Common use of Inhalation Clause in Contracts

Inhalation. T wo co n ce n t r a t io n s of t h e t es t s u bs t a n ce s h a ll be u sed i n t h i s po r t io n of t h e s t u d y , a low co n ce n t r a- t io n a n d a h ig h co n ce n t r a t io n . T h e h ig h co n ce n t r a t io n s h o u ld ide a ll y i n- d u ce so m e ove r t t oxici t y , w h ile t h e low co n ce n t r a t io n s h o u ld co rr espo n d t o a n o obse r ved level. I nh a l a t io n t r e a t - m e n t s h o u ld be co n d u c t ed u s i n g a ‘‘n ose- co n e’’ o r ‘‘h e a d o n l y’’ a pp a r a t u s t o p r eve n t i n ges t io n of t h e t es t s u b- s t a n ce t hr o u g h ‘‘g r oo m i n g’’.

Inhalation. T wo co n ce n t r a t io n s of t e a c h e t es t s u bs t a n ce s h a ll be u sed i n t h i s po r t io n of t h e s t u d y , a low co n n- ce n t r a- a t io n a n d a h ig h co n ce n t r a t io n . T h e h ig h co n ce n t r a t io n s h o u ld ide a ll y i n- n d u ce so m e ove r t i n i m a l t oxici t y , w b u t s h ile a ll n o t exceed t h e lowe r explosive li m i t ( LEL). T h e low co n ce n t r a t io n s h o u ld a ll co rr espo n d t o 1/10 of t h e h ig h co n ce n t r a t io n o obse r ved level. I nh a l a a- t io n t r e a t - m e n t s h o u ld a ll be co n d u c t ed u s i n g a ‘‘n ose- co n e’’ o r ‘‘h e a d o n l y’’ a pp p- p a r a t u s t o p r eve n t ed u ce i n ges t io n of t h e t es t s u b- s bs t a n ce t hr o u g h ‘‘g r oo m i n g’’’’ o r de r - m a l a bso r p t io n .