GB/T 32684-2016 in English

《GB/T 32684-2016塑料 酚醛树脂 游离甲醛含量的测定》由TC15（全国塑料标准化技术委员会）归口，TC15SC11（全国塑料标准化技术委员会热固性塑料分会）执行，主管部门为中国石油和化学工业联合会。

Plastics - Phenolic resins - Determination of free formaldehyde content

1 Scope

This standard specifies the methods for determining the free formaldehyde content in phenolic resins and its modified resins.

This standard is applicable to the determination of free formaldehyde content in phenolic resins and its modified resins. The result only represents the actual free formaldehyde content in the resin during determination, and has no direct relationship with the free formaldehyde content during or after resin processing.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528:2000, IDT)
GB/T 6682 Water for analytical laboratory use - Specification and test methods (GB/T 6682-2008, ISO 3696:1987, MOD)

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1
free formaldehyde
formaldehyde that is present in unbound form as formaldehyde, formaldehyde dihydrate (dihydroxymethylene) or polyoxymethylene in a condensation resin

Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Test methods
5 Test report