GB/T 23673-20193,4-Dichloroaniline (English PDF)

Foreword

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

This standard replaces GB/T 23673-2009 `` 3,4-Dichloroaniline ''. Compared with GB/T 23673-2009, except for editorial changes The technical changes are as follows.

--- Amend "CASRN" to "CASNo." (See Chapter 1, Chapter 1 of the 2009 edition);

--- Deleted the normative reference documents for analytical laboratory water (see Chapter 2 of the 2009 edition);

--- Updated some normative references (see Chapter 2, Chapter 2 of the 2009 edition);

--- Delete the product specifications of first-class products (see Chapter 3, Chapter 3 of the 2009 edition);

--- Modified the p-chloroaniline content index of premium products (see Chapter 3, Chapter 3 of the 2009 edition)

--- Modified the description of safety information (see 4.1, 4.1 of 2009 version);

--- Amended the content included in the safety technical specification (see 4.2, 4.2 of the 2009 version);

--- Revised appearance assessment method (see 6.2, 6.2 of 2009 edition);

--- Amended the quality specification of methanol (6.4.2, 6.4.2 of 2009 version);

--- Increased analytical balance accuracy requirements (see 6.4.3.5);

--- Increased the allowable difference between the measured sample amount and the measurement result of the moisture determination (see 6.5);

--- Revised the regulation on allowable difference of net content of packaging (see 8.3, 8.2 of 2009 edition).

1 Scope

This standard specifies requirements for 3,4-dichloroaniline, safety information, sampling, test methods, inspection rules, and marking, labeling, packaging, and shipping. Lose and store.

This standard applies to the quality control of 3,4-dichloroaniline products.

Molecular formula: C6H5Cl2N

Relative molecular mass: 162.02 (according to 2017 international relative atomic mass)

CAS No.: 95-76-1

2 Normative references

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

GB 190 Dangerous Goods Packaging Mark

GB/T 191-2008 Packaging, storage and transportation icon

GB/T 2384-2015 General method for determination of melting point range of dye intermediates

GB/T 2386-2014 Determination of moisture in dyes and dye intermediates

GB/T 6678-2003 General sampling rules for chemical products

GB/T 8170-2008 Numerical rounding rules and expression and judgment of limit values

GB/T 9722-2006 General rules for chemical reagent gas chromatography

GB 12268-2012 List of dangerous goods

GB 12463 General Technical Conditions for Dangerous Goods Transport Packaging

GB 15258 regulations for the preparation of chemical safety labels

GB 15603 General Storage Rules for Common Chemical Dangerous Goods

GB/T 16483 Chemical safety data sheet content and item sequence