Customer Acceptance Standard No. Date: Supercedes: Page: FIBERGLASS CONTINUOUS FILAMENT YARN FOR THE WEAVING INDUSTRY DESCRIPTION Fiberglass yarn is a natural, lustrous, white, continuous filament yarn, which is evenly twisted on supply packages. The yarns are smooth, non-cellular and generally cylindrical in form. The yarns are made of glass of high stability and durability and are with the exception of sizing ingredients, inorganic, incombustible and will neither expand nor contract with moisture changes. The glass composition meets the certification for “E” glass as defined by ASTM’s D 578-00 Standards Specification for Glass Fiber Strands. The individual glass fibers do not tend to absorb moisture and are extremely flexible. The sizing may be burned off the yarn under certain conditions. Weathering tests have indicated comparatively unlimited stability under repeated cycles of heat, cold, sunlight, dampness and drying. II. USE These yarns are used for further fabrication typically: warping, weaving for glass fabrics and tapes. III. YARN NOMENCLATURE (US Customary System) Example Product Name (SI System) ECD450 1/0 1.0Z EElectrical glass formulation CContinuous filaments DFilament diameter (See Table 1) 450Yards per pound divided by 100 1/0Single yarn end 1.0Z- One turn per inch (TPI) EC5-11 1X0 Z40 EElectrical glass formulation CContinuous filaments 5Filament diameter (See Table 1) 11grams per 1000 meters of yarn 1X0- Single yarn end Z40Twists per meter (TPM) Throughout history, the actual yardage or Tex of yarn products has often been shifted from the actual yield provided in the product name. Therefore, the yarn name is only used as a descriptor. The table in section V. must be utilized to obtain the actual bare glass yield of a yarn product. This specification is subject to change without notice.

Customer Acceptance Standard No. Date: Supercedes: Page: IV. GENERAL INFORMATION Reference Textiles Fibers For Industry for more information Filament Filament Designation Range for Average Filament Diameter This specification is subject to change without notice.

Customer Acceptance Standard No. Date: Supercedes: Page: AVAILABLE PRODUCTS AND BARE GLASS YIELD PROPERTIES Product Name* Bare Glass Yield NOTE: See Section VIII for bobbin selections ***- Nomenclature used for identification purposes only. Nomenclature may not indicate true yield. Cv provided as a reference only. This is not a specified product property. This specification is subject to change without notice.

Customer Acceptance Standard No. Date: Supercedes: Page: VI. AVAILABLE PRODUCTS AND ADDITIONAL PHYSICAL PROPERTIES Product Name Strand Solids Minimum Tensile This specification is subject to change without notice.

Customer Acceptance Standard No. Date: Supercedes: Page: REMARKS: • Strand solids limits are for “as produced”. Monthly charts available from producing plant on request. • • Diameter – Filament diameter is listed for reference purposes only, and is not a cause for rejection. Breaking Strength – The strength is expressed in pounds (newtons) per end. The minimum strengths will be the average of five breaks per package. Moisture – The maximum moisture for individual packages is 0.75%. TEST METHODS FOR PHYSICAL PROPERTIES The physical properties as listed in this specification shall be tested according...

Customer Acceptance Standard No. Date: Supercedes: Page: AVAILABLE PRODUCTS AND VISUAL PROPERTIES Product Name Broken Filaments (360° Count) * The number of filaments and nominal filament diameter is for reference purposes only. Yarns are controlled according to yards per pound (linear density-TEX). This specification is subject to change without notice.

Customer Acceptance Standard No. Date: Supercedes: Page: A. The product shall be free of the following internal or external (depending where found) characteristics. Entrapped Waste Ends Out Damaged Yarn* Unbalanced Yarn Sloughed Yarn* Bad Builds Water Spots Dirt, Grease or Oil Mixed Yarns** Cut Tubes Cracked Tubes Protruding Ends (start up) Loops Broken Filaments (fuzz) * AGY accepts no responsibility for any damaged or sloughed material that is contained in a carton that shows any evidence of physical abuse. Any carton showing evidence of having been opened from the bottom will be considered...

Customer Acceptance Standard No. Date: Supercedes: Page: VIII. PACKAGING WEIGHT AND METERING DATA Average package weight is for information only. All packages are completely splice-free. Metered and non-metered material is packaged separately. Product Name Bobbin Type Shipment Makeup* Full Connected 2.0 lbs (0.91 kg) to full Full Connected special order Full Connected 2.0 lbs (0.91 kg) to full Full Connected This specification is subject to change without notice. Note 3,5 Note 5,6 Note 5,6

Customer Acceptance Standard No. Date: Supercedes: Page: PACKAGING WEIGHT AND METERING DATA – cont’d This specification is subject to change without notice. Note 3,5 Note 5 Note 5 Note 5 Note 5 Note 3,4,5 Note 3,4,5 Note 3,4,5 Note 5 Note 3,4,5 Note 3,4,5 Note 3,5 Note 3,4,5 Note 5 Note 5 Note 5 Note 5

Customer Acceptance Standard No. Date: Supercedes: Page: PACKAGING WEIGHT AND METERING DATA – cont’d *Shipment makeup ratio of percent metered may be decreased with beam orders of the same product. PACKAGING WEIGHT AND METERING DATA Notes: 1. D450 metering tolerance ± 2600 yds (±2400 m), Tails available 2. D900 metering tolerance ± 2600 yds (±2400 m) 3. Available with transfer tails only 4. Available with treatment only 5. Metering tolerance for all other yarns is plus 3%. 6. Transfer tails available upon request. IX. PACKAGE DESCRIPTION See AGY document AGY - PD 1 for more information. Package...

Customer Acceptance Standard No. Date: Supercedes: Page: Document History Date 4/21/11 Description of Change Tables V, VI, VII, VIII Deleted – D450 620-1 and 622 marble melt, D1800 622,”DM” descriptor for direct melt D450 and D900 Added – “MM” descriptor for marble melt D900, ECBC1500 (new product) Table VIII D900 (all products) changed minimum packing weight for non-metered from the original 2.0-lb to 1.0-lb Changed the kilogram weights from 0.91 kg to 0.45 kg on the D900 products, page 8. In Section VI - ECC1200 1/0 1.0Z 622-strand solids spec changed nominal from 1.80 to 1.70 and minimum from...