16 CFR § 1616.3 - General requirements.

---
identifier: "/us/cfr/t16/s1616.3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "16 CFR § 1616.3 - General requirements."
title_number: 16
title_name: "Commercial Practices"
section_number: "1616.3"
section_name: "General requirements."
chapter_name: "CONSUMER PRODUCT SAFETY COMMISSION"
subchapter_number: "D"
subchapter_name: "FLAMMABLE FABRICS ACT REGULATIONS"
part_number: "1616"
part_name: "STANDARD FOR THE FLAMMABILITY OF CHILDREN'S SLEEPWEAR: SIZES 7 THROUGH 14 (FF 5-74)"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
regulatory_source: "40 FR 59917, Dec. 30, 1975, unless otherwise noted."
cfr_part: "1616"
---


# 1616.3 General requirements.

(a) *Summary of test method.* Conditioned specimens are suspended one at a time vertically in holders in a prescribed cabinet and subjected to a standard flame along their bottom edges for a specified time under controlled conditions. The char lengths are recorded.

(b) *Test criteria.* The test criteria when the testing is done in accordance with § 1616.4 *Sampling and acceptance procedures* and § 1616.5 *Test procedures* are:

(1) *Average char length.* The average char length of five specimens shall not exceed 17.8 cm. (7.0 in.).

(2) *Full-specimen burn.* No individual specimen shall have a char length of 25.4±0.5 cm. (10±0.2 in.).

(c) Details of the number of specimens which must meet the above test criteria for unit acceptance is specified in § 1616.4.