Wash. Admin. Code § 296-17A-3102
Applies to:
Businesses manufacturing mineral wool insulation from siliceous materials.
Materials used include, but are not limited to:
* Glass;
* Rock;
* Slag;
* Other siliceous materials.
Work activities include, but are not limited to:
* Blowing hot air or steam through molten rock or slag in a special furnace.
* Drawing molten glass at high speeds through orifices, then subjecting it to jets of high pressure steam which break the glass filaments into fine fibers to produce fiberglass insulation material.
* Shredding the material into a mass of fine intertwined fibers to form the wool.
* Forming and shipping the final product, such as granules which are bagged, or flat sheets which are cut to size, enclosed in paper or foil, and packaged.
* Incidental rock, slag, and glass crushing.
Exclusions:
* Digging or quarrying of raw materials is classified in the classification appropriate to the work being performed.
* Manufacturing asbestos products is classified in 3104.
Wash. Admin. Code § 296-17A-3102
07-01-014, recodified as § 296-17A-3102, filed 12/8/06, effective 12/8/06. Statutory Authority: RCW 51.16.035. 98-18-042, § 296-17-572, filed 8/28/98, effective 10/1/98; 96-12-039, § 296-17-572, filed 5/31/96, effective 7/1/96. Statutory Authority: RCW 51.04.020(1) and 51.16.035. 93-12-093, § 296-17-572, filed 5/31/93, effective 7/1/93. Statutory Authority: RCW 51.16.035. 85-24-032 (Order 85-33), § 296-17-572, filed 11/27/85, effective 1/1/86; Order 73-22, § 296-17-572, filed 11/9/73, effective 1/1/74.