GB/T 18952-2017Rubber compounding ingredients—Sulfur and methods of test (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 18952-2003 "rubber compounding sulfur test method." This standard and GB/T 18952-2003 In addition to editorial changes, the main technical changes are as follows.

--- Modify the scope (see Chapter 1, 2003 edition Chapter 1);

--- Added classification, model and marking terms (see Chapter 3);

--- Added 14 types of sulfur technical requirements (see Table 1, Table 2, Table 3);

--- Modify the test method of heating reduction (see 5.3, 2003 edition 4.7);

--- Modify the test method of ash (see 5.4, 2003 version 4.8);

--- Modify the sieve residue test method (see 5.5, 2003 edition of 4.2);

--- Modify the total sulfur content of the test method (see 5.7, 2003 version 4.1);

--- Modify the oil content of oil-filled sulfur test method (see 5.9, 2003 Edition 4.3);

--- Increasing the thermal stability of insoluble sulfur test method (see 5.10);

--- Added heavy white oil technical requirements (see Appendix A);

--- Removed the test method of insoluble sulfur rebens (see 2003 version 4.5);

--- Removed the test method of arsenic content (see 2003 version 4.9);

--- Added inspection rules, marking, packaging, transportation, storage and safety provisions (see Chapter 7, Chapter 8).

1 Scope

This standard specifies the classification of rubber compounding agent sulfur, model, marking, technical requirements, test methods, inspection rules, signs, packaging, transportation Lose, store and safe.

This standard applies to industrial sulfur as raw materials for the preparation of soluble sulfur and soluble sulfur as raw materials by heating, quenching and other processes Insoluble sulfur.

Formula: S, [S]n.

CAS RN 7704-34-9 (soluble sulfur)

CAS RN 9035-99-8 (insoluble sulfur)

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB 190-2009 Dangerous goods packaging mark

GB/T 191-2008 Packaging - Pictorial signs

GB/T 265 Determination of kinematic viscosity and kinematic viscosity of petroleum products

GB/T 601 chemical reagent standard titration solution preparation

GB/T 603 chemical reagent test methods used in the preparation of preparations and products

GB/T 2013-2010 Liquid petroleum chemical product densitometry

GB/T 6040-2002 General rules of infrared spectrometry

GB/T 6679 General rules for sampling solid chemical products

GB/T 6682-2008 Laboratory use specifications and test methods for analysis

Standard Test Method for Polycyclic Aromatic Hydrocarbons in Paraffin

GB/T 8170-2008 Representation and determination of rules for repair of numerical values and limit values

GB/T 11079 white oil easy carbonization test method

Test methods for rubber antioxidants and vulcanization accelerators

GB 12268-2012 dangerous goods list of names

GB 12463 General specification for transport of dangerous goods packaging

GB 15603 commonly used chemical dangerous goods storage General

SH/T 0134 white oil solid paraffin test method

3 Classification, model and mark