|
|
| Тема |
 Re: Съхранение на толуол [re: White Raven] |
|
| Автор |
engeneer. (H2O) |
|
| Публикувано | 28.07.05 01:11 |
|
|
|
izwini me za nekompetentnija sawet w parwija mi posting. Kakto mozhe da se widi po dolu, toluen ne se sahranjawa sigurno pri izpolzwane na polietilen (w sluchaja e wazhen materialat). Ot izbroenite polimeri, koito mogat da se izpolzwat, ti preporachwam teflona, no naj-werojatno njama da namerish podhodjashta tapa ot teflon. Po dobre si kupi ot njakoja firma za himikali upotrebeno prazno shishe ot toluen ili drug shoden po swojstwa raztworitel (shisheto da e s kapachka!), ponezhe takiwa shisheta obiknoweno se prodawat s himicheski ustojchiwa kapachka.
Za sazhalenie ne mi idwa drugo na uma.
wizh na taja stranica kakwi materiali sa preporachitelni za rabota s toluen.
What types of materials should my protective clothing be made of?
Guidelines for toluene:
RECOMMENDED (resistance to breakthrough longer than 8 hours): polyvinyl alcohol, Teflon(TM), Viton(TM), 4H(TM) (polyethylene/ethylene vinyl alcohol), Barricade(TM), CPF3(TM), Responder(TM), Trellchem HPS(TM), Tychem 10000(TM).
NOT RECOMMENDED for use (resistance to breakthrough less than 1 hour): Butyl rubber, natural rubber, neoprene, nitrile rubber, polyethylene, polyvinyl chloride, Saranex(TM).
This material is a recognized skin absorption hazard (ACGIH or OSHA).
Recommendations are valid for permeation rates reaching 0.1 µg/cm2/min or 1 mg/m2/min and over. Resistance of specific materials can vary from product to product. Breakthrough times are obtained under conditions of continuous contact, generally at room temperature. Evaluate resistance under conditions of use and maintain clothing carefully.
Reference: Forsberg, K., et al. Quick selection guide to chemical protective clothing. 3rd edition. Van Nostrand Reinhold, 1997.
---
pozdrawi!
pishi pak, ako waprosat ne se reshi uspeshno, shte izmislim wse neshto.
| |
| |
| 
|
|
