GB/T 19466.1-2004Plastics -- Differential scanning calorimetry (DSC) -- Part 1: General principles (English PDF)

Foreword

GB/T 19466 Plastics – Differential Scanning Calorimetry (DSC) consists of the

following 7 parts:

--- Part 1: General Principles;

--- Part 2: Determination of Glass Transition Temperature;

--- Part 3: Determination of Temperature and Enthalpy of Melting and Crystallization;

--- Part 4: Determination of Specific Heat Capacity;

--- Part 5: Determination of Polymerization Temperature and/or Times and

Polymerization Kinetics;

--- Part 6: Determination of Oxidation Induction Time;

--- Part 7: Determination of Crystallization Kinetics.

This Part belongs to Part 1 of GB/T 19466.

This Part equivalently adopts ISO 11357-1:1997 Plastics – Differential Scanning

Calorimetry (DSC) – Part 1: General Principles.

This Part equivalently translates ISO 11357-1:1997.

For the benefit of use, this Part made the following editorial modifications:

a) Modify "this International Standard" into "this Standard";

b) Delete the foreword of the international standard;

c) Replace the international standards listed in the Normative References by the

corresponding national standards that are equivalently modified by China;

d) Number the formulas in the standard as per the formulation requirements of

China's national standard;

e) Give necessary note to the symbols in the formulas;

f) Take bibliography as different informative element of the annex instead of as

annex.

The Annexes A and B of this Part are informative.

This Part was proposed by China Petroleum and Chemical Industry Association.

This Part shall be under the jurisdiction of Subcommittee of General Method and

Product under National Technical Committee for Standardization of Plastics

(TC15/SC4).

Drafting organization of this Part: China National Petroleum Corporation Daqing

Petrochemical Company.

Participating drafting organizations of this Standard: China Petroleum & Chemical

Corporation Beijing Yanshan Petrochemical Resin Application Institute; China Bluestar

and Ghengrand Research Institute of Chemical Industry; Mettler-Toledo Instruments

(Shanghai) Co., Ltd.; Netzsch Scientific Instruments Trading (Shanghai) Co., Ltd.;

China Petroleum & Chemical Corporation Beijing Yanshan Petrochemical Institute;

China Petroleum & Chemical Corporation Qilu Petrochemical Resin Processing

Application Research Institute; China Petroleum & Chemical Corporation Beijing

Research Institute of Chemical Industry; Tianjin United Chemical Co., Ltd.; China

Petroleum & Chemical Corporation Liaoyang Petrochemical Company Olefin Plant;

China Petroleum & Chemical Corporation Maoming Ethylene Company; and Shanghai

Precision Scientific Instrument Co., Ltd.

Chief drafting staffs of this Part: Bao Shixing, Zhang Lijun, Zhong Ping, Wang Gang,

Wang Weizhong, and Shi Qunce.

This Part was first-time formulated.

Plastics – Differential Scanning

Calorimetry (DSC) – Part 1: General Principles

WARNING -The use of this Standard may involve hazardous materials,

operations and equipment. This standard does not purport to address all of the

safety problems associated with its use. It is the responsibility of the user of this

standard to establish appropriate health and safety practices and to determine

the applicability of regulatory limitations prior to use.

1 Scope

This Part of GB/T 19466 specifies a method for the thermal analysis of polymers such

as thermoplastics and thermosetting plastics, including moulding materials and

composite materials, using differential scanning calorimetry (DSC).

This Part is applicable to the various determinations can be made on polymers by using

differential scanning calorimetry. These determinations are dealt with in Parts 2 to 7 of

GB/T 19466.

2 Normative References

The provisions in following documents become the provisions of this Part through

reference in this Part of GB/T 19466. For dated references, the subsequent

amendments (excluding corrigendum) or revisions do not apply to this Part, however,

parties who reach an agreement based on this Part are encouraged to study if the

latest versions of these documents are applicable. For undated references, the latest

edition of the referenced document applies.

GB/T 2918-1998 Plastics - Standard Atmospheres for Conditioning and Testing

(idt ISO 291:1997)

3 Terms and Definitions

For the purposes of this Part of GB/T 19466, the following terms and definitions apply.