1025.3.1 Solid and continuous.

For the purposes of this section, solid and continuous means without gaps or interruption, except as required for the control of expansion and contraction. A series of dashes, chevrons, dots, or other similar patterns is not solid and continuous. Luminous materials shall be considered solid and continuous if they occasionally contain the following safety green (ANSI Z 535.1) symbols or text:

   1.   The word "EXIT";

   2.   Egress symbol as per NFPA 170;

   3.   Direction arrows as per NFPA 170; or

   4.   Other text or symbols as approved by the commissioner.

1025.4 Self-luminous and photoluminescent.

Luminous egress path markings shall be permitted to be made of any material, including paint, provided that an electrical charge is not required to maintain the required luminance. Such materials shall include, but not be limited to, self-luminous materials and photoluminescent materials. Materials shall comply with either of the following standards:

   1.   UL 1994.

   2.   ASTM E 2072, except that the charging source shall be 1 footcandle (11 lux) of fluorescent illumination for 60 minutes, and the minimum luminance shall be 30 millicandelas per square meter at 10 minutes and 5 millicandelas per square meter after 90 minutes.

1025.4.1 Labeling.

All approved materials shall be labeled and identified with the manufacturer's name, model number and the name of the approved agency in a minimum of 6 point type with at least one such identification on each piece of material installed. However, labeling is not required for pieces of material less than 1 foot (304.8 mm) in length that are placed in immediate proximity of an identical model that is labeled. Materials may include supplemental identifying information such as the trade name or "NYC".

1025.5 Reserved.

1025.6 General standards.

Luminous materials shall comply with the design standards of Sections 1025.6.1 and 1025.6.2.

1025.6.1 Design of door and directional signs.

Unless otherwise specified, all photoluminescent door signs and directional signs:

   1.   May be either positive or negative image;

   2.   Shall be made with the non-photoluminescent portions of the signs in safety green as per ANSI Z535.1; and

   3.   Shall include three components:

      3.1.   The word "EXIT" printed in sans serif letters at least 4 inches high (101.6 mm) with strokes no less than 1/2 inch (12.7 mm);

      3.2.   An emergency exit symbol at least 4 inches high (101.6 mm), complying with NFPA 170; and

      3.3.   An arrow at least 2 3/4 inches (69.9 mm) high, complying with NFPA 170.

Design of door and directional sign shall comply with Figures S101.1(9), S101.1(13), S101.1(14) and S101.1(15) of Appendix S.

1025.6.1.1 Additional text for sign subject to this section.

Additional descriptive text is permitted, provided such words are in sans serif letters and, where the word "EXIT" or the emergency symbol is required on such sign, such a descriptive text is no more than one-half high as any the word "EXIT" or the emergency exit symbol.

1025.6.2 Figures.

The figures in Appendix S are intended only for illustration, and where there is a conflict between the figures and this section, this section shall govern.

1025.7 Voluntary installation.

Where luminous egress path markings are not required but are voluntarily installed in the exit path, such markings shall comply with Section 1025.