Document ZVBB1jzX2m2baY4MGQ4y8YGV

FILE NAME: Visible Dust (VDT) DATE: 1953 DOC#: VDT011 DOCUMENT DESCRIPTION: Industry Warning Information eh h tr> eS'L- 53 SAFE PRACTI CE DATA SHEET A - 2 0 sat as ASBESTOS A s b e s t o s i s use! i n siany v a r i e d f o r m auch ( board, c l o t h , f i b e r , fpe psckinjt, u l e e v i n g , tap*, twi n, yara, s h e e t , and in s t k i r numerous a o s i hi a a t s f i n s . The ss ane r o f st o r a g e depends upon the form o f s i i h e s t o i . Where the a s h a o i s s s a y jMusaibly he i n a l o o s e f a s p du r i n g s t o r age, a d u s t y c o n d i t i o n c o u l d he produced and p r o p e r v e n t i l a t i o B s h o u l d he p r o vided. PROPERTIES yIS - Non-flammable. s l i g h t l y h i g h e r c o n c e n t r a t i o n may bo permitted but m s t not excead lO m i l l i s n p a r t i c l e s per c-ubie f o o t . These Maxi Allowable Concentrations apply to re peated or r ec u r rin g d a i l y expoaurei*. Where a s b e s t o s may be n i x e d w i t h o t h e r le s s harmful d u sts, the co n cen tra tio n a t a s h es t oo dust w i l l be t he c o n t r o l l i n g f a c t o r . The asbeatoa d u s t c o n c e n t r a t i o n c a n he d e t e r m i n e d by c o l l e c t i n g _ r,d analyzing air samples. SKI iSiSl TAT 19 - A s b e s t o s i a u s u a l l y not 'shirt i r r i t a n t . EXPtaSIQX - Non-explosive. PERSONAL PROTECTIVE EQUIPMENT 8ft#ATHI8d D u s t f r o m a s b e s t o s ma te ria l say produce a chronic lung disease i f i t is breathed in s u ffic ie n t concen- t r a t i a o s ove r a p e r io d o f y e a r s . In some p e r s o n s , t h e d i s e a s e may d e v e l o p much more r a p i d l y t ha n i n o t h e r s . The c o n c e n t r a t i o n and p a r t i c l e s i t e o f the d u s t w i l l a l s o i n f l u e n c e t h e number o f year* of exposure required to produce the d i s e a s e . In any c*ae, exposure ev es to high conceotCfition of asbestos dust f o r a p e r i o d o f a fa's days nr even c few months v i'ii not produce the d i s e a s e . P a r t i c l e s l a r g e r than, about 10 mi c r o n {O.OO0C3S i n . ) c a nno t g e t i n t o tha sms 11 l o n g a i r sac.* t o e a u s s d a m a g e . .Sitp.K s m a l l p a r t i c l e ** f a r be lew t h e r i t e which i s v i s i b l e t o t he halted. *ys. Host d a n l s , however, hste p a r t i c l e o f s l a r g e range of asses which vary from v i s i b le to i n v i s i b l e . It is only the fin inv i a i b l e o u s t p a r t i c l e s that, a m e f f e c t * in prodnejag onbeatoai. WHEN ST IS NECESSARY TO WORK It- AN AREA CONTAININC HIGH DUST CONCENTRATIONS. AN AIR-LINE RESPIRATOR OR HOSE MASK WITH OR WITHOUT A BLOWER MAY BE USED, l b a i r - l i n e r e s p i r a t o r s h o u l d have 6 i t 15 l h x / a q , i n . p r e ssu re . Care should be t a 'en s o t h a t c o n t a m i n a t e d a i r doer n e t e n t e r the hose f or t he hose maah. For medium d u a l c o n c e n t r a t i o n s , the standard all dust respirator 8881-5, equipped with f i l t e r 8883-6, say be used. F i l t e r s s h o ul d be r e p l a c e d a c c o r d i n g t o s predate trained c he duls or at any time br e st i nn g becomes d i f f i c u l t . A l l r e s p i r a t o r and r ep la ceme nt p o r t s s h o u l d ha r t th Bureau o f Mines a p p r o v a l which i s i n d i c a t e d by a l a b e l on l a r g e r n s r t o r PM#_______{ a p p r o v a l n n m h e r i on smsl|er part. PSfCAUTIOHS Whore p e o p l e y b r e a t h e t i e ' at, A PF.8SOM SHOULD NOT ENTER AN AREA t h e Maximum A l V o v i b l e Cone a n t r i i s CONTAINING AN EXTREMELY HIGH CONCENTRA- S i l l t o o p a r t i c l e * p e r e u h i c f i a t o f TIOfi GF ASBESTOS BUST FOR A PROLONGED , i r , u n i * * * he pbedi r T e ( r 1 PERIOD OF TIME WITHOUT ADEQUATE PftOTEC- that) on* ho d r p * s d * y , i " h i * t .is s ' - T I C K . Tl 14AXIMUM ALLOWABLE CONCENTRATION t>;m 1M DOUBT COHSOLT HSDICAl OB SAfSTY DEBAiTHBHT ft So$*U SAFE PRACTICE DATA SHEET A- 2 0 1 .J ! #t t 3 I T C H O U S * * t * e r K J C CU S P . , t p O U S T IA t H Y G S K S LAB. , t.AST 03'111- 58 q P I T T S BU*CH._,r A- ewir