CTSO-2C702a 民用航空喷气燃料

日期：2022 年 5 月 27 日局长授权

批准：

中国民用航空技术标准规定

本技术标准规定根据中国民用航空规章《民用航空材料、零部件和机载设备技术标准规定》（CCAR37）颁发。中国民用航空技术标准规定是对用于民用航空器上的某些航空材料、零部件和机载设备接受适航审查时，必须遵守的准则。

民用航空喷气燃料

1. 目的

本技术标准规定（CTSO）适用于申请民用航空喷气燃料技术标准规定项目批准书（CTSOA）的制造人。本 CTSO 规定了民用航空喷气燃料为获得批准和使用适用的 CTSO 标记进行标识所必须满足的最低性能标准。

2. 适用范围

本CTSO 适用于自其生效之日起提交的CTSOA 申请。按本CTSO批准的民用航空喷气燃料，其设计大改应按 CCAR-21 要求重新申请CTSOA。

3. 要求

a ．原料及工艺要求

本 CTSO 标记的喷气燃料原料应来自于原油、天然气凝析油、重油、页岩油和油砂等，且使用直馏、加氢等传统工艺生产。

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CAAC CTSO-2C702

b ．性能要求

喷气燃料应满足国内外通行的产品标准要求。通行的产品标准有GB 6537、ASTM D1655 等。喷气燃料添加剂要求参见 CTSO-2C707。

c ．其他要求

喷气燃料除满足产品标准的要求外，还应按照 ASTM D4054 开展部分特性性能和部分材料相容性试验。特性性能如化学特性、物理特性、电性能、地面处理性能和安全性。材料相容性包括金属材料和非金属材料。

d ．检验机构

所有的试验均在局方认可的检验机构进行或在局方监督下进行。

e ．偏离

如果采用替代或等效的符合性方法来满足本 CTSO 规定的最低性能标准要求，则申请人必须表明产品保持了等效的安全水平。申请人应按照 CCAR-21-R4 第 21.368 条（一）款要求申请偏离。

4. 标记

a．喷气燃料的产品质量合格证及其他相关文件至少应标注以下

内容，但不限于：

（1）产品牌号和标准；

（2）局方批准的 CTSOA 证件号对应的 CTSO 标准号；

（3）直馏组分、加氢精制组分和加氢裂化组分体积分数；

（4）生产单位名称和地址；

（5）生产日期、数量和批次号。

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b ．喷气燃料的产品质量合格证可参考附录 1 所示。

5. 资料要求

申请人应提交相关技术资料以支持设计和生产批准，包括：

a ．CCAR-21 中有关申请 CTSOA 的资料；

b ．涉及的 CTSO 以及相关标准或规范；

c ．原料情况说明；

d ．生产工艺技术资料；

e ．产品的化学品安全技术说明书；

f．局方要求的其他材料。

6. 应用说明

申请人取得 CTSOA 后，还应获得装机批准。若符合的产品标准列入了航空器和发动机的型号合格数据单（TCDS）、补充型号合格证（STC）或其他型号设计批准文件，可直接使用，不再进行装机批准。

7. 引用文件

a．GB 标准可以从下列地址购买：中国标准出版社，北京复兴门外三里河北街 16 号，010-68523946。

b．SH 标准可从以下地址订购：中国石化出版社有限公司，北京市东城区安定门外大街 58 号，010-57512507。

c ．ASTM 标准可以从下列地址购买：ASTM, 100 Barr Harbor Drive, West Conshohocken PA 19428-2959。

d. DEF-STAN 标准可从下列地址订购：

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Defence Standardization,65 Brown Street, Kentigern House, UK。也可通过网站 www.dstan.mod.uk 订购副本。

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附录 1

民用航空喷气燃料产品质量合格证（示例）

产品牌号：3 号喷气燃料产品标准：GB 6537-2018

CTSOA 证件号： CTSO 标记：CTSO-2C702

生产单位： 生产地址：

产品数量及批号： 生产日期：

分析项目

质量要求

测试结果

试验方法

外观

室温下清澈透明, 目

视无不溶解水及固体

物质

目测

颜色不小于

+25

GB/T 3555

组成

总酸值(以 KOH 计)/(mg/g) 不大于

芳烃含量(体积分数)/% 不大于

烯烃含量(体积分数)/% 不大于

总硫(质量分数)/% 不大于

硫醇硫(质量分数)/% 不大于

或博士试验

直馏组分(体积分数)/%

加氢精制组分(体积分数)/%

加氢裂化组分(体积分数)/%

0.015

25.0

5.0

0.20

0.0020通过

报告

GB/T 12574

GB/T 11132

SH/T 0689

NB/SH/T 0842

GB/T 1792

NB/SH/T 0174

-

挥发性

馏程

初馏点 IBP/℃

10%回收温度(T10)/℃ 不高于

20%回收温度(T20)/℃

50%回收温度(T50)/℃ 不高于

90%回收温度(T90)/℃

终馏点 FBP/℃ 不高于

残留量(体积分数)/% 不大于

损失量(体积分数)/% 不大于

闪点(闭口)/℃ 不低于

205报告

232报告

300

1.5

38

GB/T 6536

GB/T 21789

密度(20℃)/(kg/m3)

775～830

GB/T 1884

GB/T 1885

SH/T 0604

（续前表）

流动性

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冰点/℃ 不高于

运动黏度(-20℃)/(mm2/s) 不大于

-47

8.0

GB/T 2430

SH/T 0770

GB/T 265

燃烧性

净热值/(MJ/kg) 不小于

烟点/mm 不小于

或烟点最小为 20 mm 时，

萘系烃含量(体积分数)/% 不大于

42.8

3.0

GB/T 384

GB/T 382

SH/T 0181

腐蚀性

铜片腐蚀(100℃, 2 h) /级不大于

1

GB/T 5096

安定性

热安定性(260℃, 2.5 h)

压力降/kPa 不大于

管壁评级/级

3.3

小于 3, 且无孔雀蓝色或异常沉淀物

GB/T 9169

洁净性

胶质含量/(mg/100mL) 不大于

固体颗粒污染物含量 /(mg/L) 不大于

7

1.0

GB/T 8019

GB/T 509

SH/T 0093

导电性

电导率(20℃)/(pS/m)

50～600

GB/T 6539

水分离指数

未加抗静电剂不小于

或加入抗静电剂不小于

85

70

SH/T 0616

润滑性

磨痕直径 WSD/mm 不大于

0.85

SH/T 0687

抗静电剂

初次加入量 /(mg/L) 不大于

抗磨剂/(mg/L) 不大于

20.0

抗氧剂/(mg/L) -

17.0～24.0

结论：

检验员：

审核员：

批准人：

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Number: CTSO-2C702a

Date of approval: May 27, 2022

Approval by: Yang Zhenmei

China Civil Aviation Technical Standard Order

This China Civil Aviation Technical Standard Order (CTSO) is issued according to Part 37 of the China Civil Aviation Regulations (CCAR-37). Each CTSO is a criterion which the concerned aeronautical materials, parts or appliances used on civil aircraft must comply with when it is presented for airworthiness certification.

Civil Aviation Jet Fuel

1. Purpose

This China Civil Aviation Technical Standard Order (CTSO) is for manufacturers applying for aviation jet fuel CTSO authorization (CTSOA). This CTSO prescribes the minimum performance standards that aviation jet fuel must first meet for approval and identification with the applicable CTSO marking.

2. Applicability

This CTSO is applicable for new applications since CTSO goes into effect. Major design changes to aviation jet fuel approved under this CTSO shall require a new authorization in accordance with CCAR-21.

3. Requirements

a. Feedstock and process requirements

Jet fuel marked by this CTSO shall consist predominantly of refined hydrocarbons derived from conventional sources including crude oil,

natural gas liquid condensates, heavy oil, shale oil, and oil sands. The process of jet fuel is fractionation or hydroprocessing.

b. Performance requirements

Jet fuel shall meet requirements of current product specifications which include GB 6537, ASTM D1655 or DEF-STAN 91-091 etc. Components or performance requirements of additives in GB 6537 shall be according to CTSO-2C707.

c. Other requirements

Civil aviation jet fuel shall test some of fit for purpose properties and materials compatibility in accordance with ASTM D4054. Fit for purpose properties include chemistry, bulk physical and performance properties, electrical properties, ground handling properties and safety. Materials compatibility includes metallic materials and non-metallic materials.

d. Testing laboratory

All tests shall be conducted in laboratories approved by CAAC or under the supervision ofCAAC.

e. Deviation

For using alternate or equivalent means of compliance to the criteria in this CTSO, the applicant must show that the product maintains an equivalent level of safety. The applicant must apply for a deviation under the provision of section 21.368(一) in CCAR-21.

4. Marking

a. The quality certificate and other applicable documents of jet fuel

shall be marked at least the following information:

(1) Grade and CTSOAnumber;

(2) Crude oil category and place of origin;

(3) Volume fraction of fractionation, hydrotreating and hydrocracking;

(4) Manufacturer designation and address;

(5) Manufacture date, quantity and batch number;

b. Annex 1 is an example of the refinery certificate quality of jet fuel.

5. Documents Requirements

The applicant shall submit the responsible documents as follows.

a. Documents for CTSOA application according to CCAR-21;

b. Standards or specifications;

c. Description of feedstock;

d. Description of manufacturing process;

e. Safety data sheet for chemical products(SDS);

f. Other documents required by CAAC.

6. Application Note

After CTSOA authorization, the applicant shall obtain aircraft installation approval. If product standards have already listed in the type

certificate data sheets (TCDS), supplemental type certificate (STC) or other design approval documents, civil aviation jet fuel is not essential for installation approval.

7. Referenced Documents

a. GB standards are available from:

Standard Press of China, No. 16, North Sanlihe Street, Fuxingmenwai, Beijing. Tel: 010-68523946.

b. SH standards are available from:

China Petrochemical Press Co., Ltd., No. 58, Andingmenwai Street, Dongcheng District, Beijing. Tel: 010-57512507.

c. ASTM standards are available from:

ASTM, 100 Barr Harbor Drive, West Conshohocken PA 19428-2959.

Appendix 1

Refinery Certificate Quality (Example)

Grade number:

Product standard:

CTSOAnumber:

CTSO: CTSO-2C702

Manufacturer designation

Product quantity and batch number:

Manufacturer address：

Manufacture date：

Property

Limits

Results

Test Method

Appearance

Clear, bright and visually

free from solid matter and

undissolved water at

ambient fuel temperature

Visual

Color

Report

Composition

Acidity, total mg KOH/g Max

Aromatics, percent by volume Max

Olefins, vol % Max

Sulfur, total percent by mass Max

Sulfur, mercaptan, percent by mass Max

Doctor Test

fractionation components, vol %

hydrotreating components, vol %

Hydrocracked components, vol %

0.0020

Pass

—

Volatility

Distillation

Initial boiling point

10% recovered, (T10) / °C Max

20% recovered, (T20) / °C

50% recovered, (T50) / °C Max

90% recovered, (T90) / °C

Final boiling point / °C Max

Residue, vol % Max

Loss, vol % Max

205

232

Flash point/ °C Min

Density at 20 °C / (kg/m3)

Fluidity

Freezing point / °C Max

Viscosity at -20 °C / (mm2/s) Max

Combustion

Neat heat of combustion / (MJ/kg) Min

Smoke point / mm

Min

Smoke point / mm and naphthalenes,

vol %

Max

Corrosion

Copper strip, 2 h at 100 °C / Grade Max

Stability

Thermal stability, 2.5h at 260 °C

Filter pressure drop / kPa Max

Less

Tube rating

than

3

no peacock or abnormal color deposits

Cleanliness

Existent gum / (mg/100 mL) Max

Particulate contamination / (mg/L) Max

Conductivity

Electrical conductivity at 20 °C / (pS/m)

Water separation index

Without electrical conductivity additive Min

With electrical conductivity additive Min

Lubricity

Wear scar diameter / mm Max

Static dissipater additive

First dose, mg/L Max

Anti-wear additive, mg/L Max

Antioxidant, mg/L -

17.0~24.0

Conclusion:

Tested by:

Reviewed by:

Approved by:

(The English version is for reference only. In case of any discrepancy or ambiguity of meaning between this English translation and the Chinese version, the latter shall prevail.)