---
kind: "section"
citation: "30 C.F.R. § 7.23"
title: "30"
number: "7.23"
heading: "Application requirements."
url: "https://uscodex.org/cfr/30/7.23"
---

# §7.23. Application requirements.

- (a) **Brattice cloth.** A single application may address two or more products if the products differ only in: weight of the finished product; weight or weave of the same fabric or scrim; or thickness or layers of the same film. Applications shall include the following information:
  - (1) **Trade name.**
  - (2) **Product designations (for example, style and code number).**
  - (3) **Color.**
  - (4) **Type of brattice (for example, plastic or jute).**
  - (5) **Weight of finished product.**
  - (6) **Film—** type, weight, thickness, supplier, supplier's stock number or designation, and percent of finished product by weight.
  - (7) **Scrim—** Type, denier, weight, weave, the supplier, supplier's stock number or designation, and percent of finished product by weight.
  - (8) **Adhesive—** type, supplier, supplier's stock number or designation, and percent of finished product by weight.
- (b) **Flexible ventilation tubing.** Applications shall include the product description information in [paragraph (a)](#a) of this section and list the type of supporting structure, if applicable; inside diameters; and configurations.
- (c) **Rigid ventilation tubing.** A single application may address two or more products if the products differ only in diameters, lengths, configuration, or average wall thickness. Applications shall include the following information:
  - (1) **Trade name.**
  - (2) **Product designations (for example, style and code numbers).**
  - (3) **Color.**
  - (4) **Type of ventilation tubing (for example, fiberglass, plastic, or polyethylene).**
  - (5) **Inside diameter, configuration, and average wall thickness.**
  - (6) **Suspension system (for example, metal hooks).**
  - (7) **Base material—** type, supplier, the supplier's stock number, and percent of finished product by weight.
  - (8) **Resin—** type, supplier, the supplier's stock number, and percent of finished product by weight.
  - (9) **Flame retardant, if added during manufacturing—** type, supplier, the supplier's stock number, and percent of finished product by weight.

## Notes

### Amendments

[53 FR 23500, June 22, 1988, as amended at 60 FR 33722, June 29, 1995]

### Authority

Authority: 30 U.S.C. 957.

### Source

Source: 53 FR 23500, June 22, 1988, unless otherwise noted.

### Amendments

[53 FR 23500, June 22, 1988, as amended at 60 FR 33722, June 29, 1995]