Document Z4n7R7MYkvjVnVNpQd84vMXpV

S' /-/ M r. K . R . Hancock U S,, DepeHrnent of Labor O o e v ^ io ra t Safety- % Health AdminsL'afctiin P ro gress P laza 4 N . P r e p r e ss Avenue H arrisb u rg , Pswy?.van|R -1710 August 17, 1978 R et Y our la tte r 6 /5 1 /7 8 M agnesium S ilica te entiem an We s r a en closin g a copy e ? cu r Procjucfc D ata S h eet fc>r M agnesium S ilic a t . T h is la an in e rt, nonH*Smmafol white pw d*r> C hem ical F o rm u la s j Ahg3 (CHS) stO S)2 --conntng r arom atic so lv e n t. The thresh old lim it value a s published by the A m erican C onference of G overnm ental Industrial H ygienists i 20 m ppcf Tire re are- no S ectio n it Qngr&d&n&a in this prod.cte V ery truly y cu rs, W H IT T A K E R , C L A R K ft D A N IE L S , N C . A C /am SncL { v // '/ / A eron Cohar. D irecto r f R egulatory A ffairs ^ u Hn t if f ? EXHIBIT WCD-167 WCD 001570 WHITTAKER, CLARK & DANIELS, INC. 1000 CQOLIDGE STREET SOUTH PLAINFIELD, N. J. 070S0 Tel: 201 - 561-6100 DATE J u l y 1 2 , 1978 SUBJECT u . S . D e p a rtm e n t of L a b o r P le a s e s e r v ic e th is le tte r fro m O S H A req u estin g inform ation on "M agnesium S ilic a t e " , and com m ent as to an a n sw e r. T h e only product we identify as "M agnesium S ilic a te " is our #399. Thanks. ail.l oe /fe V M.f yZ P & ji? m o h el' P r e o K O t'S ch / y yrz. 'Z c SIGNED . DATE WCD S