范围:1.1.1本要求适用于天然气和丙烷燃气转换燃烧器，其设计和建造主要用于将加热和工艺设备从使用其他燃料转换为燃气燃烧和/或燃烧新的加热或工艺设备。1.1.2本要求第2节“A”部分适用于最大输入额定值在400000 BTUH以上（含10000000 BTUH）范围内的转换燃烧器。根据这些要求的意图，可对输入低于400000 BTUH的con-version燃烧器系列进行研究。1.1.3本标准第2节“B”部分包括对“A”部分的附加要求，并适用于制造商最大输入额定值超过10000000 BTUH且不超过50000000 BTUH的转换燃烧器。 1.1.4这些要求适用于常压、风机辅助和强制通风型转换燃烧器。1.1.5A符合这些要求的转换燃烧器，如果其特征损害了要求中预期的结果，则不可接受。

Scope:1.1.1These requirements apply to natural and propane gas-fired conversion burners designed and constructed primarily for the purpose of converting heating and process equipment from the use of other fuels to gas firing and/or firing new heating or process equipment.1.1.2Section 2, Part "A" of these requirements apply to conversion burners having a maximum input rating within the range of over 400,000 BTUH, up to and including 10,000,000 BTUH. A con version burner series extending below 400,000 BTUH input may be investigated according to the intent of these requirements.1.1.3Section 2, Part "B" of the standard includes requirements additional to those of Part "A" and apply to conversion burners having manufacturer's maximum input ratings in excess of 10,000,000 BTUH and up to and including 50,000,000 BTUH.1.1.4These requirements apply to atmospheric, fan assist and forced draft type conversion burners.1.1.5A conversion burner which complies with these requirements shall not be acceptable if it has features which impair the results contemplated by the requirements.