of features of carbocation and onium ion chemistry. those contain sturdy ion NMR experiences, solvolytic and kinetic stories, computational paintings, and synthetic/preparative elements.

The Adrenocortical Hormones: Their Origin · Chemistry Physiology and Pharmacology

2 Vol. three: Hormones, Psychology and behaviour (1952). a number pursuits was once coated in admire to the impression of glucocorticoids on behavioral responses, in addition to to the glucocorticoid prestige in quite a few behavioral states and problems. Vol. four: Anterior Pituitary Secretion and Hormonal effect in Water Metab­ olism (1952).

Additional resources for Fire Retardant Paints (Advances in Chemistry Series 009)

Sample text

Following this, a test sample of cement-asbestos board is exposed to the same conditions, and the length of the test flame with this m a t e r i a l establishes the zero classification. Test samples are preconditioned i n a specified atmosphere before exposure, and the test flame exposure is continued for 10 minutes unless the sample is c o m p l e t e l y consumed before that t i m e . Observations of the spread of flame are made at 15second intervals during the test. If the flame spread reaches only part of the distance between the end of the test flame and the end of the sample, the percentage of the distance traveled establishes the classification.

Perhaps the dimensions of the test room c o u l d be reduced and thus bring about the installation of this type of equipment at other laboratories. Class F Fire Test of C o m m e r c i a l Standards (12). The test specimen, precondi­ tioned at a temperature of 70* to 75* F. and a relative h u m i d i t y of 48 to 52%, is supported on the specified test rack at the specified 45* angle with the horizontal, with the board face downward, i n a draft-free l o c a t i o n . A flat-bottomed sheet iron cup of 5/8 i n c h internal diameter, 9/32 i n c h depth, and 1/32 inch thickness is placed on a support composed of m a t e r i a l of low thermal conductivity.

It is fire-retardant by virtue of its high pigment volume (and consequent reduction i n a v a i l a b l e combustible organic binder), and by incorporation of antimony oxide as part of the pigment. The v e h i c l e is a m e d i u m - l o n g o i l alkyd resin. This paint is satisfactorily fire-retardant. It is deficient i n resistance to staining, as its high pigment content produces a somewhat porous f i l m . No reliable data existed i n 1942 on temperatures that might be found during fires on ships, and no standard laboratory tests for measuring the fire-retardancy of paints were a v a i l a b l e .

Download PDF sample

Rated 4.36 of 5 – based on 46 votes